SI


SI stands for the International System of Units, which is the modern form of the metric system. It is the world's most widely used system of measurement, and is based on seven base units: the meter (length), kilogram (mass), second (time), ampere (electric current), kelvin (temperature), mole (amount of substance), and candela (luminous intensity). In space and astronautical engineering, the SI system is used extensively for measuring physical quantities such as distance, velocity, acceleration, mass, and time. It is particularly important for space missions, where precise measurements are critical for navigation, communication, and scientific research.


Your Previous Searches
Random Picks

  • Weather Satellites: Weather satellites are spacecraft that are designed to observe and monitor the Earth's atmosphere, providing information about weather patterns, climate, and the environment. These satellites are equipped with a variety of instruments, incl ... Read More >>
  • Space Power System: Space Power System refers to the technology and infrastructure required to generate, store, and distribute power in space. This includes solar panels, batteries, fuel cells, nuclear reactors, and other power sources, as well as the electric ... Read More >>
  • Thermal Vacuum Tests: Thermal vacuum tests are a type of environmental testing performed on spacecraft and components to simulate the extreme conditions of space. The tests involve subjecting the spacecraft or component to a combination of high vacuum and extrem ... Read More >>
Top News

Orionids meteor shower is this weekend: Where and when to watch its peak...

Orionids meteor shower is this weekend: Where and when to watch its peakgo.com...

News Source: ABC News on 2024-10-18

Acting or hosting, Travis Kelce wants to continue to pursue a showbiz career. Bu...

Travis Kelce is the host of “Are You Smarter Than a Celebrity?”...

News Source: ABC News on 2024-10-09

Now is a great time to see Saturn in all its ringed glory...

My first sight of Saturn through a telescope inspired my love of space. Dig out your telescopes or visit your local astronomy club, and you may be lucky enough to spot our sixth planet's stunning thic...

News Source: New Scientist on 2024-10-09

Was Bruce Willis right? Could a nuclear blast save us from killer asteroid?...

Scientists simulated a nuclear explosion using x-ray pulses to push an asteroid-like rock away in space-like conditions....

News Source: Al Jazeera English on 2024-10-04

China's answer to SpaceX's Starlink is also threatening astronomy...

The first 18 satellites of a planned Chinese mega constellation are brighter than all but 500 stars in the sky, raising fears of a huge impact on astronomy...

News Source: New Scientist on 2024-10-03