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Vor 3 Tagen · Sally Kristen Ride (May 26, 1951 – July 23, 2012) was an American astronaut and physicist. Born in Los Angeles, she joined NASA in 1978, and in 1983 became the first American woman and the third woman to fly in space, after cosmonauts Valentina Tereshkova in 1963 and Svetlana Savitskaya in 1982. She was the youngest American astronaut to have ...
Vor 3 Tagen · Apollo 9 →. Apollo 8 (December 21–27, 1968) was the first crewed spacecraft to leave Earth's gravitational sphere of influence, and the first human spaceflight to reach the Moon. The crew orbited the Moon ten times without landing, and then departed safely back to Earth. [1] [2] [3] These three astronauts — Frank Borman, James Lovell, and ...
Vor 4 Tagen · Die Corioliskraft ( [kɔri'joːliskʁaft] , früher auch [kɔrjoˈliːskraft] [1]) ist eine der drei Trägheitskräfte der klassischen Mechanik, die in einem rotierenden Bezugssystem auftreten. Die Corioliskraft tritt genau dann in Erscheinung, wenn ein Körper sich in einem rotierenden Bezugssystem bewegt und wenn diese Bewegung nicht parallel ...
Vor einem Tag · Public holiday. Chinese New Year is observed as a public holiday in some countries and territories where there is a sizeable Chinese population. Since Chinese New Year falls on different days of the week each year, some of these governments opt to shift working days in order to accommodate a longer public holiday.
Vor 5 Tagen · Newton's first law expresses the principle of inertia: the natural behavior of a body is to move in a straight line at constant speed. A body's motion preserves the status quo, but external forces can perturb this. The modern understanding of Newton's first law is that no inertial observer is privileged over any other.
Vor 3 Tagen · Some climate change effects: wildfire caused by heat and dryness, bleached coral caused by ocean acidification and heating, environmental migration caused by desertification, and coastal flooding caused by storms and sea level rise. Effects of climate change are well documented and growing for Earth's natural environment and human societies.
Vor 3 Tagen · A laser SBSP could also power a base or vehicles on the surface of the Moon or Mars, saving on mass costs to land the power source. A spacecraft or another satellite could also be powered by the same means. In a 2012 report presented to NASA on space solar power, the author mentions another potential use for the technology behind space solar power could be for solar electric propulsion systems ...
