Wed, May 07, 2014 - Page 10 News List

Nose can detect one trillion odors
鼻子可偵測一兆種氣味

A man smells the aroma of distilled whisky spirit in London on April 24.
一名男子四月二十四日在倫敦聞威士忌識酒香。
Warning: Excessive consumption of alcohol can damage your health.
飲酒過量有害健康

Photo: Bloomberg
照片:彭博社

The human nose can detect one trillion different odors, far more than we previously thought, say US scientists.

Until now, the long-held belief was that we can sniff out about 10,000 smells.

New estimates published in Science suggest the human nose outperforms the eye and the ear in terms of the number of stimuli it can distinguish between.

Researchers at the Rockefeller University say we use only a tiny part of our olfactory powers.

The human eye uses three kinds of light receptors that work together to see up to 10 million colors, while the ear can hear almost half a million tones.

(Liberty Times)

人類的鼻子可偵測一兆種不同的氣味,遠比我們先前認為的還多,美國科學家說。

直到目前為止,長期以來的看法都是我們可以嗅出約一萬種氣味。

刊登在《科學》期刊的新評估顯示,就可分辨的刺激物數量而言,人類的鼻子表現比眼睛及耳朵好。

洛克菲勒大學的研究人員說,我們的嗅覺力量只用了很小的一部分。

人類的眼睛使用三種光接收體,合作辨識多達一千萬種顏色,耳朵可以聽到將近五十萬種音調。

(自由時報/翻譯:自由時報國際新聞中心)

TODAY’S WORDS
今日單字

1. sniff v.

嗅;聞 (xiu4; wen2)

例: He sniffed his socks to see if they needed washing.

(他聞了聞襪子,看是不是需要洗。)

2. outperform v.

表現超越 (biao3 xian4 chao1 yue4)

例: The car engine has consistently outperformed its rivals this season.

(該車引擎本季表現持續勝過對手。)

3. olfactory adj.

嗅覺的 (xiu4 jue2 de5)

例: The olfactory nerve carries the sensory information for the sense of smell.

(嗅神經主要功能是將氣味的感覺傳遞出來。)


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