Being an astronaut is a very dangerous job once that the space conditions are very different of the Earth ones. Astronauts have to wear a space suit to hold a pressure and temperature suitable to the...
Hi I'm Joan and I want to share with you a great song when you want to teach your young learners about the weather. So.. The first thing you have to do is practice asking and answering about...
Greetings fellow nerds. In this video we're going to look at ice that's been cooled down with liquid nitrogen and compare it to regular ice. First, we need liquid nitrogen. I am not...