Techno-Science on MSN

Galaxies rotate in the same direction: are we inside a giant black hole?

The James Webb Space Telescope (JWST) has revealed an unexpected observation: the majority of galaxies observed in the deep ...

What is below Earth, since space is present in every direction?

Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...
Astronomy

Ask Astro: How do we distinguish the north and south poles of planets other than Earth?

A planet's north pole is defined by its position relative to the solar system's invariable plane. The invariable plane is a fixed reference point perpendicular to the solar system's rotation. A planet ...
BBC

How do different gears transmit motion?

Different gears like spur, bevel, worm and wormwheel, rack and pinion, meshed gears, and threaded bars serve various purposes. When selecting a gear system, consider speed, direction, force, space, ...