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Here's liquid nitrogen turning into solid nitrogen in an extreme vacuum

What happens when you put liquid nitrogen in a vacuum chamber? It turns solid. And then it snows. As the vacuum lowers the pressure in the chamber, it decreases the boiling point of the liquid nitrogen which means the nitrogen boils faster. But! The boiling liquid nitrogen is also evaporating which cools itself which… » 6/25/14 9:21pm 6/25/14 9:21pm

Concept Puppy Vacuum Cleaner Is Absolutely Adorable

This vacuum cleaner concept from Hyun-Seok Kim utilizes 4 robotic "puppies" as the vacuum cleaners, they run around the house and clean up everything they can get their clean paws on. The base station is designed as a "mommy dog", as it re-charges the puppies with power and gives them enough energy for the puppies to… » 5/04/11 7:20pm 5/04/11 7:20pm