5 Periodic Tables We Don't Use and Why
20:57
Are there Undiscovered Elements Beyond The Periodic Table?
13:50
Why Does Everything Decay Into Lead
11:52
Mercury Shouldn't Be Liquid. But It Is.
42:34
The Obviously True Theorem No One Can Prove
18:48
Why Your Grandmother Is an Evolutionary Mystery
13:28
Alternative Periodic Table
18:07
Can We Create New Elements Beyond the Periodic Table?
33:01