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Tue Jan 17 22:34:04 HKT 2017

weblog


log down some useful resource


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download zip of files only

Tue Feb 20 23:48:01 HKT 2018 From /weblog/photographic

tutorial



About marco photograhy - http://www.dpreview.com[..]7237/depth-of-field-in-macro-photography

動 態 攝 影 分 享 - http://www.dchome.net/viewthread.php?tid=432312 http://patricklenz.com[..]ts/gymnastics-fundraiser-portfolio-shoot http://www.dcfever.com/news/readnews.php?id=14264&link=guid

世盃攝影師落場 三機三鏡是基本 - http://worldcup2014.appledaily.com[..]om/realtime/all/latest/20140624/52618252

India guide - http://www.dchome.net/viewthread.php?tid=481974

請問點影一個人行緊過黎既情景 - http://www.dchome.net/viewthread.php?tid=753867

http://digital-photography-school.com[..]chool.com/how-to-take-great-group-photos

Street photographic - http://www.dchome.net/viewthread.php?tid=819443 http://www.dcfever.com/column/read.php?id=1562 , 呈圓狀, 二等分, 重覆式, 同形狀

What is the real meaning of Aperture in zoom len - http://digitaljournalist.org/issue0909/tech-tips.html

How to take building photo look proper vertically - http://www.dchome.net/viewthread.php?tid=833344

How to take astro landscape photo - http://www.hokoon.edu.hk/astro/photocontest/astro_landscape.html

How to take a good photo - http://www.dpreview.com/articles/4491391950/evolution-of-an-image

Think about composition rule - http://www.dpreview.com/articles/1304360703/breaking-the-rules

http://www.petapixel.com[..]or-beautiful-light-painting-photographs/

Using shifted len to create create landscape photo - http://www.dpreview.com/articles/9496515776/the-dslr-field-camera

http://erickimphotography.com[..]-can-teach-you-about-street-photography/

你也可以做得到]超簡易DIY證件相拍攝 - http://www.dcfever.com/column/read.php?id=2070

淺談燈光人像, 逆光和壓光 - http://www.dcfever.com/column/read.php?id=2020 http://wlcreative.com[..]%87%E7%87%88%E5%85%89%E4%BA%BA%E5%83%8F/ http://www.dcfever.com/column/read.php?id=3988

Tutorial about using DSLR to take good movie - http://www.dcfever.com/news/readnews.php?id=9500&link=guid

How to take cloud sea photo - http://www.dcfever.com/column/read.php?id=2273

Informaton of light pillar - http://www.islandnet.com/~see/weather/eyes/pillars.htm

How to take Lightning photos - http://www.dcfever.com/column/read.php?id=2456

How to take children photo - http://www.dcfever.com/column/read.php?id=2487

進階對焦技巧 – 快門對焦分開處理 - http://wlcreative.com[..]%A6%E5%88%86%E9%96%8B%E8%99%95%E7%90%86/

水底攝影入門(一):水底光線的考慮 - http://www.dcfever.com/column/read.php?id=2459

http://petapixel.com[..]active-photography-skill-tree-beginners/

Zone system - http://www.mobile01.com/topicdetail.php?f=257&t=2487912

How to use flash in studio - http://www.dcfever.com/fillens/read.php?id=308

Tips of taking photo for wild life - http://cn.wsj.com/big5/20150601/PHO101044.asp

TimeLapse tutorial - http://www.dcfever.com/column/read.php?id=3381 http://www.dcfever.com/news/readnews.php?id=20997

用小電筒照出静物「封面相」 - http://www.dcfever.com/column/read.php?id=3937

How to find your vision? practice, practice, practice - http://www.mikkolagerstedt.com[..]3/how-to-find-your-vision-in-photography

拍出令人心動的女生照片,分享如果教導模特兒擺 POSE - http://www.dcfever.com/column/read.php?id=4370

How to show dimension - http://digiphoto.techbang.com[..]the-construction-of-space-in-photography

How to take food photo - http://letsfilm.org/archives/320676

How to tone color - http://digiphoto.techbang.com[..]-ideas-learn-to-tone-and-color-control#_

Common shutter speed - http://digiphoto.techbang.com[..]professional-photographers-shutter-speed

12-photo-posture-tips-make-your-characters-just-like-professional-models -
http://digiphoto.techbang.com[..]-just-like-professional-models-beautiful

人像攝影經驗分享,幾個提升拍攝技巧的要點 - http://www.dcfever.com/column/read.php?id=4663

初學者也能拍出唯美畫面:攝影師教你捕捉絕美風景照的4步驟 - https://digiphoto.techbang.com[..]ture-the-stunning-scenery-of-the-4-steps

想拍漂亮的散景靜物嗎?6步驟DIY一個超絢麗散景牆, with 鋁箔或銀色包裝紙 - http://digiphoto.techbang.com[..]steps-to-a-super-gorgeous-diy-bokeh-wall

3D photographic technique - http://www.dchome.net/viewthread.php?tid=266665&extra=page%3D1

(google search) (amazon search)


Tue Feb 20 23:44:08 HKT 2018 From /weblog/photographic

star


星軌拍攝技巧 數問 -

1).數碼機因hot pixel而唔適合曝得耐...最好分開影影夠幾個鐘...咁每張間隔之間都要俾CMOS斗下氣?
有師兄 教過 分十幾張 每張 10-20min 再合成 好過 一野 暴 幾粒鐘, (菲林 令計)

2).數碼機有D人話用ISO 100、有人話用ISO 400-800好...如果用合成方法...其實係咪都係就番光害而定...定係關雜訊事?
睇天氣 , 小弟 用 o個次 用 iso 100

5).北極星仰角澳門係23度,咁香港一樣??
4季 都唔同 位置, 用星座 搵 會準確 d, e+ 係 冬季, 北極星 位置 係 獵戶座 (lei 個最易 認, 唔會 搵唔倒 ... ) 頭頂 (腰帶 致 頭頂 距離 再過 5倍左右)

附圖 係 舊年 去雲南 香格里拉 時影, 本泥想 長暴, 不過 o個晚 太涷 個人 頂唔順 要收皮 反酒店

http://www.dchome.net/viewthread.php?tid=798154

With a lot of information, 香港的星空 — 觀測及拍攝資訊 - http://www.dcfever.com/column/read.php?id=1829

Herman's articles at dcfever - http://www.dcfever.com/column/info.php?id=185

500px tutorial - http://500px.com/blog/738/tutorial-photograph-the-night-sky

About Comet - http://www.dcfever.com/column/read.php?id=2193

Atmospheric optical phenomena 大氣光學現象 - http://matthew-chin.blogspot.hk[..]16/06/atmospheric-optical-phenomena.html

Stars & Night Sky - http://www.mikkolagerstedt.com[..]top-5-tips-to-photograph-stars-night-sky

=====
這張是11月15日凌晨拍攝的M42獵戶座星雲, 大埔的光害較嚴重, 所以要加上IDAS V4濾鏡作長時間曝光, 分三段不同時間曝光及作Layer Masking 處理, 把動態範圍拉闊. 在月光的影下算是滿意, 希望之後可以分數晚作10小時以上的曝光並加長每一張frame 的曝光時間 (現在是5分鐘一張), 使到暗位的表現進一步改善.

