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27 July 2012

Femto-photography


Published on Jul 26, 2012 by TEDtalksDirector
http://www.ted.com "Ramesh Raskar presents femto-photography, a new type of imaging so fast it visualizes the world one trillion frames per second, so detailed it shows light itself in motion. This technology may someday be used to build cameras that can look "around" corners or see inside the body without X-rays."

Ramesh Raskar is Associate Professor of Media Arts and Sciences and Co-Director, Center for Future Storytelling at MIT.

Did you see the moment in the video where "Femto" is explained? 
"Femto- (symbol f) is a prefix in the metric system denoting a factor of 10−15 or 0.000000000000001. Adopted by the 11th Conférence Générale des Poids et Mesures,[1] it was added in 1964 to the SI.[2] It is derived from the Danish word femten, meaning "fifteen"." (Wikipedia)  

Most of us at ISOCS can count up through this chart past kilo and giga, to tera (because of computer storage now being in terabytes, and back at least to deci, centi, and probably milli, because that's how drinks are sold, in fractions of liters.  Now it's time to learn some new prefixes.

Screen shot of http://en.wikipedia.org/wiki/Femto-
click on the image to see it full size