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2026年8月21日星期五

社交媒體與心理疲勞

When we use social media during our work breaks as a form of distraction, thinking that we are giving our brains a break, our energy resources are, in fact, still being allocated to something that is mentally taxing - getting a kick from doom-scrolling. This leads to cognitive overload, a state where the mind is overwhelmed by excessive information or stimuli, hindering our brain processing.

在工作休息時使用社交媒體並非真正讓大腦休息,因為瀏覽短片、滑動資訊仍然消耗心力。這樣會造成認知過載,即大腦被過多資訊刺激淹沒,導致思考與處理能力下降。

Being mentally taxing means a task or situation drains your brain and focus. It feels like your mind ran a long race, leaving you tired, stressed, or unable to think clearly

Doom-scrolling is the compulsive habit of spending excessive time scrolling through social media or news feeds to read negative, distressing, or alarming content.

incessant: never stopping

Curated content is the process of gathering, organizing, and sharing high-quality material created by others.

architect: a person whose job is designing buildings

treadmill: work or a way of life that is boring or makes you tired because it involves always doing the same things

Mental heuristics are fast "rules of thumb" or cognitive shortcuts that let people make quick decisions, solve problems, and form judgments with little mental energy. Pioneered by researchers like Daniel Kahneman and Amos Tversky, these tools save time, but they can also cause systematic errors or cognitive biases.

ingrained (in somebody/something) (of a habit, an attitude, etc.) that has existed for a long time and is therefore difficult to change

Social media apps use variable reward schedules - like slot machines - triggering dopamine spikes in the brain's reward pathway via likes, notifications, and infinite scrolling of novel content. This loop drives compulsive habits and can lead to a post-scroll dopamine deficit, leaving you feeling drained.

A slippery slope is a bad path or action. Once you start down this path, it is hard to stop. Small problems or choices lead to much bigger trouble.

lull somebody to make somebody relaxed and calm

paradoxically: in a way that seems strange, impossible or unlikely because it has two opposite features or contains two opposite ideas

thrill: a strong feeling of excitement or pleasure; an experience that gives you this feeling

yo-yo: a condition or situation marked by regular fluctuations from one extreme to another

drastically: in an extreme way that has a sudden, serious or violent effect on something

"Low-hanging fruit" is a common business and everyday phrase. It means an easy goal or a simple task that you can finish right now. Just like fruit on the lowest tree branch, these easy wins take very little effort to grab before you try harder work.

Nicole Vignola "Rewire"

hk.dictionary.search.yahoo.com

oxfordlearnersdictionaries.com

www.merriam-webster.com

Google AI overview

Explained by Microsoft Copilot

2026年8月16日星期日

Meaning

On Canon EOS cameras, “Tv” mode means Time Value (shutter‑priority mode). It lets you manually set the shutter speed while the camera automatically adjusts the aperture for correct exposure—ideal for freezing fast action or creating motion blur.

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2026年8月13日星期四

Functions in Python

In Python, the return statement is used inside a function to send a value back to the caller and immediately stop the function’s execution. If no value is specified, Python automatically returns None.

def x():

    return 5

You define a function named x.

Inside the function, the return 5 statement tells Python to immediately stop running the function and send back the value 5.

Whenever you call x(), the function will give you 5.


In Python, the __code__ attribute is a special property of function objects that gives you access to the underlying code object representing the compiled function body.

def add(a, b):

    return a + b


print(add.__code__)  

# Output: <code object add at 0x..., file "script.py", line 1>


print(add.__code__.co_varnames)   # ('a', 'b')

print(add.__code__.co_argcount)   # 2

print(add.__code__.co_filename)   # "script.py"

print(add.__code__.co_name)       # "add"


backslash n
In Python, \n is the escape sequence for a newline character. It tells Python to move the cursor to the next line when printing text.

for punctuation in punctuations:
is a for loop in Python. It means: “Take each element from the list punctuations one by one, and temporarily call it punctuation.”

text = text.replace('\n', ' ')
means: “Take the string stored in text, and replace every newline character (\n) with a space (' ').”
So here, every line break is turned into a space.

def removeShortWords(text):
    return ' '.join([word for word in text.split() if len(word) > 3])
is a list comprehension filter that removes short words (length ≤ 3) from a string.
text.split() → splits the string into words (by spaces). Example: "This is a test"["This", "is", "a", "test"].
[word for word in text.split() if len(word) > 3] → keeps only words longer than 3 characters.
' '.join([...]) → joins the filtered words back into a single string with spaces.

In Python, lambda functions are small, anonymous functions defined with the lambda keyword. They’re often used when you need a quick, throwaway function without formally writing def.

In Python, sorted() is a built‑in function that returns a new sorted list from any iterable (like lists, tuples, or strings). It does not modify the original object — it creates a new one.

Iterable: a programming concept for data collections you can loop through

myList = [{'num': 3}, {'num': 2}, {'num': 1}]
sorted(myList, key=lambda x: x['num'])

The key=lambda x: x['num'] tells Python: “Sort by the value of the 'num' field inside each dictionary.”

lambda x: x['num'] is a small anonymous function that takes each dictionary (x) and returns the value associated with the key 'num'.

A dictionary in Python is a built‑in data structure that stores data as key–value pairs. Think of it like a real dictionary: the key is the word you look up, and the value is the definition you get.

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2026年8月12日星期三

物候學

物候學(Phenology)是一門研究生物季節性現象與環境因子之間關係的科學。它關注的是植物、動物在一年四季中隨著氣候變化而出現的週期性活動,例如開花、結果、遷徙、蛙鳴、昆蟲羽化等。

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忍讓

即使母親多麼的愚昧,

自己都要忍讓,

因為我只有一個媽媽。

攝影構圖

嘗試從漫無目的的主題中擷取較理想的部分來取景。在自己要拍攝的影像上,決定好主要被攝體,並作出能夠突顯主角的構圖配置。

減法構圖適用情況

  • 需要強烈視覺焦點或情感張力時。

  • 背景雜亂或會分散注意力時。

  • 想表現孤立、簡潔或抽象意象時。

與強調主題的減法構圖之逆向思維,就是添加配角的加法構圖。例如稍擴大拍攝範圍,將觀看夕陽的人群一併拍攝下來。

加法構圖適用情況

  • 想呈現場景關係、敘事或情境時。

  • 配角或環境能為主題提供對比、規模或情緒時。

實務建議

  • 先確定拍攝目的:情感、故事、紀實或美感。

  • 根據目的選擇減法或加法,或在同一場景中嘗試兩種做法以比較效果。

  • 注意構圖元素的層次與視覺引導,確保即使加入配角,觀眾仍能自然聚焦於主題。

《完全活用! 構圖曝光大事典: 徹底提昇攝影力的301個致勝技巧》

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Book content and AI information are edited

P Mode

P 模式(Program AE)是一種半自動模式:相機自動設定光圈與快門速度,但你仍可調整 ISO、白平衡、曝光補償、閃光燈等。它比全自動模式更靈活,適合快速拍攝街景、旅行或活動。

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