Place: Tai Po
Date: 14 Nov, 2013 (UT)
Camera: Canon 20Da
Lens: Canon EF-600 F4L
Mount: Vixen Sphinx with Star Book
Filter: IDAS V4
Exposure: 10 sec x 10, 30 sec x 10, 300sec x 26
ISO: 800
Guiding: Borg 60mm telescope, AIS120MM, PHD guiding.
Image calibration: Dark x 20 (average) for each exposure, Bias x 16 (Median), Dark subtracted Flat field x 20 (Median)
Processing: DSS, PS: layer Mask, Cropped, curve, colour adjusted.

http://forum.hkas.org.hk/viewthread.php?tid=8009
=====

http://list25.com[..]resemble-things-found-on-earth/?view=all

how-to-find-the-milky-way - http://goldpaintphotography.com[..]om/2015/07/24/how-to-find-the-milky-way/

how-to-capture-sharp-star-photographs - http://www.mikkolagerstedt.com[..]10/how-to-capture-sharp-star-photographs

銀河 - 觀測和拍攝 - http://matthew-chin.blogspot.hk/2016/06/blog-post.html

簡易四步驟處理高清銀河 - http://www.dcfever.com/column/read.php?id=3278 TimeLapse-AfterEffects特效『星流跡影片』-進階 - http://www.dcfever.com/column/read.php?id=3935

500 rule:
11mm: 45.5 seconds
12mm: 41.7 seconds
14mm: 35.7 seconds
16mm: 31.3 seconds
18mm: 27.8 seconds
20mm: 25 seconds
24mm: 20.8 seconds
28mm: 17.9 seconds
35mm: 14.3 seconds
50mm: 10 seconds
85mm: 5.9 seconds

http://www.price.com.hk/news.php?sec_id=12&id=7216

How to find constellations: a starter’s guide - http://www.zmescience.com[..]eature-post/starter-guide-constellations

http://www.deepskycolors.com[..]ilky-Way-Photo-Concepts-You-May-Wan.html

(google search) (amazon search)


Tue Feb 20 23:39:39 HKT 2018 From /weblog/photographic

lighting


Good use of night make everthing change - http://www.avbuzz.com/bbs/model/model-thread-80887.html

Tutorial: How to shoot a martini splash photo using only speedlights - https://www.dpreview.com[..]ly-speedlights?ref_=pe_1674010_132618830

An ok book that introduce how to setup lighting for indoor portrait - http://www.books.com.tw/exep/prod/booksfile.php?item=0010353837


(google search) (amazon search)


Tue Feb 20 09:58:45 HKT 2018 From /weblog/science/animal

cat


https://list25.com/25-bizarre-cat-facts-you-need-to-know/

(google search) (amazon search)


Mon Feb 19 23:30:09 HKT 2018 From /weblog/computer+science

compiler


Bootstrapping a compiler from nothing. - http://discuss.joelonsoftware.com/default.asp?design.4.357910

ON TAIL CALL OPTIMISATION - https://codurance.com/2017/12/05/on-tail-call-optimisation/

What LLVM can do, and cannot do - https://www.infoworld.com[..]er-behind-swift-rust-clang-and-more.html

(google search) (amazon search)


Mon Feb 19 23:26:54 HKT 2018 From /weblog/unix

filesystem


Advisory Locking and Mandatory Locking - http://www.thegeekstuff.com/2012/04/linux-file-locking-types/

Basic info of inode - http://www.thegeekstuff.com/2012/01/linux-inodes/

Explanation of /proc filesystem - http://www.redhat.com[..]anual/ref-guide/s1-proc-directories.html

Linux file system structure - http://www.thegeekstuff.com/2010/09/linux-file-system-structure/

File system for archive files - http://linuxtoy.org/archives/avfs.html

BeOS file system, other than discuss about BeOS FS, also discussing about evolution of design of file system - http://arstechnica.com[..]rce/news/2010/06/the-beos-filesystem.ars http://arstechnica.com[..]03/past-present-future-file-systems.ars/

ZFS - http://www.thegeekstuff.com/2015/07/zfs-on-linux-zpool/ https://clusterhq.com/2014/09/11/file-systems-data-loss-zfs/ http://www.linuxjournal.com/content/zfs-linux

The file size of command "df" return is compressed data, raw disk usage
If we want compress amount, we need to get the compressratio using /usr/sbin/zfs
We can get more system detail via perl package Sun::Solaris::Kstat , we can google "arc_summary.pl" as an example

Using ZFS as version control - http://zef.me/blog/6023/who-needs-git-when-you-got-zfs

(google search) (amazon search)


Sat Feb 17 23:44:47 HKT 2018 From /weblog/learning

Learn fast


#1 – Pegging (or How Mental Magicians can Perfectly Recall Hundreds of Numbers)
#2 – Metaphor (Juliet is the sun… or is she a chemical formula?)
#3 – Total Immersion (Or How a Guy Can Become Fluent in 8 Languages)
#4 – Visceralization (What does a derivative look like?)
#5 – Linking (Or How to Remember a Grocery List Without the Paper)
#6 – The 5-Year Old Method (Try explaining quantum physics to a first grader)
#7 – Ambiance Catalysts (Or How Drinking a Pint Can Improve Your Studying)
#8 – Diagrams (Who said doodling in class was wrong?)
#9 – Speed Reading (Or How to Read 70 Books in a Year)

http://www.scotthyoung.com[..]ng-that-most-people-have-never-heard-of/

用 6 個步驟,熟悉一個產業 - http://www.inside.com.tw[..]g-domain-expertise-in-a-complex-industry

https://medium.com[..]-like-the-best-in-the-world-555fa4de5010

http://www.businessinsider.com[..].com/how-to-learn-anything-faster-2016-8

(google search) (amazon search)



Fri Feb 16 10:05:31 HKT 2018 From /weblog/learning

stress


In other words, both groups were stressed, but one group channeled the stress as a performance challenge; the other group as a performance threat. It wasn't the stress of a difficult test that caused distress--everyone felt that. It was how subjects interpreted their stress. - http://traderfeed.blogspot.com.au[..]mbracing-stress-minimizing-distress.html

http://nautil.us/blog/do-you-actually-need-more-stress

Calming when conflict - https://hbr.org/2015/12/calming-your-brain-during-conflict

https://aeon.co[..]ks-in-the-human-body-to-make-or-break-us

A Stanford psychologist has a simple mental exercise for tackling student stress - https://qz.com[..]l-exercise-for-tackling-student-anxiety/

The 40% rule is simple: When your mind is telling you that you’re done, that you’re exhausted, that you cannot possibly go any further, you’re only actually 40% done. ( umm... not sure if it really useful all the time ) - https://www.forbes.com[..]the-40-rule-the-simple-secret-to-success

“The ideal situation for improving learning and memory would be to experience no stress and to exercise,” Edwards said. - https://www.zmescience.com/science/stress-memory-exercise

(google search) (amazon search)


