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The Kola Superdeep Borehole SG-3 (Russian: Кольская сверхглубокая скважина СГ-3, romanized: Kol'skaya sverkhglubokaya skvazhina SG-3) is the deepest human-made hole on Earth (since 1979), which attained maximum true vertical depth of 12,262 metres (40,230 ft; 7.619 mi) in 1989. [1]
Boring is drilling a hole, tunnel, or well in the Earth. It is used for various applications in geology, agriculture, hydrology, civil engineering, and mineral exploration. Today, most Earth drilling serves one of the following purposes: return samples of the soil and/or rock through which the drill passes; access rocks from which material can ...
Antipodes Map Interactive map which draws an imaginary tunnel to the other side of the Earth. findLatitudeAndLongitude, interactive tool to show antipodes; 3D dual globe schematic 3D representation of the earth and the anti-earth on the same place. Map Tunneling Tool Tunnel to the Other Side of the Earth; Calculate the other side of the world
Umbra, penumbra and antumbra of Earth and images that could be seen at some points in these areas (Note: the relative size and distance of the bodies shown are not to scale.)“… The Earth’s shadow has two distinct parts,… the UMBRA is the part of the shadow where all direct sunlight is blocked by the Earth; the PENUMBRA of the shadow is ...
Hole in one (also known as a hole-in-one or an ace, mostly in American English), occurs when a ball hit from a tee to start a hole finishes in the cup Hole-in-one Register (or United States Golf Register), the United States' official historical registry of holes-in-one; Hole set, a position in water polo
The original calculations assumed that the Earth has the same density throughout - and the gravitational force changes as you approach the center, much like the weight of a spring that bounces up ...
Now conspiracy theorists say NASA is hiding the fact that Earth is really hollow and that inside is another world, where aliens and animals that look like woolly mammoths live.
The actual Hill radius for the Earth-Moon pair is on the order of 60,000 km (i.e., extending less than one-sixth the distance of the 378,000 km between the Moon and the Earth). [ 9 ] In the Earth-Sun example, the Earth ( 5.97 × 10 24 kg ) orbits the Sun ( 1.99 × 10 30 kg ) at a distance of 149.6 million km, or one astronomical unit (AU).