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Mon Aug 09 11:02:26 AEST 2021



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Fri Nov 19 23:51:02 AEDT 2021 From /weblog/history

hardware


A History of Hard Drives - https://www.backblaze.com/blog/history-hard-drives/

【Lynn 寫點科普】你知道你正在用的電腦是 70 年前發明的馮紐曼架構嗎? - https://www.inside.com.tw/2017/06/05/von-neumann-architecture

A Brief History of FPGA - https://makezine.com/2019/10/11/a-brief-history-of-fpga/

The Big Boys Move In — A Moment in the History of the Computer: the Coming of the IBM PC - https://medium.com[..]er-the-coming-of-the-ibm-pc-631fa8ea0c36

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Fri Nov 19 01:06:58 AEDT 2021 From /weblog/hack+and+faq

aws


s3 tutorial - https://www.javacodegeeks.com/2017/03/amazon-s3-tutorial.html

How to Create an AWS EC2 VM - https://mydeveloperplanet.com[..]m/2021/06/09/how-to-create-an-aws-ec2-vm

Sample of running "gem" to build:

sudo amazon-linux-extras install ruby2.6 // use sudo amazon-linux-extras list to check the exact name
sudo yum -y install ruby-devel
sudo yum -y groupinstall 'Development Tools'
gem install fluent-plugin-s3 --no-document


Infrastructure as Code - Full Course - https://www.freecodecamp.org/news/what-is-infrastructure-as-code/

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Fri Nov 19 01:04:01 AEDT 2021 From /weblog/history

africa


http://list25.com[..]ieces-of-egyptian-architecture/?view=all

Egypt - http://list25.com[..]t-not-know-about-ancient-egypt/?view=all http://list25.com[..]ight-leave-you-a-bit-surprised/?view=all

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

“Our world is moved by the minerals of the Congo,” says Mombilo. “The positive thing I can say is that in all these advanced technologies, you’re talking about the Congo.” - https://www.bbc.com[..]orgotten-mine-that-built-the-atomic-bomb

來自非洲,卻征服全世界的神奇植物「可樂果」 - https://dq.yam.com/post.php?id=12830

King Tut's grandparents were Egypt's royal power couple - https://www.nationalgeographic.com[..]rents-tiye-amenhotep-egypt-royal-couple/

Ebou Janha, 102, is the only surviving veteran of 1 Gambia Regiment, which fought for the British against Japanese troops in then-Burma during the Second World War. - https://www.aljazeera.com[..]f-africas-forgotten-army-gambia-and-wwii

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Fri Nov 19 01:03:25 AEDT 2021 From /weblog/health

sleep


Are we really need 8 hours of sleep? http://www.bbc.co.uk/news/magazine-16964783

Find the best sleep position - http://cn.wsj.com/big5/20130208/PHO221844.asp http://cn.wsj.com/big5/20130208/hea083626.asp

Take a nap is good! - http://cn.wsj.com/big5/20130917/ATG133550.asp

Why it is good to sleep together - http://cn.wsj.com/big5/20131107/hea080252.asp

中老年人怎樣睡個好覺? - http://cn.wsj.com/big5/20140325/hea120959.asp

Facts about sleep - http://www.damncoolpictures.com[..]nsane-facts-about-sleep-infographic.html

關注男士健康 側身睡覺有利養肝 - http://www.healthcare-kingdom.com[..]6%BA%E6%9C%89%E5%88%A9%E9%A4%8A%E8%82%9D

We all know that kind of situation very well. You are supposed to work or study but you cannot help dosing off. Sometimes, staying awake can be a real challenge; especially if you are tired or bored. Fortunately, there is a surprisingly wide range of various tricks and hacks to help you fight the annoying drowsiness. Here are 25 Ways To Stay Awake When All You Want To Do Is Sleep. - http://list25.com[..]-awake-when-all-you-want-to-do-is-sleep/