Fri Feb 16 09:31:27 HKT 2018 From /weblog/business

product


Why we should start small - http://spin.atomicobject.com[..]3/11/01/minimum-viable-product-benefits/

http://www.yegor256.com[..]4/10/20/how-we-write-product-vision.html

Most of product development is the middle part: the messy, weird, unintuitive place where you and your team are making hundreds of small decisions. If you are not looking to real people by continuously conducting user research and running hypothesis-driven tests, you’ll slowly (and with growing confidence) get far away from your actual goal: Making a product for real people. - https://medium.com[..]-things-come-to-think-of-it-42fa3d7cb415

(google search) (amazon search)


Fri Feb 16 00:27:25 HKT 2018 From /weblog/learning

memory


These 3 Hacks Will Make You Remember More - https://betterhumans.coach.me[..]will-make-you-remember-more-b30a3d9b3136

When trying to memorise new material, it’s easy to assume that the more work you put in, the better you will perform. Yet taking the occasional down time – to do literally nothing – may be exactly what you need. Just dim the lights, sit back, and enjoy 10-15 minutes of quiet contemplation, and you’ll find that your memory of the facts you have just learnt is far better than if you had attempted to use that moment more productively. - http://www.bbc.com[..]effortless-way-to-strengthen-your-memory

(google search) (amazon search)


Thu Feb 15 23:58:24 HKT 2018 From /weblog/learning

performance


焦慮能讓你表現更出眾 - http://cn.wsj.com/big5/20120711/hea075016.asp?source=rss

Importance of finding out your Signature Strengths - http://traderfeed.blogspot.com.au[..]ature-strengths-and-trading-success.html

索托說:“你應該從改變行為做起,接下來,如果你能長期保持這種新行為,這種行為就會被鎖定下來。”他說,如果能獲得心理治療師的指導,你可以在幾個月之內看到持續的變化。你也可以學著自己管理你的性格特征,只是要花費比較長的時間。
那么,你應該從哪做起呢?加州德爾馬(Del Mar)的心理學家理查德‧萊瓦克(Richard Levak)表示:“首先,我們必須認識到性格中有哪些因素對我們構成了影響。如果我愛發牢騷,好爭辯,還有點多疑,我總是因為跟同事吵架,老是責怪別人而被解雇,那我就必須意識到得改變一下。”
萊瓦克說,這和糾正暴飲暴食這種壞習慣相似。要想減肥,你就得認識到自己什么時候以及為什么會暴飲暴食。萊瓦克博士表示:“如果你有戒心過重和好斗的傾向,你就要對自己說:‘好的,當我老板過來跟我說話,而我立馬感覺老板在挑我的刺,想要自我防衛的話,那我就是反應過激了。’讓自己冷靜下來,不要爭吵。”
不要把期望值定得太高。耐心一些。索托博士說,要把一種有意為之的行為變成習慣,需要花費很長時間。不要太擔心其他人的反應,因為你的變化通常是他們樂于見到的。

http://cn.wsj.com/big5/20140502/lif114051.asp?source=rss

How you can use your negative emotion - http://www.theatlantic.com[..]reat-depression/304247/?single_page=true

Performance improvements… or experiments? - http://letstalkaboutjava.blogspot.com[..]ormance-improvements-or-experiments.html

http://traderfeed.blogspot.hk[..]e-you-operating-in-peak-performance.html

This, I find, is the single greatest impediment to pursuit of excellence: Most of us are simply too busy doing our jobs well to become truly world class at what we do. I occasionally ask traders to go back to old journal entries and tell me how much time they spent reviewing those entries and assessing their progress over the past week. In the great majority of instances, the journal entries are never revisited! - http://www.forbes.com[..]ndar-into-a-peak-performance-tool/print/

10-questions-can-dramatically-change-life and business (I don't think so, but anyway a good reading) - https://thenextweb.com[..]ns-can-dramatically-change-life-business

零成本提升工作和健身效率之道:科學擇時 - http://cn.wsj.com/big5/20180206/OPN163737.asp?source=rss

(google search) (amazon search)


Tue Feb 13 23:45:18 HKT 2018 From /weblog/science

cosmos


http://list25.com/25-most-puzzling-mysteries-of-the-universe/

http://list25.com/25-awesome-facts-about-mars/

http://list25.com[..]d-stunning-pictures-about-saturns-rings/

http://list25.com/25-images-that-capture-the-vastness-of-space/

http://list25.com[..]ce-that-you-can-see-with-your-naked-eye/

http://list25.com[..]ill-both-terrify-and-amaze-you/?view=all

http://list25.com[..]ut-space-and-space-exploration/?view=all

我們現在看到的星星早已死亡了嗎? - http://thestandnews.com[..]%B2%E6%AD%BB%E4%BA%A1%E4%BA%86%E5%97%8E/

相對論、量子力學、黑洞和反物質 - https://phycat.wordpress.com[..]uantum-mechanics-black-hole-anti-matter/

http://list25.com[..]t-things-in-the-known-universe/?view=all

http://list25.com/25-space-facts-youve-always-wanted-to-know/

http://list25.com[..]o-probe-images-that-will-blow-your-mind/

https://medium.com[..]sics-allowed-earth-to-exist-195ecc0da9ca

https://medium.com[..]ear-older-than-the-universe-71bee462c6be

http://www.zmescience.com[..]ophysics-space/big-bang-history-15092017

5 questions you were too embarrassed to ask about the expanding Universe - https://medium.com[..]bout-the-expanding-universe-9433c4906a29

Are Space, Time, And Gravity All Just Illusions? - https://medium.com[..]-gravity-all-just-illusions-d1d088df6150

http://list25.com[..]-the-big-bang-theory-you-might-not-know/

http://list25.com/25-sneaky-lies-you-were-told-about-space/

black hole - https://www.zmescience.com[..]c/science-abc-going-inside-a-black-hole/ https://www.zmescience.com[..]/space/supermassive-black-hole-07122017/

https://list25.com/25-most-bizarre-stars-in-the-universe/

https://list25.com[..]s-in-outer-space-that-cant-be-explained/

(google search) (amazon search)


Mon Feb 12 13:54:41 HKT 2018 From /weblog/trip/travelling

misc


遊搜好行:蜜月尋夢  63,000公里 - http://hk.apple.nextmedia.com[..]20120421&sec_id=12187369&art_id=16266814

看北極光、鐘乳石、瀑布彩虹、動物大遷徒、泰姬陵等,都是美國有線新聞網絡( CNN)精選的人生必遊景點 - http://hk.apple.nextmedia.com/international/art/20120715/16515366

尋找心中的最後一塊淨土 - http://cn.wsj.com/big5/20130111/lux073206.asp?source=rss

The best sun set - http://hk.apple.nextmedia.com/international/art/20130815/18379134 www.utravel.com.hk/DetailNews.php?id=AD8RYxEvA3U&utm_source=weekend_all&utm_medium=edm&utm_content=oversea2&utm_campaign=weekend-130904

Nice places at various places on earth - http://mp.weixin.qq.com[..]0dad2d4ac0e22b0f5459e87f1ab5a3b2a7238ee2

