approach hole
51Gravity assist — In orbital mechanics and aerospace engineering, a gravitational slingshot, gravity assist or swing by is the use of the relative movement and gravity of a planet or other celestial body to alter the path and speed of a spacecraft, typically in… …
52Numerical relativity — is one of the branches of general relativity that uses numerical methods and algorithms to solve and analyze problems. To this end, supercomputers are often employed to study black holes, gravitational waves, neutron stars and many other… …
53Dye-sensitized solar cell — A selection of dye sensitized solar cells A dye sensitized solar cell (DSSC, DSC or DYSC[1]) is a low cost solar cell belonging to the group of thin film solar cells.[2] …
54Список награждённых Национальной медалью науки США — Джошуа Ледерберг (справа) получает Национальную медаль науки из рук Президента США Джорджа Буша старшего Список …
55Event horizon — In general relativity, an event horizon is a boundary in spacetime, an area surrounding a black hole or a wormhole, inside which events cannot affect an outside observer. Light emitted from inside the horizon can never reach the observer, and… …
56Screenwriting — is the art and craft of writing scripts for film, television or video games.Writing for film is potentially one of the most high profile and best paying careers available to a writer and, as such, is also perhaps the most sought after. While it… …
57A. H. Almaas — A.H. Almaas A.H. Almaas Born 1944 Kuwait Occupation Author, Spiritual Teacher Ali Hameed Almaas (A.H. Almaas) is the …
58Beowulf Shaeffer — ( Bey ) is a fictional character from Larry Niven’s Known Space series. Shaeffer is a crashlander, a native of We Made It, a planet circling the star Procyon. He is the central figure of several stories which revolve around his dealings with… …
59science, philosophy of — Branch of philosophy that attempts to elucidate the nature of scientific inquiry observational procedures, patterns of argument, methods of representation and calculation, metaphysical presuppositions and evaluate the grounds of their validity… …
60Diné Bahaneʼ — (Navajo: Story of the People ), the Navajo creation story, describes the prehistoric emergence of the Navajos, and centers on the area known as the Dinétah, the traditional homeland of the Navajo people. This story forms the basis for the… …