At least 7 hours sleep.... - http://www.mr-sport.com.tw[..]-health-life/news/sleep-or-exercise.html

http://list25.com[..]ch-might-help-you-sleep-better/?view=all

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

http://super-memory.com/articles/sleep.htm

about-sleep-paralysis - http://list25.com[..]p-paralysis-that-make-it-scary/?view=all

Power nap - https://www.nytimes.com[..]ke-naps-at-work-apologize-to-no-one.html

http://www.zmescience.com/medicine/why-you-feel-cold-always-0232

The shorter your sleep, the shorter your life: the new sleep science - https://www.theguardian.com[..]-worst-enemy-matthew-walker-why-we-sleep http://www.chicagotribune.com[..]we-sleep-matt-walker-20171003-story.html

https://journal.thriveglobal.com[..]com/jeff-bezos-sleep-amazon-19c617c59daa

http://www.npr.org[..]king-through-life-in-an-underslept-state

How to take nap - http://cn.wsj.com/big5/20171024/LIF172127.asp?source=rss

10 things to know about sleep as the clocks go back - http://www.bbc.com/news/health-41666563

https://www.zmescience.com[..]-deprivation-anxiety-depression-08012017

Do and Don't after sleep bad night - https://www.webmd.com[..]p-disorders/ss/slideshow-sleep-bad-night
https://www.webmd.com[..]ders/ss/slideshow-natural-sleep-remedies
https://www.webmd.com/sleep-disorders/ss/slideshow-sleep-foods

https://list25.com/25-crazy-facts-about-sleep/

Naps help us process information we subconsciously acquire during the day - https://www.zmescience.com[..]nce/short-subconscious-information-9543/

https://www.zmescience.com[..]nce/sleep-brainwave-reactivation-9236363

Only sleep and sex at bed - https://getpocket.com/explore/item/how-i-finally-learned-to-sleep

https://www.zmescience.com[..]/science/sleep-exam-results-mit-1342424/

https://www.webmd.com[..]science-19/biology/interact-sleep-cycles

10 Foods That Fight Pain - https://www.webmd.com[..]management/ss/slideshow-foods-fight-pain

https://www.mattressnerd.com/polyphasic-sleep/natural-sleep-aids/

Sleep jerks - https://elemental.medium.com[..]-while-you-drift-into-sleep-88f8d28d643a

壓力,睡眠不足可能會導致腦震盪狀症狀 - https://www.zmescience.com[..]ck-of-sleep-concussion-symptoms-9726424/

【Wired 硬塞】明知不可為,為什麼你還是愛熬夜? - https://www.inside.com.tw[..]87-sleep-procrastination-psychology-tips

Why Do We Dream? The Role Of Dreams - https://spiritanimaldreams.com[..].com/why-do-we-dream-the-role-of-dreams/

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-bizarre-facts-about-lucid-dreaming/

Nightmares - https://www.webmd.com[..]disorders/ss/slideshow-nightmares-causes https://list25.com/25-most-common-nightmares-everyone-hates/

An Insomniac’s Guide to Dehumidifiers - https://deye.com/an-insomniacs-guide-to-dehumidifiers/

We undergo sleep paralysis every night and don't notice it -- unless we're awake when it happens. - https://www.zmescience.com[..]enomenon-at-the-boundary-of-wakefulness/

Going to sleep before 10 PM could lower your risk of heart disease - https://www.zmescience.com[..]ne/sleep-earlier-heart-disease-11112021/

Consuming a diet higher in plant food and fibre, and lower in saturated fat and sugar, seems to be associated with better sleep – Marie-Pierre St-Onge - https://www.bbc.com[..]does-cheese-really-give-you-vivid-dreams

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Fri Nov 19 01:01:48 AEDT 2021 From /weblog/trip/travelling

China


黃山白雪 snow trip - http://go2nature.net/forum/viewtopic.php?p=1118410

鹦哥岭 http://jingdian.tuniu.com/fengjing/20005

Collection of travelling stories - http://www.dchome.net[..]y=lastpost&ascdesc=desc&searchsubmit=yes

