Amazing Engineering - How the Romans Built the Aqueducts
This is how Jupiter has protected earth for billions of years. The gravity of Jupiter keeps most asteroids and space rocks away from Earth. Without it earth would most likely be uninhabitable for humans. Mad respect for Jupiter.
Stabilized camera captures the Earth's rotation 😮
Watch a beaker disappear when submerged.
The vegetable oil and the borosilicate glass beaker have the same refractive index—a measure of light bending when passing from one medium into another.