radio reflector
Học thuậtThân thiện
Definition
- Noun:
- A type of astronomical telescope: A
radio reflectoris an instrument designed to collect and focus electromagnetic radiation in the radio-frequency range that originates from celestial objects outside Earth's atmosphere.
Usage
- The primary function of a is to detect and study radio waves from space, such as those emitted by stars, galaxies, and nebulae.
- It typically consists of a large parabolic dish that reflects incoming radio waves to a receiver at its focal point.
Examples
- Noun:
- The observatory's giant radio reflector has discovered many distant pulsars.
- Scientists used a radio reflector to map the hydrogen gas in our galaxy.
Advanced Usage
- "to point a radio reflector": To aim the dish of the telescope at a specific region of the sky.
- They pointed the radio reflector toward the center of the Milky Way.
Variants and Related Words
- Radio telescope (n): A more general term for any telescope used to observe radio waves from space. A is a common type of radio telescope.
- Dish antenna (n): A descriptive term for the parabolic reflector component of such a telescope.
Synonyms
- Radio telescope: Astronomical instrument for radio wave observation.
- Radio antenna (astronomical): A receiver for cosmic radio signals.
Related Terms (Not Phrasal Verbs)
- Radio astronomy (n): The branch of astronomy that uses radio reflectors and similar instruments to study the universe.
- Parabolic reflector (n): The specific dish shape that focuses the incoming radio waves.
Noun
- astronomical telescope that picks up electromagnetic radiations in the radio-frequency range from extraterrestrial sources