Passive System
In space and astronautical engineering, a passive system refers to a system that does not require any external power or control to operate. It relies on natural phenomena such as gravity, radiation, and thermal energy to function. Passive systems are often used in spacecraft design to reduce complexity, weight, and cost. Examples of passive systems include passive thermal control systems that use materials with high thermal conductivity to regulate temperature, passive attitude control systems that use gravity-gradient stabilization or magnetic torquers to maintain spacecraft orientation, and passive radiation shielding systems that use materials with high atomic number to protect against ionizing radiation. Passive systems are also used in space exploration missions to study celestial bodies such as planets, moons, and asteroids. For instance, passive seismic experiments use natural vibrations and impacts to study the interior structure of planets and moons.
Your Previous Searches
Random Picks
- Permafrost: Permafrost is a layer of soil or rock that remains frozen for at least two consecutive years, typically found in polar and high-altitude regions. In space and astronautical engineering, permafrost is of particular interest due to its potent ... Read More >>
- Gas Centrifugation: Gas centrifugation is a process of separating isotopes of gases using centrifugal force. It involves the use of a high-speed rotor to separate isotopes based on their mass difference. The gas is introduced into the rotor and spun at high sp ... Read More >>
- Respiratory Problems: Respiratory problems refer to any condition that affects the lungs and the ability to breathe. In the context of space and astronautical engineering, respiratory problems can arise due to the unique environment of space, such as microgravit ... Read More >>
Top News
This week on "Sunday Morning" (April 20)...
A look at the features for this week's broadcast of the Emmy-winning program, hosted by Jane Pauley....
News Source: CBS News on 2025-04-17
Scientists detect strongest hints yet of life on a distant planet...
Scientists have detected unique chemical patterns similar to those produced by the Earth's algae and seaweed — raising the possibility of the presence of a warm ocean, perhaps teeming with life, on ...
News Source: NBC News on 2025-04-17
Is there life on another planet? Scientists find the strongest evidence yet...
Near a planet far, far away astronomers have found traces of chemicals that on Earth are only produced by living beings....
News Source: Al Jazeera English on 2025-04-17
Scientists find strongest evidence yet of life on an alien planet | CNN...
In a potential landmark discovery, scientists using the James Webb Space Telescope have obtained what they call the strongest signs yet of possible life beyond our solar system, detecting in an alien ...
News Source: CNN on 2025-04-17
Katy Perry's trip to space wasn't inspirational. It was tone-deaf marketing....
Katy Perry indulged in a space tourism trip Monday, courtesy of Jeff Bezos' company. It's the latest in a long line of missteps for the singer....
News Source: Business Insider on 2025-04-14