A horizontal line means the object is moving at a constant speed. The gradient of the line = the rate of change of speed. The steeper the line, the greater the increase in speed. The area under the ...

Quantum physics is the realm of the strange. And one of the strangest discoveries in the field is also one of the most fundamental: Particles fired at barriers with two slits in them can act like ...

Observers moving faster than the speed of light would see a universe with one dimension of space and three dimensions of time — the opposite of how we perceive the world. This is the bizarre ...