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Give me a standpoint and I will move the earth. ...Archimedes (287-212BC)
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Author Topic: why do we use white paper and black pen ?  (Read 19782 times)
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didi
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on: October 17, 2005, 05:07:21 pm » posted from:Farsta,Stockholms Lan,Sweden

White letters in a black paper, if the all books and news paper are like this would it be easier for us to read or opposite? I think it is definitely very tiring to read.
Why is that?
Black colour reflects very little light but we read the white part.
Are our pupil open wider when the background is black even though the atmosphere is bright?
Anyone has any good answer?
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Fu-Kwun Hwang
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Reply #1 on: October 18, 2005, 08:19:00 am » posted from:Taipei,T'ai-pei,Taiwan

We can read white character on black paper easily. I think our eye will get used to it whatever was provided.

It is just more difficult to make black paper (which absorpt all the light).
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sunilbalani
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Reply #2 on: January 06, 2008, 01:41:04 pm » posted from:Jodhpur,Rajasthan,India

white colour is a good reflector while black a good absorber. This provides a better contrast.A black sheet in white lit room is certainly more conspicuous than a white sheet in dark room.
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Give me a standpoint and I will move the earth. ...Archimedes (287-212BC)
 
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