Ciekawostka: The earth weighs around 6,588,000,000,000,000,000,000,000,000 tons

Evidence: 41 • authority: 72

The Moon is the only natural satellite of Earth. It orbits Earth in an elliptical path, at a distance that varies over the year, averaging around 378,000 kilometers (235,000 mi). It completes an orbit (lunar month) in relation to Earth and the Sun (synodically) every 29.5 days. The Moon and Earth are bound by gravitational attraction, which is stronger on the sides facing each other. The resulting tidal forces are the main driver of Earth's tides, and have pulled the Moon to always face Earth with the same near side. This tidal locking effectively synchronizes the Moon's rotation period (lunar day) to its orbital period (lunar month). In geophysical terms, the Moon is a planetary-mass objec…

Evidence: 41 • authority: 72

The P&H L-2350 Wheel Loader (formerly the L-2350 loader) is a loader used for surface mining. It is manufactured by Komatsu Limited. It holds the Guinness World Record for Biggest Earth Mover. Designed to center-load haul trucks with capacities of up to 360 tonnes (400 short tons), the L-2350 provides an operating payload of 73 tonnes (80 short tons), a 7.03 metres (23.1 ft) lift height, and an 3.5 metres (11.5 ft) reach.

Evidence: 41 • authority: 72

Mikoyan MiG-2000 was a project by Russian Aircraft Corporation MiG for a liquid ramjet single-stage-to-orbit spaceplane, explored in the 1990s. It was envisioned to have a takeoff weight of 300 tons and deliver a 9-ton payload on a 200 km low Earth orbit. The plane lost a competition to the Tupolev Tu-2000. Similar to Rockwell X-30.

Evidence: 41 • authority: 72

In common usage, the mass of an object is often referred to as its weight, though these are in fact different concepts and quantities. Nevertheless, one object will always weigh more than another with less mass if both are subject to the same gravity (i.e. the same gravitational field strength). In scientific contexts, mass is the amount of "matter" in an object (though "matter" may be difficult to define), but weight is the force exerted on an object's matter by gravity. At the Earth's surface, an object whose mass is exactly one kilogram weighs approximately 9.81 newtons, the product of its mass and the gravitational field strength there. The object's weight is less on Mars, where gravity…

Evidence: — • authority: 72

A satellite or an artificial satellite is an object, typically a spacecraft, placed into orbit around a celestial body. They have a variety of uses, including communication relay, weather forecasting, navigation (GPS), broadcasting, scientific research, and Earth observation. Additional military uses are reconnaissance, early warning, signals intelligence and, potentially, weapon delivery. Other satellites include the final rocket stages that place satellites in orbit and formerly useful satellites that later become defunct. Except for passive satellites, most satellites have an electricity generation system for equipment on board, such as solar panels or radioisotope thermoelectric generat…

Evidence: — • authority: 35