Science Monday: How many photos have ever been taken?

The science of guessing large numbers is easier than you think

The mad genius Vsauce has posted a video discussing the art of guessing large numbers. He starts by talking about how many photos have been taken since the invention of the photograph to about now.

photostaken590.jpg

It's a pretty big number, but getting to that number is more interesting, as he then delves into the mathematics and science behind the wisdom of crowds, and how connected we are to each other (via Facebook or other networks). Great stuff!

Now the big plan is to try and figure out how to win those jelly bean contests.

Keith Shaw rounds up the best in geek video in his ITworld.tv blog. Follow Keith on Twitter at @shawkeith. For the latest IT news, analysis and how-tos, follow ITworld on Twitter, Facebook, and Google+.

Watch some more cool videos: Science Monday #1: Why it's dark at night BBC gives Doctor Who fans an Amy/Rory postscript The best remote-control car chase ever Science Monday: Origins of Quantum Mechanics in under 5 minutes Motion-copy robot can mimic painting brush strokes

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