Microgravity refine everything . Much of our sense of “ how matter work ” is influenced by somberness . Don Pettit uses a soldering iron to boil water , and we see how it both is and is n’t dissimilar from a pot and stave in on Earth .
This is pretty cool . Don Pettit guides us through boiling water in microgravity . We ’ve figure that well - understood phenomenon can behave very other than with the gravity turned down . A candle flamedoesn’t take on its conversant unfold oval and does n’t burn as live , because red-hot atmosphere does n’t rise up and stretch the flaming , and coolheaded air does n’t cannonball along in and execute the fire .
Pettit first shows us a soldering iron heating up water that ’s stretched over a hoop like a house of cards wand . Convection causes the fluid to move , whisk raging fluid and the bubble created inside it away from the iron , and peril cooler water to the hot branding iron .
Then Pettit shew us a drop of water on the soldering iron , and explain how the convection does the same affair . Bubbles cast , move away from the iron and out towards the side of the driblet , occasionally popping on the surface . It looks astonishingly like the way water back on Earth would roil .
PhysicsScience
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