Too often we think of air as empty space — but compared to a vacuum, air is actually pretty heavy. So, just how heavy is it? And if it’s so heavy, why doesn’t it crush us? Dan Quinn describes the fundamentals of air pressure and explains how it affects our bodies, the weather and the universe at large.
Lesson by Dan Quinn, animation by Sandro Katamashvili.
View full lesson: http://ed.ted.com/lessons/how-antibio…
Right now, you are inhabited by trillions of microorganisms. Many of these bacteria are harmless (or even helpful!), but there are a few strains of ‘super bacteria’ that are pretty nasty – and they’re growing resistant to our antibiotics. Why is this happening? Kevin Wu details the evolution of this problem that presents a big challenge for the future of medicine.
Lesson by Kevin Wu, animation by Brett Underhill.
Pre-ocupari de pre-dicatori
Punem la punct viitorul atunci cand nu ne ocupam de prezent.
UpWords
Ce semnificatie are pentru mine știința secolului XXI
Ortodoxie, analize, documentare, istorie, politica
OPEN YOUR MIND
geometrii tactile, pe figuri desenate într-o ureche
Walking in the Truth
'That I may know Christ and the power of His resurrection. Philippians3:10
Luați cu voi ... puțin leac alinător și puțină miere, mirodenii, smirnă, fisticuri și migdale - Geneza 43:12
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Carti tiparite in 2002,2003 la Multimedia, Arad, de Daniel Branzai, plus alte amintiri
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La Razvi' - Razvan Mihalcea 