liquid nitrogen + hot dogs = dry ice BBQDid you know your body is made of 3% nitrogen? When you crack your knuckles that sound you hear is actually the sound of nitrogen gas bubbles popping!
Pressurized liquid nitrogen can also be used to instantly freeze almost any fleshy matter! Tara and Anthony try using liquid nitrogen to cook food in this episode of Hard Science! (Spoilers: It tastes pretty terrible.)
Cracking knuckles actually releases oxygen, carbon dioxide AND nitrogen gas from your knuckle joints’ synovial fluid, but who’s counting?
Any time that liquid nitrogen can teach me something about biology is a good day for me.