Posts

  • 2017-11-30 04:00:00 +0000 | Source | Signature

    Scheduled downtime: 2017-12-06T10:00+08:00/PT3H30M

    Reason: scheduled power supply downtime

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  • 2017-11-27 00:10:00 +0000 | Source | Signature

    Hyperreal android Asuna

    “Meet Asuna, the hyperreal android that will leave your jaw hanging 【Video】” – SoraNews24

    Two years ago, I watched Chobits and thought this was a great idea.

    Two years later, I watched Plastic Memories.

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  • 2017-11-22 08:44:00 +0000 | Source | Signature

    \( \bar{X} \leq \max(X) \)

    RTHK news screenshot

    Theorem. The mean of two real numbers is less than or equal to the maximum of these numbers.
    Proof. The proof is left as an exercise to RTHK journalists. ∎

    (The article actually says “far less than”, but this is not reflected in the title.)

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  • 2017-10-16 01:00:00 +0100 | Source | Signature

    Comments on comments on Stand News article 《我，數學，攞二，入咗，港大》

    Not much to say about the article; the comments, though, are another story. Don’t really want to organize my points well, and definitely not interested in online word battles, so I’m just posting them here.

    Quintin Lam 數學攞Lv.2入到香港大學更能反映香港重文輕理的白痴教育制度。

    利申中文2咗所以乜春都入唔到

    Belinda Chan 無語文表達就算數學家發表咩偉論都要人地明

    So many things wrong in just one sentence.

    1. A lot of mathematics is communicated via standard (or de facto standard) notations; even when the grammar is not correct the idea is often understandable. In contrast, get some language professors to read some mathematics research papers. I bet you a nickel they don’t get shit.
    2. A society consists of many people, each with different roles. Suppose a mathematician wants to spread some idea, but he has terrible language skills. He can simply find another person who can understand him and is better at languages to help him.
    3. HKDSE Chinese exams consist of not only the use of the language, but also the analysis and appreciation of literature, and the composition of fictional stories. Contrast with HKALE Use of English. (I have not actually looked at Use of English past papers or syllabuses; this statement is made on the assumption that the subject was called “Use of English” and not “English” for a logical reason.)

    Ken Chan 因為以工程師為例你整完一件product都要寫份靚靚仔仔嘅report 出嚟比你老闆睇，語文唔掂嘅話分分鐘份report會煩過你整個product

    There are many types of engineers, not all of them have to submit very well-written (in terms of language use) reports to their bosses. For some jobs it may be more important to be able to draw accurate diagrams, as long as the language is understandable. Cf. point 2 above – a company consists of many people.

    熊明德 - 阿臣 Bearsniffsonsociety 中、英文係溝通用、表達思考嘅工具， 考試成績太弱係好難說服人哋你有「基本語文能力」。

    Except the use of languages (esp. Chinese) is not the main point of the HKDSE exams – see point 3 above.

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  • 2017-10-12 00:00:00 +0100 | Source | Signature

    施政報告——智慧城市

    《行政長官2017年施政報告》第80(1)段話要「為所有香港居民提供『數碼個人身分』， 讓市民能以單一的數碼身分和認證進行政府和商業的網上交易」（節錄）喎。 大佬連政府網上啲新聞公報都冇digital signature 冇https，市民睇政府新聞稿 核實唔到真偽，你仲講得出要幫所有市民出cert，細佬真係拜服拜服。

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  • 2017-09-23 11:00:00 +0100 | Source | Signature

    十次喇 | Ten Times

    10 times cert
    (Signature)
    regular blood donor badges 2015-2017
    (Signature)

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  • 2017-09-18 05:00:00 +0100 | Source | Signature

    消失的《警察通例》第14章〈物料及配備〉

    比較香港警務處網頁《供公眾查閱的警察通例》之中文及英文版 本，可見英文版目錄列有 “Chapter 14. STORES AND EQUIPMENT” 而中文版目錄 則未列有第14章；惟讀者仍可根據其他章節之超連結格式推斷第14章之URL 並下載該檔案。

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  • 2017-09-13 08:36:00 +0100 | Source | Signature

    塑膠含有氯氣

    港台記者，「塑膠含氯」，同「塑膠含氯氣」，係差好遠㗎喎…

    RTHK news screenshot

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  • 2017-09-06 15:10:00 +0100 | Source | Signature

    Jekyll bug: incorrect timestamp

    Automating the posting process on shitpost, I have discovered a bug in Jekyll. If the post timestamp is exactly the same as the system time (correct to the nearest second), and the jekyll process is running with the --watch flag, then the post will be built with an incorrect timestamp, namely midnight on the current date.

    Example: Having jekyll build --watch running, run the following:

    cat << EOF > _posts/$(date -I)-test.md
---    
layout: post
title: test
date: $(date "+%Y-%m-%d %H:%M:%S %z")
---
test
EOF

    Instead of e.g. 2017-09-06 22:10:00 +0800, the timestamp will show 2017-09-06 00:00:00 +0800.

    Too lazy to write up a formal bug report, I used a sleep 1 as a workaround in my automation script.

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  • 2017-09-04 15:45:00 +0100 | Source | Signature

    Six inches

    Growing up with SI units, the only times I am forced to use Imperial units of length is when I help my parents with their parking.

    Today my father was reversing his car after my mother and I got off. “Half a foot,” I announced as I looked from the side, estimating the distance between the car and the wall. My mother quickly responded, “That’s clearly less, it’s more like three to four inches.”

    After my father got out of his car, I invited him to take a look. “About eight inches to a foot,” he estimated.

    I went inside and took out a tape measure. It was exactly six inches (plus or minus 1/4 inches).

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