Decibel (dB)


Decibel (dB) is a unit of measurement used to express the ratio of two values of a physical quantity, often power or intensity. In the context of space and astronautical engineering, decibel is commonly used to measure the sound pressure level of rocket engines and other spacecraft propulsion systems. It is also used to measure the signal strength of communication systems, such as radio and satellite transmissions. Decibel is a logarithmic unit, which means that a difference of 1 dB represents a tenfold difference in power or intensity. For example, a sound that is 10 dB louder than another sound is actually 10 times more intense. Decibel is a useful tool for engineers and scientists to compare and analyze data, as it allows them to express large ranges of values in a more manageable and meaningful way.


Your Previous Searches
Random Picks

  • Heat-rejecting Unit: A heat-rejecting unit is a device used in spacecraft to dissipate excess heat generated by the spacecraft's systems and components. The unit typically consists of a radiator, a heat exchanger, and a pump or other mechanism to circulate a co ... Read More >>
  • Fuel Requirements: In the context of aerospace engineering, 'Fuel Requirements' refers to the specific amount and type of fuel needed for a spacecraft or aircraft to successfully complete its mission. This includes the fuel necessary for launch, in-flight man ... Read More >>
  • Bone Density Loss: Bone density loss refers to the reduction in the amount of mineral matter per square centimeter of bones, which can lead to weakened bones and increased risk of fractures. In space and astronautical engineering context, bone density loss is ... Read More >>
Top News

Check out this interactive map of the early universe, considered largest ever cr...

A team of astronomers have put together the largest, most detailed map of the universe ever created – and you can explore it now....

News Source: USA Today on 2025-06-12

The Vera C. Rubin Observatory is about to totally transform astronomy...

With the ability to scan the entire southern night sky every three days, the huge Vera C. Rubin Observatory could be about to start solving the mysteries of the universe, from dark matter to Planet Ni...

News Source: New Scientist on 2025-06-12

Trump's proposed science cuts will have huge consequences...

The universe will still be there to marvel at, despite brutal cuts set to hit NASA and the National Science Foundation's budgets. But the damage to future research will be long-lasting, says Chanda Pr...

News Source: New Scientist on 2025-06-11

Starlink satellites are leaking radio signals that may ruin astronomy...

Our ability to study faint radio signals from when the first stars began to form is being threatened by SpaceX's Starlink satellites, which seem to be unintentionally leaking radio signals that overpo...

News Source: New Scientist on 2025-06-09

Asteroids around Venus pose possible 'invisible threat' to Earth: Should you be ...

A swarm of large asteroids likely lurking around Venus could one day pose an "invisible threat" to Earth if left unchecked, astronomers have warned....

News Source: USA Today on 2025-06-06