physical
An interesting article about the discovery of a new type of electrical device. Based on the equations relating charge and magnetism, Leon Chua deduced that the mathematics of electric circuits was missing an element (one that directly relates charge to magnetic flux) - he dubbed the missing element a memristor.
Now scientists believe they have found a physical device that has this effect ... at nanoscales. The device could have some amazing applications for computation.
1 FaverShareViewed: 4 TimesQuoted: What connects human intelligence to the unsung cunning of slime moulds? An electric component that no one thought existed, explains Justin Mullins
Amazing illustration of a subtle but dangerous effect that can happen when you swim in calm, cold water on a warm day. I've never experienced it, but my old swim coach tells a great story about an ocean race he was in several years ago: a tough few miles in water like this, should have been a breeze for him, ended up putting some fellow swimmers in serious danger.
17 December 2008 - New Scientist
3 FaversShareViewed: 16 TimesQuoted: Expert swimmers who complain that some waters sap their progress even in fair weather may be telling the truth, experiments reveal
Why microscopic black holes are harmless....
1 FaverShareViewed: 7 TimesQuoted: There's a book by Larry Niven called Hole Man, where a group of explorers on Mars come across an alien communications device. One of the scientists thinks
Fascinating... I didn't realize this was a mystery of science.
1 FaverShareViewed: 4 TimesQuoted: Peer into its molecules, and glass is indiscernible from a liquid. So how can it be hard? And how does it get that way? For scientists, the puzzle persists.
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