Heinrich Hertz, when he discovered radio waves in 1887, he called them radio waves because they radiated.

Radio tower, 150 foot

Radio tower, 150 feet

These result in electromagnetic radiation ranging from radio waves to X rays, high energy protons and changes in the interplanetary solar winds.

Downlink emissions could be particularly damaging and already the emissions of some satellite systems had severely curtailed radio astronomy observations.

There were over 40 private radio transmitters and 16 private television transmitters.

We have 1.4 million expensively deployed, inefficient radio cellular base stations.

Your radio transmitter's on the wrong frequency.

In the field of radio astronomy, there were problems with artificial radio transmissions from orbiting satellites.

Radio could carry sound without wires.

The way we transmit wireless data is by using electromagnetic waves in particular, radio waves.

Jansky had made a historic discovery, that celestial objects could emit radio waves as well as light waves.

39. The need for an accurate determination of the diffuse radio and microwave emission from the galactic disk was highlighted by the limitations imposed on cosmic microwave background (CMB) data because of galactic foreground emission.

What's the point of these radio waves that you've found?

Radio

Radio waves. There's another thing.

And radio waves are limited.

A solar research programme is being continued under the international Coronas I project (research on dynamic, active solar processes, the properties of solar cosmic radiation and electromagnetic radiation in the radio, visible, ultraviolet, X ray and gamma bands).

These radio waves penetrate through walls.

Do you know that we have 1.4 million cellular radio masts deployed worldwide?

Work is continuing in connection with the solar research programme under the international Coronas I project (research on dynamic, active processes and the properties of solar cosmic radiation and electromagnetic solar radiation in the radio, visible, ultraviolet, X ray and gamma bandwidths).

We use them to communicate, cook, and diagnose and cure disease. The unified theory of electromagnetism has led to profound advances across all physical science, from atomic physics (where lasers and masers are essential tools) to cosmology (where the microwave background radiation is our window on the Big Bang).

They had 53 television and 61 radio transmitters, including 49 ultra short radio wave transmitters.

(c) A radio science payload this includes X and K band transponders and an accelerometer

Base radio station, transceiver receiver

It doesn't emit in the electromagnetic spectrum. It doesn't reflect.

The atmosphere itself radiates at particular wavelengths (especially in the infrared).

Current activities include design, production and application of various microwave and millimetre wave instrumentations and techniques, for example, scatterometer, radiometer, Doppler radar, a millimetre waves radio telescope, sensitive radio receivers design and component productions basic element and material studies for vegetation canopy modelling and millimetre wave tomography.

The communications package includes an S band downlink and amateur radio store and forward communications with an audio repeater to stimulate radio interest among schoolchildren.

On 25 December 1997, the commercial television and radio relaying satellite ASIASAT was launched into an unplanned orbit.

We soon tune in to Ivan's wave length.

So whilst inventing the technology that would usher in the telecommunications revolution, Watson had discovered that the star at the center of our solar system emitted powerful radio waves.

The Tanegashima Space Centre has a total land area of 8.6 million square metres. The site has launch pads for H II, J 1 and TR IA rockets, communication and test facilities and optical and radio wave systems.

The radio was invented by Marconi.

Rays consisting of electrons that are emitted from Atoms of radioactive elements.

30. The atmosphere of Earth is opaque to most types of electromagnetic radiation.

Table Cost of direct short wave radio broadcasting for the biennium 2000 2001

A radio communications set

Radio transmitter, 250 watt

And then we have the radio waves, they have the issues I've just mentioned.

Only visible light and radio waves from the cosmos can be detected at sea level.

Radio astronomers study radio waves from space using sensitive antennas and receivers, which give them precise information about what an astronomical object is and where it is in our night sky.

A shell from the Uboat hit the radio shack!

New sources emitting radiation in the annihilation gamma line of positrons have also been discovered.

News and magazine programmes are also distributed via telephone lines and radio circuits for shortwave rebroadcast by regional broadcasters.