Is gravity the same everywhere on Earth?
Pretty much… but… On top of Everest, you are that much further from the Earth’s pull, that gravity is reduced by a whopping 0.3% compared to sea-level. Due to earth’s bulge and its rotation, you weigh 0.5% more at the poles than at the equator. Variations in the density of the Earth mean that gravity varies in strength and even direction. Near a large mountain, you are pulled a tiny bit towards the mountain away from being pulled straight down. Even the tides of the Moon and Sun are changing the local gravity, detectable by sensitive instruments. These effects are all tiny, and to a good approximation gravity is the same all over the surface of the Earth. If it were possible to drill to the earth’s core however, the gravity would decrease to weightlessness at the centre. Something not anticpated by Jules Verne.
