SciShow
The Best Atomic Clock Ever Built?
Turns out, two atomic clocks are indeed better than one. And what role does sleep play in memory suppression?
SciShow
What’s Up With the Weird Pockmarks Up and Down the East Coast?
All along the east coast of the United States there are thousands of oval shaped pock marks, and scientists think they have a clue as to how they got there.
TED-Ed
TED-Ed: How to squeeze electricity out of crystals - Ashwini Bharathula
It might sound like science fiction, but if you press on a crystal of sugar, it will actually generate its own electricity. This simple crystal can act like a tiny power source because sugar happens to be piezoelectric. Ashwini...
TED-Ed
TED-Ed: How do crystals work? - Graham Baird
What makes crystals grow into their signature shapes? Dig into the atomic patterns and unique properties of crystals. -- Many crystals have signature shapes— like the cascade of pointed quartz or a pile of galena cubes. Every crystal’s...
msvgo
Measurement of Time and Temperature
It describes time measuring instruments in ancient and modern period. It also explains how to measure temperature in a laboratory and clinic.