Doppler Effect (aka Doppler Shift)
The Doppler Effect, also known as Doppler Shift, is the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source. In space and astronautical engineering, the Doppler Effect is used to measure the velocity and distance of objects in space. This is done by analyzing the shift in frequency of electromagnetic waves emitted by celestial objects, such as stars and galaxies, as they move towards or away from Earth. The Doppler Effect is also used in satellite communication, where it is used to compensate for the shift in frequency of signals transmitted from a moving satellite to a stationary receiver on Earth.
Your Previous Searches
Random Picks
- Robotic Spacecraft Missions: Robotic spacecraft missions refer to the use of unmanned spacecraft to explore and study celestial bodies in our solar system and beyond. These missions are designed to gather scientific data and images, and to perform experiments and tests ... Read More >>
- Helium: Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas series in the periodic table. Its boiling and melting points are the lowes ... Read More >>
- Parabolic Reflector: In the context of aerospace engineering, a parabolic reflector is a reflective surface used to collect or project energy such as light, sound, or radio waves. Its shape is part of a circular paraboloid, that is, the surface generated by a p ... 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