New Science Tricks weekly! Click here to RT: http://bit.ly/fD0Fb8 Heat rises and smoke is usually hotter than the air surrounding it. So how can we make it colder and force it to sink like a rock? In...
214 VistasImpress your friends, family, and loved ones with these simple water and air tricks. First, we'll find out how trees get water all up in their trunks. Using a paper towel we can create an e...
189 Vistas