Absolute Zero

Part 1
I thought that it is pretty impressive that they could have predicted that we would use this in the future.
Also that they did that so smartly with the Ice cubes.
What I noticed was that the people got refrigerators after that trade was going around the world.

Part 2
James Dewar always wanted to reach absolute zero, he eventually did, it he liquefied: Nitrogen, Hydrogen, and Oxygen   10 Celsius above Absolute Zero.
Apparently he had close down his lab for six months, because so many scientists or helpers got hurt, such as loosing an eye, or even breaking a bone.
Finally they found out something in a sample of Mercury, if something is four degrees above absolute zero, the electricity abruptly vanishes.