Pentatonic scale is a musical scale made by a set of 5 tons or pitches. It is found all over the world from USA to Japan, from rock to erudite music. Bob McFerrin, a famous musician, demonstrates the universal understanding of the pentatonic scale in World Science Festival, New York. Here you can watch the whole discussion including several neuro-scientists, in a session called Notes and Neurons. Must see.
Pentatonic scale is a musical scale made by a set of 5 tons or pitches. It is found all over the world from USA to Japan, from rock to erudite music. Bob McFerrin, a famous musician, demonstrates the universal understanding of the pentatonic scale in World Science Festival, New York. Here you can watch the whole discussion including several neuro-scientists, in a session called Notes and Neurons. Must see.
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It is amazing to know, but not surprising, that we evolved in a such way to spend as few energy as possible. Walk and run is one the activities where we spend lots of energy and in order to avoid waist we swing our arms synchronized with our legs naturally. Watch this video and discover how to spend up to 26% more energy just walking "out of phase". Unfortunately researchers did not tested the really weird silly walks done by Monty Python's John Cleese at this video. Certainly those silly walks spends more than that.
Source: guardian.co.uk
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Image from Sixtysymbols' photostream
Scientists at University of Nottingham made a page with all chemical elements commented in video by researchers. They explain in very easy non-technical short videos a little about history and properties of each element in the periodic table. They also made a cool page with sixty symbols of physics and astronomy . Though not all symbols presented there are mathematical symbols they represent one specific major event or feature in physics or astronomy. By the way, the video about the infinity symbol is amazing.
Enjoy it!
www.periodicvideos.com
www.sixtysymbols.com
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We are getting closer to a new kind of computer and its processor is NOT made with silicon. Scientists solved a mathematical problem with a bacteria colony. And they are not special just ordinary bacteria. The mathematical problem solved is known as Burnt Pancake sort problem. Imagine you have a stack of several pancakes and each one has a different size. You have to pick up one by one with a spatula and the one in bottom is burnt. The burnt pancake never gets back to the bottom position again. Pancake flipping is also not allowed. Using E. coli DNA machinery they solved this problem. This is not a very complex problem but this new way opens doors to bacterial computers and better manipulation of the DNA.
Source: ScienceDaily.com
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