@sciencefunn: Fun fact, on the Earth's surface it’s 9.8m/s2, 1000km (621 miles), above surface it's 7.33m/s2 and for example 50000km (~31,000 miles) above surface the value is 0.13m/s2. Since I know you absolutely loved this fun fact, here's another one: Gravity is by far the weakest force we know. Gravity only attracts—there's no negative version of the force to push things apart. And while gravity is powerful enough to hold galaxies together, it is so weak that you overcome it every day. If you pick up a book, you're counteracting the force of gravity from all of Earth. For comparison, the electric force between an electron and a proton inside an atom is roughly one quintillion (that's a one with 30 zeroes after it) times stronger than the gravitational attraction between them. In fact, gravity is so weak, we don't know exactly how weak it is.

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Monday 31 August 2026 06:31:37 GMT