地球最深的影像 库鲁伯亚拉洞穴探险 (Krubera Cave,又名Voronya Cave) - http://digi.163.com/14/0707/04/A0HBGP9O001624J2.html

restaurants-with-jaw-dropping-views - http://list25.com[..]urants-with-jaw-dropping-views/?view=all

places-that-look-like-they-are-from-another-planet - http://list25.com[..]e-they-are-from-another-planet/?view=all

places-you-can-get-away-from-pretty-much-everything-and-everybody - http://list25.com[..]-much-everything-and-everybody/?view=all

earths-most-breathtaking-natural-wonders - http://list25.com[..]t-breathtaking-natural-wonders/?view=all

craziest-things-found-in-nature - http://list25.com/25-craziest-things-found-in-nature/?view=all

astounding-fairytale-like-european-castles-and-chateaus - http://list25.com[..]-european-castles-and-chateaus/?view=all

amazingly-unique-walks-around-the-world - http://list25.com[..]-unique-walks-around-the-world/?view=all

popular-landmarks-that-are-creepy-suicide-hot-spots - http://list25.com[..]t-are-creepy-suicide-hot-spots/?view=all

unique-travel-destinations-most-travelers-have-no-clue-exist - http://list25.com[..]st-travelers-have-no-clue-exist/view=all

unique-spring-break-destinations-you-have-to-visit - http://list25.com[..]destinations-you-have-to-visit/?view=all

amazing-places-to-watch-the-sunrise-from-around-the-world - http://list25.com[..]-sunrise-from-around-the-world/?view=all

most-dangerous-hikes-treks-and-climbs-on-earth - http://list25.com[..]ikes-treks-and-climbs-on-earth/?view=all

best-countries-to-live-in - http://list25.com[..]to-the-human-development-index/?view=all

street-food-from-around-world - http://www.damncoolpictures.com[..]eet-food-from-around-world-that-you.html

placed-star-wars-was-filmed-that-you-must-visit - http://list25.com[..]was-filmed-that-you-must-visit/?view=all

most-visited-museums-in-the-world - http://list25.com/25-most-visited-museums-in-the-world/?view=all

11 Popular Tourist Attractions That Might Kill You - http://www.damncoolpictures.com[..]11-popular-tourist-attractions-that.html

mountain-ranges-you-need-to-visit-if-you-are-a-fan-of-nature - http://list25.com[..]sit-if-you-are-a-fan-of-nature/?view=all

beautiful-mountain-passes-you-should-make-a-point-to-travel-through - http://list25.com[..]make-a-point-to-travel-through/?view=all

most-visited-cities-in-the-world-you-should-visit - http://list25.com[..]-in-the-world-you-should-visit/?view=all

most-extreme-climates-and-places-on-earth - http://list25.com[..]e-climates-and-places-on-earth/?view=all

most-generous-countries-in-the-world - http://list25.com[..]enerous-countries-in-the-world/?view=all

volcanoes - http://list25.com/25-most-terrifying-volcanoes-on-earth/?view=all

These places will keep you awake at night. - http://www.damncoolpictures.com/2014/03/very-scary-places.html

incredible-country-borders - http://list25.com/25-incredible-country-borders/?view=all

natural-photos-you-wont-believe-are-not-photoshopped - http://list25.com[..]t-believe-are-not-photoshopped/?view=all

Nice bridge around the earth - http://www.dcfever.com/travel/deal.php?id=14327&link=guid

most-peaceful-countries-in-the-world- http://list25.com[..]eaceful-countries-in-the-world/?view=all

most-charming-alpine-towns-youve-probably-never-seen - http://list25.com[..]owns-youve-probably-never-seen/?view=all

crazy-awesome-festivals-around-the-world-for-every-taste - http://list25.com[..]ound-the-world-for-every-taste/?view=all

unforgettable-adventures-that-youll-be-glad-you-went-on - http://list25.com[..]that-youll-be-glad-you-went-on/?view=all

least-visited-island-countries-in-the-world - http://list25.com[..]-island-countries-in-the-world/?view=all

amazing-uninhabited-islands-that-are-strikingly-beautiful - http://list25.com[..]-that-are-strikingly-beautiful/?view=all

most-visited-countries - http://list25.com[..]visited-countries-in-the-world/?view=all

Atolls - http://list25.com[..]st-amazing-atolls-in-the-world/?view=all

White Christmas - http://list25.com[..]aces-to-have-a-white-christmas/?view=all

Beach - http://list25.com[..]untries-you-would-never-expect/?view=all

Romantic - http://list25.com[..]es-to-ask-someone-to-marry-you/?view=all http://list25.com[..]edding-youve-always-dreamed-of/?view=all

most-remote-places-in-the-world - http://list25.com[..]ost-remote-places-in-the-world/?view=all

Incredible Deserts That Will Make You Wish It Never Rained - http://list25.com[..]-make-you-wish-it-never-rained/?view=all

worlds-most-colorful-cities - http://list25.com[..]cities-to-brighten-up-your-day/?view=all

About diving - http://blog.kkday.com/2016/05/diving.html

About canyons - http://list25.com[..]inspiring-canyons-in-the-world/?view=all

ancient-architectural-wonders - http://list25.com[..]-ancient-architectural-wonders/?view=all

Dangerous roads - http://list25.com/25-extremely-dangerous-roads/?view=all

countries-to-visit-that-you-didnt-know-existed - http://list25.com[..]it-that-you-didnt-know-existed/?view=all

scariest place - http://list25.com[..]-few-are-brave-enough-to-visit/?view=all

Fall Color - http://list25.com[..]at-are-remarkably-breathtaking/?view=all

Winter - http://list25.com[..]s-to-spend-your-winter-holiday/?view=all

beautiful-cities - http://list25.com[..]he-world-to-see-before-you-die/?view=all

volunteer-travel-experiences - http://list25.com[..]vel-experiences-you-should-try/?view=all

Beaches - http://list25.com[..]hes-you-absolutely-have-to-see/?view=all

http://blog.kkday.com[..]ferent-ways-to-travel-in-angkor-wat.html

13 FASCINATINGLY UNUSUAL MUSEUMS AROUND THE WORLD - http://frame.bloglovin.com[..]=5828047371&blog=1583376&frame_type=none

7 Travel Destinations Inspired By Game of Thrones - http://frame.bloglovin.com[..]5833387553&blog=13997320&frame_type=none

endangered-historical-sites - http://list25.com[..]rical-sites-being-destroyed-by-tourists/

https://www.astylejourney.com[..]el-Spots-5-DESTINATIONS-MADE-FOR-ROMANCE

https://carmensluxurytravel.com[..]he-caribbean-is-king-in-fall-and-winter/

http://thetravelhack.com[..]destinations-for-a-luxury-beach-holiday/

https://list25.com/25-best-places-for-swimming-in-the-world/

https://list25.com/25-tallest-waterfalls-in-the-world/

(google search) (amazon search)


Sun Feb 11 23:34:31 HKT 2018 From /weblog/business

fund


http://thielfellowship.org/

說一個好故事,讓 Pitch 更精彩 - https://www.inside.com.tw/2014/03/11/oren-jacob-toytalk

(google search) (amazon search)


