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So, you've just begun your road trip with some friends when you decide to read a book in the back seat.
But after only moments of reading, you start feeling dizzy, fatigued and nauseous.
Sounds like motion sickness...
The surprising truth is that about 30 percent of the population experiences motion sickness
with over 66 percent of people experiencing it in extreme conditions.
This happens when your eyes and inner ear are sending different signals to the brain.
The vestibular system inside your ear contributes to balance and spatial orientation.
Tiny hairs inside the canal detect the movement of a fluid inside it
allowing you to orient yourself.
If you lean to the side, the fluid moves and signals are sent to your brain to help you understand this.
But oftentimes, in a car, on a boat, or in the IMAX theatre
your vestibular system is transmitting a different signal from your other senses.
In the case of your car, your eyes see that everything in the car is seemingly stationary,
particularly when you stare at a book.
But your ears feel the movement of the car.
Conversely, in the IMAX theatre, your eyes see a lot of motion while your ear is experiencing very little movement at all.
This mismatch of signals tells the brain something's wrong.
So why does it induce vomiting?
The leading theory suggests that, evolutionarily, if the input signals from your ears and eyes weren't matching,
you'd likely ingested a neurotoxin.
The easiest way to get rid of it? Throw it up.
This was a fairly useful and accurate system before the advent of technology and advanced transportation.
Too bad the brain never got the memo.
Got a burning question you want answered?
Ask it in the comments or on Facebook and Twitter.
And subscribe for more weekly science videos.
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所以...暈車是什麼? (Motion Sickness - What is it?)

59120 分類 收藏
VoiceTube 發佈於 2017 年 3 月 22 日   Yvonne ,Lin 翻譯   Mandy Lin 審核

影片簡介

大家平常在車子裡會習慣玩手機或看書嗎?真佩服那些可以在車上看完一本書的人,小編光看一則手機簡訊就開始暈了,到底為什麼在車上做事會容易頭暈呢?就讓我們來一探究竟吧!

1motion0:10
motion 的意思為「動作」,可作為可數名詞與不可數名詞。
She made a small motion with her hand to send a message.
她利用手部的小動作傳遞訊息。

She sensed motion behind her so she turned around to see if anyone was following her.
她感覺到背後有動靜,所以她轉身看有沒有人在跟蹤她。


電影的「慢動作特效」就是 slow motion
The film started off with a man running in slow motion.
那部影片的開頭出現一個以慢動作跑步的男人。


motionless 則指「不動地」。
The news was so shocking that she stood motionless after hearing it.
那個新聞/事件太震驚了,她聽完後就站在原地不動。


2extreme0:19
extreme 在片中作為形容詞用,指「極端的」。
Global warming has caused extreme climates all around the world.
全球暖化造成全球各地出現極端氣候。


此字亦可用作名詞,指「極端」。
The two extremes of the leadership style spectrum are the autocratic type and the group-based type.
領導風格數線的兩端分別為獨裁風格與團隊導向風格。


副詞為 extremely,指「非常地、極度地」。
He was extremely unhappy about the situation.
他對那個狀況非常不滿。


go to extremes 就是指「極盡或超出所能(以達到一個目標)」。
He went to extremes to take vengeance on his father's murderer.
他用盡一切手段來復仇殺害他父親的人。


*同場加映:
【TED】Matthew Childs 從攀岩中學到的九個人生課題Matthew Childs' 9 life lessons from rock climbing


3induce1:06
induce 的意思為「誘導、導致」。
I wonder what induced her to spend her life's saving on a necklace.
我很好奇是什麼誘導她把畢生積蓄花在一條項鍊上。


另一個意義類似的字為 seduce,然 seduce 指「引誘、誘惑、勾引」,帶有負面意思。
She has managed to seduce ten married men in the office.
她在辦公室成功勾引到了十個已婚男士。


邏輯中的「歸納法」為 inductive reasoning,「演繹法」則為 deductive reasoning
Unlike in deductive reasoning, imperfection can exist and inaccurate conclusions can occur in inductive reasoning.
歸納法與演繹法不同之處在於歸納法推論中可能會有瑕疵,結果也未必正確。


4get rid of1:16
get rid of 指「除去、擺脫」,為口語中常用片語。
It's about time to get rid of our old furniture.
現在差不多是清除我們的舊傢俱的時候了。


另一個意思相似但較為正式的片語為 dispose of
Please take some time to read the instructions on how to safely dispose of expired pills.
請花一些時間閱讀如何安全處置已過期藥丸方法的說明。


*同場加映:
咖啡:最難解的癮 Coffee: The Greatest Addiction Ever


原來如此...短短一分半的影片解答了我長久以來納悶的問題!容易暈車的人,還是放下手機或書本,看看車窗外的風景吧~因為風景是永遠看不完的!

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