5. Liquid Glass Putty
PDMS (polydimethylsiloxane), AKA Silly Putty without additives, it is used as a standard for rheometers (machines that test complex fluid properties).
4. Laminar Flow
3. Sodium Polyacrylate
Basically, it’s a polymerized compound, so it has a heap of repeating parts (monomers). Each monomer in the case of sodium polyacrylate has a small positive and a small negative charge. There are heaps of these monomers all joined together and the water molecules are attracted to these charges.
They form loads of dipole dipole interactions and the sheer number of tiny charges is what gives it such a massive capacity to absorb the water.
2. Hot Nickel Ball vs Block of Ice
You can watch the full video of him heating the ball, here http://www.youtube.com/watch?v=w0o5xVkzo54.
1. Rubidium and Water
You can watch the full video, with the boring explanation here, or you can just watch the best part down below.
It’s always better, to end with a bang.