Sun Feb 11 00:14:37 HKT 2018 From /weblog/software_engineering/team

leadership


Servant Leadership - http://www.inc.com[..]t-be-my-style-of-servant-leadership.html , similarly, what a leader should do is helping other to do better, not to be the best of the team - http://blog.vincentx.info[..]/03/onthings-manga-taught-me-leadership/ http://www.infoq.com[..]what-do-you-look-for-in-a-servant-leader

Mentorship - http://www.javacodegeeks.com[..]entorship-in-software-craftsmanship.html

Keep focus, or lose - http://googlesystem.blogspot.com[..]0/how-steve-jobs-influenced-googles.html

The anti-pattern and suggestion about new joiner - http://5whys.com[..]-you-will-face-as-a-software-team-l.html

Believe me, the objective was not to make decisions, but to create the right environment so that the right decision would be made. http://tech.groups.yahoo.com/group/leandevelopment/message/1952

A nice set of questions to ask for a leader - http://jchyip.blogspot.com[..]3/questions-on-influence-and-growth.html

In short, don't put your shoes on others' foot - http://www.inc.com[..]earned-in-the-army_Printer_Friendly.html

4 types of leadership style, well, I think he model leadership a little too simple - http://softwarecreation.org[..]s-the-best-leader-for-the-software-team/

Your experts are spending all their time mentoring novices. Therefore:

Put one expert in charge of all the novices, let the others develop the system. - http://gigix.agilechina.net[..]010/2/25/organizational-pattern-day-care

What is the key Characteristics of great team - http://www.infoq.com/news/2011/01/characteristics-agile-org

This is very insightful obversation, in many time we look into something work in short term but not really solve the problem, a discussion about why so many people like micromanagement even if they know it is bad - http://www.thoughtclusters.com[..]m/2011/01/programmers-and-micromanaging/

http://www.adoptionofagile.com[..]best-thing-you-can-do-for-your-team.html <- is provide required information, probably more transparent.

Don't make me think... but you have no business not allowing me to think if I choose to. - http://jchyip.blogspot.com[..]allow-me-to-think-just-dont-make-me.html

How To Lead Clever People, actually I am double about this, let's see - http://business.in.com/printcontent/28632 http://business.in.com/media/images/2011/Sep/img_56852_wise.jpg

How to grow the leadership - http://www.jrothman.com[..]og/mpd/2012/11/nurturing-leadership.html

他在公司的名言是「When you give, you get」。他在上海成立科研中心,大方讓上汽參與,他認為各懷鬼貽的氣氛不可能做出成績。合資公司理論上是獨立個體,合資公司員工應把合資公司利益放到最前,而不是自己原屬公司的利益,但很少人做得到。慢慢下來,上汽也逐漸對墨菲產生尊重。

在美國和上海工作過的GM員工,指上海GM的工作氣氛跟美國截然不同,甚至認為上海GM形成一套自己的文化,這套文化建基於信任。墨菲跟員工打成一片,工餘在家中安排活動,中美關係罕有地融洽。 http://www.thehousenews.com/finance/由傲慢製造的優秀企業/



10. 永遠記得,做出決定前要先綜觀全局。

9. 否定別人跟切換開關一樣容易。但你最好拼死抵抗這種衝動,因為你也曾經做過蠢事。你做過爛決定,然後學習、成長,別人也一樣。

8. 掃地、擦桌、關燈。哪裡有漏洞要補就去補——即便那很瑣碎、沒人會注意。你必須做這些事去造福你的產品、你的公司,以及所有你們團隊共同打造的,令眾人驚艷、神奇的事物。

7. 你無法做所有的事。閉上眼睛,向後仰倒,學會信任。

6. 顯然有某種更為有效的方法能處理你正在做的事。是什麼呢?在每天回家的路上反覆思考吧。

5. 找出總是在依賴你的人,想想要怎麼做才能協助他們,讓他們自力更生。或許你覺得當個壟斷市場的鮭魚供應商很重要,但如果小鎮的所有人都學會捕魚,便能將你解放出來去做別的事。像是學習種小麥,或是如何馴服那些可愛的小狼。

4. 別說任何對當下討論沒有貢獻的話。你的聲音並非悠揚到絕對必須被聽見。

3. 做得出最好的決定比不上處在得以確保做出更多最佳決定的流程。

2. 就像你經常發表意見那樣,多說感謝和鼓勵的話語。

1. 最重要的是:永遠要掃除障礙物。那怕只是玩玩手指、看看窗外的雲,也別讓你那愚蠢、幼稚的自我阻礙團隊前進的腳步。

http://www.inside.com.tw/2013/02/04/a-manager-s-maifesto

http://joeduffyblog.com[..]oftware-leadership-6-read-every-checkin/

http://www.engineeringandcareering.co.uk[..]o.uk/2014/10/leading-and-delegating.html

https://www.thekua.com[..]op-5-mistakes-for-first-time-tech-leads/

http://www.yegor256.com/2015/01/08/morning-standup-meetings.html

How to lead with diplomatic - http://www.crucialskills.com[..]how-to-be-both-assertive-and-diplomatic/

Dr. Nico Rose cites research that finds that happy people tend to be more effective leaders. - http://www.forbes.com[..]-your-money-managing-your-life-part-one/

https://www.infoq.com/news/2017/02/humility-positive-trait

https://medium.com[..]ge-manager-vs-great-manager-cf8a2e30907d

https://simpleprogrammer.com/coaching-programmers/

(google search) (amazon search)


Sun Feb 11 00:05:57 HKT 2018 From /weblog/science/animal

current


http://www.damncoolpictures.com[..]13/12/22-amazing-facts-about-tigers.html

animals-with-insane-survival-adaptations - http://list25.com[..]th-insane-survival-adaptations/?view=all

rarest-animals-in-the-world - http://list25.com/25-of-the-rarest-animals-in-the-world/?view=all

fastest-land-animals - http://list25.com/25-fastest-land-animals/?view=all

unreal-animals-you-wont-believe-exist - http://list25.com[..]animals-you-wont-believe-exist/?view=all

bizarre-animals-youve-ever-heard-of-before - http://list25.com[..]als-youve-ever-heard-of-before/?view=all

Most hated insects - http://list25.com/25-most-hated-insects-ever-known-to-man/

https://list25.com/25-bizarre-animals-you-didnt-know-exist/

awesome-animals - http://list25.com/25-awesome-animals/?view=all

adorable-hatchlings-that-are-too-cute-for-their-own-good - http://list25.com[..]re-too-cute-for-their-own-good/?view=all

little-known-facts-about-arctic-foxes - http://list25.com[..]known-facts-about-arctic-foxes/?view=all

fascinating-little-known-facts-about-polar-bears - http://list25.com[..]-known-facts-about-polar-bears/?view=all

adorable-photos-of-yawning-animals - http://list25.com/25-adorable-photos-of-yawning-animals/?view=all

animals-with-outrageous-body-proportions - http://list25.com[..]th-outrageous-body-proportions/?view=all

new-species-discovered-in-2014 - http://list25.com[..]new-species-discovered-in-2014/?view=all

lethal-animals-you-hope-to-never-see - http://www.damncoolpictures.com[..]ethal-animals-you-hope-to-never-see.html

natural-phenomena-that-science-has-yet-to-explain - http://list25.com[..]hat-science-has-yet-to-explain/?view=all

dangerous-looking-animals-that-are-relatively-harmless - http://list25.com[..]s-that-are-relatively-harmless/?view=all

