Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts
Saturday, April 30, 2016
Monday, August 3, 2015
Saturday, May 25, 2013
Monday, April 22, 2013
Friday, November 16, 2012
Thursday, August 30, 2012
Monday, August 13, 2012
Sunday, July 29, 2012
Friday, July 13, 2012
Friday, May 4, 2012
Friday, April 27, 2012
Saturday, February 18, 2012
Tuesday, January 3, 2012
What you see
Hold a match horizontally before a mirror. If the match’s head is to the right, then so is that of its reflection — the match is not reversed left to right. But now hold up the matchbox. Its writing is reversed. Why?
“Here is a related puzzle,” writes psychologist Richard Gregory in Mirrors in Mind (1997). “Hold a mug with writing on it to a mirror. What do you see in the mirror? The reflection of the handle is unchanged — but the writing is right-left reversed. Can a mirror read?!”
Sunday, January 1, 2012
Wednesday, October 12, 2011
The sun is not yellow
"I don't care what else anyone has ever told you, the Sun is white, not yellow. Human color perception is a complicated business, but if the Sun were yellow, like a yellow lightbulb, then white stuff such as snow would reflect this light and appear yellow — a snow condition confirmed to happen only near fire hydrants."
Neil DeGrasse Tyson
planetary.org
Sunday, October 9, 2011
Sunday, October 2, 2011
Saturday, October 1, 2011
Friday, September 30, 2011
Wednesday, September 28, 2011
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