Telescopes collect and focus on light from a very far away source. In other words, if the sky was one single, flat, 1 by 1 plane, a telescope would focus only on the light coming from an area that's smaller, such as .01 by .01.
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Radio telescopes use large antennas to gather radio waves by focusing them onto a receiver. The receiver amplifies and converts these radio waves into electrical signals that can be analyzed by scientists to study celestial objects and phenomena in space.
Two practical applications of radio waves in modern technology are wireless communication, such as cell phones and Wi-Fi, and radar systems used in aviation and weather forecasting.
When you turn a radio on, electrical energy from the battery is transformed into sound energy and electromagnetic waves, allowing you to hear radio signals.
forces and motion
Ionosphere can enhance long-distance communication by reflecting radio waves back to Earth, which extends the range of radio transmissions. This can be particularly useful for military, aviation, and emergency communication systems that require reliable long-range communication. Ionosphere can also support satellite communication by enabling signals to travel longer distances without losing strength or clarity.
Electromagnetic waves are a type of energy that can travel through a vacuum or a medium. They have both electric and magnetic components that oscillate perpendicular to each other and to the direction of wave propagation. These waves have a wide range of frequencies and wavelengths, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. They can travel at the speed of light and do not require a medium to propagate.