Shoebill Stork - http://www.damncoolpictures.com[..]05/if-you-ever-doubted-existence-of.html

sad-facts-about-animals-that-might-make-you-shed-a-tear - http://list25.com[..]animals-that-might-make-you-shed-a-tear/

animal-kingdom-facts-that-you-might-find-hard-to-believe - http://list25.com[..]cts-that-you-might-find-hard-to-believe/

popular-myths-about-animals-that-you-probably-believe - http://list25.com[..]about-animals-that-you-probably-believe/

scary-creatures-living-in-australia - http://www.damncoolpictures.com[..]scary-creatures-living-in-australia.html

strangest-prehistoric-creatures - http://list25.com/25-strangest-prehistoric-creatures/

unusual-cat-species - http://www.damncoolpictures.com/2015/09/unusual-cat-species.html

most-powerful-bites-in-the-animal-kingdom - http://list25.com/25-most-powerful-bites-in-the-animal-kingdom/

freakish-looking-animals - http://list25.com/25-freakish-looking-animals/

US animals-you-wont-find-anywhere-else - http://list25.com[..]ls-you-wont-find-anywhere-else/?view=all

most-invasive-creatures-on-earth - http://list25.com/25-most-invasive-creatures-on-earth/?view=all

scorpion - http://list25.com[..]ost-people-may-not-be-aware-of/?view=all

【寵物】10種奇特動物 你見過邊種? - http://hk.apple.nextmedia.com[..]om/realtime/supplement/20151221/54553011

albino-animals - http://list25.com[..]-animals-you-have-to-see-today/?view=all

Some huge animal - http://list25.com[..]at-are-larger-than-you-realize/?view=all

underwater - http://list25.com[..]and-other-underwater-creatures/?view=all https://list25.com/25-strangest-deep-sea-creatures-discovered/

animal-beards-that-outshine-the-biggest-hipster - http://list25.com[..]t-outshine-the-biggest-hipster/?view=all

kangaroo - http://list25.com[..]facts-to-keep-your-mind-hoping/?view=all

biggest record - http://list25.com/25-larger-than-life-animals/?view=all

stunningly-beautiful-insects - http://list25.com/25-stunningly-beautiful-insects/?view=all

largest prey - http://list25.com/25-largest-birds-of-prey/?view=all

Manatees - http://list25.com[..]-show-how-fascinating-they-are/?view=all

endangered-animals - http://list25.com[..]imals-we-may-lose-this-century/?view=all

strange-animals - http://www.damncoolpictures.com[..]ange-animals-that-will-confuse-your.html

red animal - http://list25.com[..]als-you-need-to-see-to-believe/?view=all

“Larger animals need more food to keep their bodies fueled,” Manger explains. “The elephant, which can eat several hundred kilograms of low-quality food each day, devotes a lot of time to eating, leaving less time for sleep.” - http://www.zmescience.com[..]gy/animals-ecology/wild-elephants-sleep/

chameleon - http://list25.com/25-cool-chameleon-facts-youll-want-to-know/

http://list25.com[..]imal-superpowers-that-are-actually-real/

Capybara (Hydrochoerus hydrochaeris) is a rodent of unusual size - http://www.zmescience.com[..]-files-capybaras-worlds-largest-rodents/

Goldfish turn to alcohol to get through winter in icy ponds Newburgh Gazette -
http://newburghgazette.com[..]ohol-to-get-through-winter-in-icy-ponds/ https://dq.yam.com/post.php?id=8074

storm-sperm-whales - http://www.zmescience.com[..]/geomagnetic-storm-sperm-whales-05092017

http://list25.com[..]ls-nearly-impossible-to-see-in-the-wild/

https://www.zmescience.com[..]ls-ecology/chameleons-fluorescent-bones/

Naming - https://www.zmescience.com[..]imals-ecology/baby-animal-names-04012017

Venomous Creatures - https://list25.com/25-most-venomous-creatures-on-earth/

https://list25.com[..]-discovered-animals-you-havent-seen-yet/

(google search) (amazon search)


Sat Feb 10 22:15:35 HKT 2018 From /weblog/science

human


psychology-tells-you-about-yourself - http://list25.com[..]ology-tells-you-about-yourself/?view=all

body-hacks-life-is-trying-to-hide-from-you - http://list25.com[..]ife-is-trying-to-hide-from-you/?view=all

causes-dark-circles-eyes-sleeping-people-really-tired - http://www.todayifoundout.com[..]s-sleeping-people-really-tired/?view=all

facts-about-the-human-body-you-may-not-be-aware-of - http://list25.com[..]n-body-you-may-not-be-aware-of/?view=all

blood - http://list25.com[..]you-might-not-know-about-blood/?view=all

misconceptions-about-your-body - http://list25.com[..]bout-your-body-that-arent-true/?view=all

pregnancy - http://list25.com[..]nge-the-way-you-view-pregnancy/?view=all

blindness - http://list25.com[..]you-didnt-know-about-blindness/?view=all

【趣味科普】同理心等於同情心?可以後天鍛鍊嗎? - http://hk.apple.nextmedia.com[..]om/realtime/supplement/20160712/55345201

happen-to-your-body-after-you-die - http://list25.com[..]pen-to-your-body-after-you-die/?view=all

your-body-is-weirder-than-you-think - http://list25.com[..]body-is-weirder-than-you-think/?view=all http://list25.com[..]-that-make-absolutely-no-sense/?view=all

DNA - http://list25.com[..]l-help-you-understand-yourself/?view=all http://list25.com[..]-genetics-and-the-human-genome/?view=all

「人體農場」:聽屍體說話 - http://thestandnews.com[..]%BD%E5%B1%8D%E9%AB%94%E8%AA%AA%E8%A9%B1/ http://thestandnews.com[..]8%82%89%E9%AA%A8%E6%9F%A5-q-a-episode-4/

Lie/Cheat - http://list25.com/25-scientific-facts-about-cheating/?view=all http://list25.com[..]o-know-someone-is-lying-to-you/?view=all

Albinism - http://list25.com/25-facts-about-people-with-albinism/?view=all

人腦越來越小 又關facebook事? - http://hk.apple.nextmedia.com[..]om/realtime/supplement/20160705/55315802

為什麼人類的耳朵長成這樣 - http://cn.wsj.com/big5/20161014/LIF115719.asp

oxytocin - http://list25.com[..]us-facts-about-oxytocin-that-youll-love/

About vaginas - http://list25.com/25-things-you-are-ashamed-to-ask-about-vaginas/

http://list25.com/25-strange-things-your-body-says-about-you/

Dream - http://list25.com/25-most-common-dreams-and-their-meanings/ https://list25.com[..]-about-dreams-you-might-not-be-aware-of/ https://list25.com/25-most-common-nightmares-everyone-hates/

