Cât de greu e aerul – TED-Ed


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.


Resurse Sanatate

De ce antibioticele nu mai fac față? TED-Ed

View full lesson:…

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.



163. Veniți după Mine