Search results
Results from the WOW.Com Content Network
Radar is a system that uses radio waves to determine the distance ( ranging ), direction ( azimuth and elevation angles ), and radial velocity of objects relative to the site. It is a radiodetermination method [1] used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, map weather formations, and terrain.
A tractor beam is a device that can attract one object to another from a distance. [1] The concept originates in fiction: The term was coined by E. E. Smith (an update of his earlier "attractor beam") in his novel Spacehounds of IPC (1931). Since the 1990s, technology and research have labored to make it a reality, and have had some success on ...
Star tracker. The STARS real-time star tracking software operates on an image from EBEX 2012, a high-altitude balloon-borne cosmology experiment launched from Antarctica on 2012-12-29. A star tracker is an optical device that measures the positions of stars using photocells or a camera. [1] As the positions of many stars have been measured by ...
Jerk (physics) In physics, jerk (also known as jolt) is the rate of change of an object's acceleration over time. It is a vector quantity (having both magnitude and direction). Jerk is most commonly denoted by the symbol j and expressed in m/s 3 ( SI units) or standard gravities per second ( g0 /s).
Pure physics is a branch of fundamental science (also called basic science). Physics is also called " the fundamental science" because all branches of natural science like chemistry, astronomy, geology, and biology are constrained by laws of physics. [60] Similarly, chemistry is often called the central science because of its role in linking ...
An air track is a scientific device used to study motion in a low friction environment. Its name comes from its structure: air is pumped through a hollow track with fine holes all along the track that allows specially fitted air track cars to glide relatively friction-free. Air tracks are usually triangular in cross-section.
Tracker is an American action drama television series created by Ben H. Winters based on the 2019 novel The Never Game by Jeffery Deaver. [1] [2] The series stars Justin Hartley as Colter Shaw, a skilled survivalist and tracker who earns his living by assisting law enforcement and private citizens in exchange for reward money.
The Physics is an American hip hop group based in Seattle, Washington. It was created in the late-1990s when its members, Thig Natural (Gathigi Gishuru), Monk Wordsmith (Njuguna Gishuru) and Just D'Amato (Justin Hare) were students at O'Dea High School in Seattle. Since 2007, the trio has released three full-length albums, two EPs and several ...