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
- Polymer Matrix: Polymer matrix is a composite material consisting of a polymer resin as the matrix (continuous phase) and reinforcing agents such as fibers, particles, or other small components dispersed throughout the matrix (discontinuous phase). In the ... Read More >>
- Spacecraft Batteries: Spacecraft batteries are energy storage devices that provide electrical power to spacecraft systems and payloads. They are critical components of any spacecraft, as they provide power during launch, in orbit, and during critical mission pha ... Read More >>
- Mineral: In the context of space and astronautical engineering, a mineral is a naturally occurring inorganic solid substance that has a crystalline structure and a defined chemical composition. Minerals are of great importance in space exploration a ... Read More >>
Top News
Bestselling author explains the science of happiness: "You can do the work"...
Bestselling author and Harvard professor Arthur Brooks opens up about how enjoyment, satisfaction and meaning in life can increase a person's wellbeing....
News Source: CBS News on 2024-11-18
November's full moon, known as the Beaver Moon, is the last supermoon of 2024. H...
November's full moon, known as the Beaver Moon, is the last supermoon of 2024. Here's when it peaks and why it's called the Beaver Moon....
News Source: CBS News on 2024-11-15
You can't put a price on the sense of awe particle physics inspires...
Astronomy and particle physics are no longer seen as vital by the US establishment, so funding has fallen. But our work creates a sense of wonder, and wonder matters, says Chanda Prescod-Weinstein...
News Source: New Scientist on 2024-11-13
If you want to stretch your gift game into days this holiday, check out these ad...
The advent calendar phenomenon is growing every year, with so many exciting, fun, beautiful, and delicious options available...
News Source: ABC News on 2024-11-04
November brings a bonanza of meteor showers...
November brings a skywatching bonanza, with three meteor showers — the Southern Taurids, Northern Taurids and Orionids — offering chances to see shooting stars....
News Source: NBC News on 2024-11-02