***老虎走遍韶關***:“九峰花海、五山雲海”-20120318鐵驢美麗樂昌探路行圖記 - http://bbs.sg169.com[..]cript/forum/view.asp?article_id=32159756

縱橫廣東-賞花之旅(圖文分享) - http://go2nature.net/forum/viewtopic.php?p=1175628#1175628

二零一一年十二月,雲之南 - http://go2nature.net/forum/viewtopic.php?p=1177984#1177984 http://go2nature.net[..]t=0&sid=23fee3b247c030928b3cbdeb22a7c8de

二零一二年四月,荊楚之旅 - http://go2nature.net/forum/viewtopic.php?p=1188875#1188875 http://go2nature.net/forum/viewtopic.php?p=1193096#1193096

探尋潘家口水庫中的長城需要頑強的毅力、良好的視力和一副潛水面罩。1976年唐山大地震後,中國修建了潘家口水庫(水庫位於北京東北方向150英裡處),許多殘敗的村莊因此被淹,半英裡長(約合805米)的長城 體也沒入了水中。 - http://cn.wsj.com/big5/20120924/ahd072013.asp?source=rss

和順順和 - http://go2nature.net/forum/viewtopic.php?p=1206876 http://go2nature.net/forum/viewtopic.php?p=1209760 http://go2nature.net/forum/viewtopic.php?p=1208602

Huashan Mountain - http://www.damncoolpictures.com[..]rlds-most-dangerous-hiking-trail_16.html

2012.10 雲南之旅 Part II - 怒江大峽谷 - http://go2nature.net/forum/viewtopic.php?p=1211959#1211959

墨脱县 - https://www.google.com/search?q=墨脫

經典“白天鵝”裡的經典菜 - http://cn.wsj.com/big5/20121231/DZX090515.asp?source=rss

Bus trip at China - http://www.chinahush.com[..]02/08/brother-public-transits-trip-home/

廣東五邑 - http://thehousenews.com[..]%97%E5%B8%AB%E5%8F%96%E6%99%AF%E5%9C%B0/

贡嘎西南 - http://blogs.exmertec.com/elvis/entry/11

深圳塘朗山 - http://www.discuss.com.hk/viewthread.php?tid=22599363

广东省普宁市 - http://baike.baidu.com/view/89542.htm

新疆 - http://thehousenews.com[..]%87%E6%88%91%E7%9A%84%E6%83%85%E7%B7%A3/ http://thehousenews.com[..]%B2%E5%85%A5%E7%BE%85%E5%B8%83%E6%B3%8A/ http://thehousenews.com[..]or/%E6%96%B0%E7%96%86%E8%80%81%E5%A7%9A/

【遊內蒙】千軍萬馬祭敖包 顯蒙古男兒本色 - http://hk.apple.nextmedia.com[..]om/realtime/supplement/20140729/52742618

甘肅省張掖市臨澤與肅南縣境內的張掖丹霞國家地質公園 - http://www.dcfever.com/news/readnews.php?id=12304&link=guid http://www.mymodernmet.com[..]ational-geological-park-landscape-photos

江西三清山 - http://go2nature.net/forum/viewtopic.php?p=1285767#1285767

神仙彼岸 - 普達措 - http://www.dcfever.com/travel/article.php?id=3822

女兒國瀘沽湖 - http://www.dcfever.com/travel/article.php?id=3806

漫步重慶,尋一場陪都新夢 - http://www.dcfever.com/travel/article.php?id=3993

【中國西部】絕美景點不藏私:給攝影愛好者的天堂旅行路線! - http://blog.kkday.com/2016/06/WestChina.html

http://blog.kkday.com/2016/10/greatwall.html

一次東北之旅,你能看到怎樣的「滿洲」? - https://theinitium.com/article/20170804-initium-travel-manchu/