Almost everything we know about salt may be wrong. Eating salt actually makes you less thirsty but hungrier - http://www.zmescience.com[..]ence/salt-makes-you-less-thirsty-423432/

Brain - https://www.wired.com/story/your-brain-is-memories https://www.zmescience.com/science/brain-ripples-memory-sleep

從進化的角度來看,幼年就是一段專門為了學習而存在的時期。在成人的庇護下,幼兒唯一的任務就是學習,他們無需操心是否要真的做出點成就來。而成人更注重的則是利用現有知識,快速有效地行動。抑制性化學物質對這一趨勢可能是有利的。自然之道的運行自有其信條:“沒壞就不用修。”既然如此,那麼大腦工作得順順當當,自然也就沒必要去改變它。 - http://cn.wsj.com/big5/20170721/LIF150315.asp?source=rss

According to scientists, these are the three kinds of smile - http://www.zmescience.com/science/types-of-science-31072017/

alleles - http://www.zmescience.com/medicine/genetic/alleles-make-us

What will happen after getting shot? - http://list25.com/25-shocking-facts-about-getting-shot/

“What’s happening with the baby is that a lot of the information is escaping even as the baby is trying to get it organized and stabilized.” In early infancy, a lot of experiences never become memories—they slip away before they can be preserved. - http://www.zmescience.com[..]why-we-cant-remember-before-age-3-05435/

human-digestion-system - http://list25.com[..]igestion-system-you-probably-didnt-know/

“信息時代的到來似乎已經創造了感覺自己無所不知的一代人,”學者們得出結論,儘管“他們對周圍世界的了解之少可能達到了前所未有的程度”。 - http://cn.wsj.com/big5/20171103/OPN165757.asp?source=rss

Human touch can feel molecule-thin differences, study reports - https://www.zmescience.com[..]-molecule-thin-differences-study-reports

It is about smell - https://www.zmescience.com[..]ws-science/science-gut-feelings-08012017

Hypnosis - https://list25.com[..]facts-about-hypnosis-youll-want-to-know/

How our brain change - https://www.zmescience.com/science/human-brain-modern/

allergies - https://www.zmescience.com/other/feature-post/how-allergies-work/

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Fri Feb 09 09:32:48 HKT 2018 From /weblog/history

world


回首沙龍的一生 - http://cn.wsj.com/big5/20140113/PHO093936.asp?source=rss

surgical-tools-you-want-to-stay-away - http://www.damncoolpictures.com[..]urgical-tools-you-want-to-stay-away.html

incredible-animals-that-shaped-human-history - http://list25.com[..]mals-that-shaped-human-history/?view=all

amazing-moments-from-history-captured - http://www.damncoolpictures.com[..]azing-moments-from-history-captured.html

historically-accurate-modern-day-thanksgiving-facts - http://list25.com[..]-modern-day-thanksgiving-facts/?view=all

bizarre-historical-facts-you-didnt-know - http://list25.com[..]istorical-facts-you-didnt-know/?view=all

http://www.damncoolpictures.com[..]last-photos-ever-taken-of-25-famous.html

greatest-warriors-of-all-time - http://list25.com/25-greatest-warriors-of-all-time/?view=all

incredible-historical-armors - http://list25.com[..]orical-armors-that-still-exist/?view=all

facts-about-world-war-i-that-shaped-the-world - http://list25.com[..]ld-war-i-that-shaped-the-world/?view=all

一戰戰地的今與昔 - http://cn.wsj.com/big5/20140630/PHO102559.asp?source=rss http://cn.wsj.com/big5/20140705/opn093501.asp?source=rss

Last photos of 25 famous people - http://www.damncoolpictures.com[..]last-photos-ever-taken-of-25-famous.html

http://list25.com/25-worst-earthquakes-in-history/?view=all

http://list25.com[..]ht-just-make-you-a-grandmaster/?view=all

http://list25.com[..]-bicycles-for-bike-enthusiasts/?view=all

Nowadays doctors don't make house calls all to often but back in 1948 this type of practice was very common. As you're about to see, rural doctors had a very busy job. - http://www.damncoolpictures.com[..]-it-was-like-to-be-rural-doctor-for.html

http://list25.com/25-most-hardcore-snipers-in-history/?view=all

http://list25.com[..]otos-you-wont-believe-are-real/?view=all

http://list25.com/25-bizarre-facts-about-clothing/?view=all

http://list25.com/25-most-influential-cities-in-history/?view=all

http://list25.com[..]hygiene-practices-from-history/?view=all

http://www.damncoolpictures.com[..]ese-are-top-10-highest-iqs-in-human.html

http://list25.com[..]warriors-ever-sent-into-battle/?view=all

保特 - https://theinitium.com/article/20170808-photo-UsainBolt/

http://list25.com[..]exploration-you-might-not-know/?view=all

http://list25.com[..]sting-facts-about-sunken-ships/?view=all

Largest cities in the world - http://list25.com[..]n-the-world-throughout-history/?view=all

Gold - http://list25.com[..]ings-you-didnt-know-about-gold/?view=all

Israel - http://list25.com[..]ting-and-controversial-country/?view=all

most-important-people-in-history-who-are-drastically-underrated - http://list25.com[..]who-are-drastically-underrated/?view=all

trivia-about-trains - http://list25.com/25-awesome-trivia-about-trains/?view=all

legendary-mythical-weapons - http://list25.com[..]l-weapons-which-shaped-history/?view=all

Boxing - http://list25.com[..]things-you-never-knew-about-it/?view=all

Writing system - http://list25.com[..]that-we-might-never-figure-out/?view=all

lesser-known-but-horrific-war-crimes - http://list25.com[..]ar-crimes-that-might-shock-you/?view=all

Flags - http://list25.com[..]ngs-you-never-knew-about-flags/?view=all

Pilots - http://list25.com[..]ies-and-anecdotes-about-pilots/?view=all

hardcore-people-to-have-ever-lived - http://list25.com[..]core-people-to-have-ever-lived/?view=all

Deadliest wars - http://list25.com/25-deadliest-wars-in-human-history/?view=all

Favorite lanmarks - http://list25.com[..]tion-youve-probably-never-seen/?view=all

symbols - http://list25.com[..]ve-lost-their-original-meaning/?view=all

mother-teresa - http://list25.com[..]esa-and-her-extraordinary-life/?view=all

Bomb - http://list25.com[..]acts-that-are-fairly-explosive/?view=all

byzantine-emperors - http://list25.com[..]-byzantine-emperors-in-history/?view=all

