Start Questions to ask at speed dating

Questions to ask at speed dating

Speed networking is like speed dating for professionals.

Basically, if someone shoots you with a laser, wearing a suit covered in retro-reflectors is the fastest way to get revenge.

By bouncing lasers off of any of five sets of retro-reflectors left on the Moon between 19 by the USA and USSR, we can determine the distance to the Moon to within millimeters and have found that, at present, the Moon is drifting away at a sedate 4 cm per year.

The tides raised by the Moon are made up of a lot of water and that water, like all matter, creates gravity.

The Earth turns in the same direction that the Moon orbits and, since water doesn’t instantly slosh back to where it’s supposed to be, the tidal bulge is dragged a little ahead of the Moon.

Earth’s tidal bulges (the water distended by the Moon’s tidal forces) are dragged of the Moon by Earth’s rotation.

That extra water pulls the Moon a forward a tiny amount, speeding it up and elevating its orbit.

And 4.5 billion years ago, before the Moon had siphoned off so much of our rotational inertia, a day on Earth was a mere 6 hours.