Native white people in China - https://www.google.com.hk[..]1%94%E4%BB%80%E5%BA%AB%E7%88%BE%E5%B9%B2

喀什位處古絲綢之路南北兩道交會點,在2,100餘年前便是中國與西方經濟、文化交流的重要門戶,商貿往來繁盛一時。 - https://dq.yam.com/post.php?id=8347

即將消失的全球最大藏學院——色達 - http://sportsroad.hk/archives/180086

莫莫格國家級自然保護區位於吉林省白城市鎮賚縣,地處松嫩平原西部,是典型的濕地類型保護區。

Gaoligong Shan - https://www.nationalgeographic.com[..]s-one-of-the-last-vaults-of-biodiversity

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Fri Nov 19 00:58:32 AEDT 2021 From /weblog/society

environmental


碳排放 (能源消耗), 增加定減少? (改了題, 本為:環保意識弱 學生穿毛衣開冷氣) - http://go2nature.net/forum/viewtopic.php?p=1267162#1267162

We’ve collected puzzling recycling questions from children around the country. The answers could help your family understand the process better. - https://www.nationalgeographic.com[..]kids-really-want-to-know-about-recycling

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Fri Nov 19 00:10:00 AEDT 2021 From /photo/cosmos/apod

Geminids2020_WangJin_2322



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Fri Nov 19 00:04:35 AEDT 2021 From /photo/cosmos/apod

NGC3314_HubbleOstling_2014



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Wed Nov 17 00:48:07 AEDT 2021 From /photo/cosmos/apod

EtnaLightPillar_Tine_5100



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Wed Nov 17 00:06:24 AEDT 2021 From /weblog/history

HK


【消失中的香港】尋找深水埗碼頭原址 - https://www.thestandnews.com[..]F%97%E7%A2%BC%E9%A0%AD%E5%8E%9F%E5%9D%80

【消失中的香港】尋找沙田畫舫原址 - https://www.thestandnews.com[..]4%B0%E7%95%AB%E8%88%AB%E5%8E%9F%E5%9D%80

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Tue Nov 16 00:27:23 AEDT 2021 From /weblog/photographic/tutorial

Astronomy


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

【星空系列教程】銀河及地景拍攝技巧
https://digiphoto.techbang.com[..]ot-to-ensure-the-star-series-tutorial-on
https://digiphoto.techbang.com[..]and-landscape-shooting-techniques-middle

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 Master Night Sky Photography - https://www.lightstalking.com/night-sky-photography/

How to Photograph the Northern Lights (Aurora Borealis)? - https://www.mikkolagerstedt.com[..]raph-the-northern-lights-aurora-borealis

4 Easy Steps to Edit Astrophotography in Lightroom - https://www.mikkolagerstedt.com[..]ow-to-edit-astrophotography-in-lightroom

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Mon Nov 15 11:33:24 AEDT 2021 From /photo/cosmos/apod

67P_211107



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Sun Nov 14 15:46:05 AEDT 2021 From /gallery/AU/The+skillion

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Sun Nov 14 15:45:31 AEDT 2021 From /gallery/AU/The+skillion

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Sun Nov 14 15:45:17 AEDT 2021 From /gallery/AU/The+skillion

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Sun Nov 14 15:43:20 AEDT 2021 From /gallery/AU/The+skillion

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Sun Nov 14 15:43:15 AEDT 2021 From /gallery/AU/The+skillion

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Sun Nov 14 15:43:10 AEDT 2021 From /gallery/AU/The+skillion

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Sun Nov 14 15:43:03 AEDT 2021 From /gallery/AU/The+skillion

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Sun Nov 14 15:42:59 AEDT 2021 From /gallery/AU/The+skillion

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Sun Nov 14 15:29:35 AEDT 2021 From /gallery/AU/The+skillion

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Sun Nov 14 15:29:31 AEDT 2021 From /gallery/AU/The+skillion

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