Looks Good on Paper by Dan Collins for August 12, 2024

Or maybe time stops.

Of course, it needs gravity to work!!!

Sand dilation, per Einstein.

If you decide which end you want the sand to flow towards, and attach something with sufficient mass to that end, it should work. Might be a bit slow, though, if it’s designed to work in the Earth’s gravity.

If it is aligned with a planet or star, is moving in a straight line toward, or away from that body (or held stationary). the sand will flow at a rate inversely proportional to the square of the distance.

Yours might not but my glasses do.

There is nowhere in space where there is absolutely zero gravitational field, so they should always work, but slower. That is, until the gravitational force is less than the frictional force between the grains of sand. Then they would not work. (End of nerd moment)

Iron filings with an electro-magnet in the base.

Regular hour glass in a centrifuge.

Fire up the engine to one g.

They don’t?

In space, no one can hear you say “time’s up.”

i don’t think he grasps the gravity of the situation.

Looks like something you would see in RBION.

How do you know? Have you tried it?

Wouldn’t the glass break due to the air pressure inside the hourglass, and lack of air pressure outside?

How much did the government spend on that one???