25 Largest And Most Epic Empires In History - http://list25.com[..]d-most-epic-empires-in-history/?view=all

architects-whose-works-are-truly-inspiring - http://list25.com[..]hose-works-are-truly-inspiring/?view=all

unique-winter-traditions-around-the-world - http://list25.com[..]er-traditions-around-the-world/?view=all

most-remarkable-nobel-peace-prize-winners - http://list25.com/25-most-remarkable-nobel-peace-prize-winners/

makeup-history - http://list25.com[..]makeup-history-facts-youll-want-to-know/

common-symbols-and-their-meanings - http://list25.com/25-common-symbols-and-their-meanings/

amazing-battles-in-history - http://list25.com/25-amazing-battles-in-history/

http://list25.com/25-shocking-facts-about-slave-trade/

https://list25.com/25-modern-day-folk-heroes-we-want-to-know/

https://list25.com[..]rs-who-died-horribly-unfortunate-deaths/

https://list25.com/25-most-important-events-in-history/

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Tue Feb 06 11:14:17 HKT 2018 From /weblog/history

hongkong


Childhood memories of 1920s Hong Kong - http://gwulo.com/node/17419

《 香港老字號:廖同合荳品廠 》 - http://www.dcfever.com/column/read.php?id=2095

《 香港老字號:「慈善遮王」何希記造遮 》 - http://www.dcfever.com/column/read.php?id=1975

Tram - gwulo.com/node/19084

Inside Kowloon walled city - http://projects.wsj.com/kwc/#chapter=intro

1957-8: Andrew Suddaby's photos - http://gwulo.com/node/28655

一樓一古:宅在摩星嶺文物屋 - http://hk.apple.nextmedia.com[..]supplement/culture/art/20130527/18272607

Tong Lau / 唐樓, the Hong Kong shophouse - http://gwulo.com/node/34384

Some old color photos - http://gwulo.com/node/34665

【動畫●橫瀾島牛奶叔】最後的燈塔守護者 28年自給自足最開心 - http://hk.apple.nextmedia.com[..]om/realtime/supplement/20161125/55956449

中環卅間唐樓-鬧市中的迷樣建築群 - https://thestandnews.com/city/中環卅間唐樓-鬧市中的迷樣建築群/

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Tue Feb 06 00:00:21 HKT 2018 From /weblog/database/performance

Note of SQL performance tuning


Note of this book - http://www.ocelot.ca/tuning.htm

1) Order of "and" and "or" is matter, if no cost-base optimizer

where column1 = 'a' and column2 = 'b' -> where column2 = 'b' and column1 = 'a' if column2 'b' is less likely

2) <> is more expensive than =

3) Can force to use index if SELECT * FROM table WHERE indexed_column > 0

4) UPPER(column) might lose information, use LOWER is better

5) WHERE column = 'WORD' or column = 'word' is always faster than WHERE LOWER(column) = 'word' , even faster version is test if database if case-insensitive: WHERE column = 'WORD' or ('WORD' <> 'word' AND column = 'word')

6) 32bit integer is the fastest datatype for 32bit OS

7) column in (?, ?) is faster than column =? or column = ? for some database, and don't slow in any database

8) For aggregate functions, prevent using having, try to use fewer columns in group by and use subquery if possible

9) In fact, count(1) is not faster than count(*)

10) CAST before aggregate function: SELECT CAST(SUM(column) AS INT) -> SELECT SUM(CAST(column as INT))

11) Use constant as much as possible, e.g.: select * from t1, t2 where t1.c1 = t2.c1 and t1.c1 = 1 -> select * from t1, t2 where t1.c1=1 andn t2.c1=1

12) Information of Join vs Subqueries

13) Information of optimum column type (VARCHAR, TIMESTAMP, WORD size INT and CHAR(1) usually better), shift effect for page

14) prevent NULL for porting issue

15) Low level table physical information

Some related links - http://www.techartifact.com[..]9/12/sql-optimization-tipsquestions.html

16) Prevent database level transaction, prevent joining, prevent locking ( like auto increment key ), pretty good suggestion - http://www.aviransplace.com/2015/08/12/mysql-is-a-great-nosql/

17) Reduce dataset for aggregation - https://www.periscopedata.com[..]-subqueries-to-count-distinct-50x-faster

Few good tips, like avoid cursors - http://www.javaworld.com[..]ent/21-rules-for-faster-sql-queries.html

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Mon Feb 05 23:07:51 HKT 2018 From /weblog/database/vendor

mssql


SQL 2005 JDBC fix the resultset re-read throws exception problem. However, you need to use executeUpdate() for insert,update and delete instead of execute() for SQL 2005 JDBC, otherwise will throw exception on this.

Other that, statement.executeBatch() will throws exception: http://lab.msdn.microsoft.com[..]kid=e13a8009-7466-4803-ba19-6bfd4b5f8966

New function of SQL server 2014, In-Memory Optimization tables, suppose to be faster? - http://www.infoq.com/news/2013/09/MOT-Indexes MOT table also support native compiled query - http://www.infoq.com/news/2013/09/Compiled-Queries , and lock free write? http://www.infoq.com/news/2013/09/Lock-Free-Writes

From microsoft, Use the columnstore index to achieve up to 10x query performance gains over traditional row-oriented storage, and up to 7x data compression over the uncompressed data size. - http://www.infoq.com/news/2013/09/Clustered-Columnstore

A tool from M$ to help sql server user to manage change of database: http://msdn.microsoft.com/vstudio/teamsystem/products/dbpro/ . Other similar product is DBGhost, also only work for SQL server http://www.innovartis.co.uk/home.aspx

There is a free version of SQL server 2005 call SQL server express, which just like MSDE http://www.microsoft.com/sql/editions/express/redistregister.mspx

Here is a comparison: http://www.sqlmag.com[..]le/ArticleID/49618/sql_server_49618.html , may be we can use that instead of MSDE 2005 and discoutinue support of SQL server 2000 so that we can test one thing less?

Import CSV to SQL server - http://www.sqlservercurry.com[..]oad-comma-delimited-file-csv-in-sql.html

Shriking DB cause performance problem... not sure how long this finding is hold - http://blog.sqlauthority.com[..]eases-fragmentation-reduces-performance/

http://beyondrelational.com[..]ver-storage-internals-part-1-basics.aspx

Get the metadata - http://gigi.nullneuron.net[..]-metadata-from-sql-server-catalog-views/ https://simpleprogrammer.com[..]icrosoft-sql-server-metadata-developers/

Date functions - http://www.essentialsql.com[..]roduction-to-sql-servers-date-functions/

Enhancement of 2016 - https://www.infoq.com/news/2016/06/SQl-Server-2016-Performance

Tool to rescue sql server - https://www.infoq.com/news/2017/02/SQL-First-Responder https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit http://firstresponderkit.org/

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Mon Feb 05 18:14:08 HKT 2018 From /weblog/entertainment

music


Prince - http://list25.com[..]-the-artist-you-knew-as-prince/?view=all

elvis-presley - http://list25.com[..]ting-facts-about-elvis-presley/?view=all

george-michael - http://list25.com[..]-not-know-about-george-michael/?view=all

【傾聽音樂】中世紀音樂是宗教的奴僕,還是高貴的婢女 - https://thestandnews.com[..]%98%E8%B2%B4%E7%9A%84%E5%A9%A2%E5%A5%B3/

不曾用西洋曲式寫流行曲的-創作歌手-朱頂鶴 - https://thestandnews.com/culture/不曾用西洋曲式寫流行曲的-創作歌手-朱頂鶴/

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