Planck Time - The shortest measure of time
17:25
The Planck Density: The Density of the Early Universe
12:46
The Planck Mass: Not extremely big and not extremely small
23:31
Calculating the Planck Units
16:07
Does the Past Still Exist?
22:57
What NASA Unexpectedly Discovered When They Opened the Bennu Sample
12:23
Can Space Be Infinitely Divided?
16:57
Light Can Go Backwards Through Time, And This Experiment Proves It
15:39