various investigators have from time to time turned their attention towards a demonstration of the interchangeability of thermal and radio methods of detecting electromagnetic waves. The use of ...

THE increasing application to various radio purposes of ultra-short electric waves of less than 10 m. in wave-length has given a new stimulus to the problem of calculating the field strength at ...

Mysterious radio waves are emanating from the heart of our galaxy, and astronomers don't know what's making them. All celestial objects emit radio waves - planets, stars, dead stars, and even ...

This article was originally published with the title “ Radio Waves from Interstellar Hydrogen ” in Scientific American Magazine Vol. 189 No. 6 (December 1953), p. 42 doi:10.1038 ...

Amplitude modulation is the transferring of information onto a radio wave by varying the amplitude (intensity) of the radio carrier signal. Figure 1.6 shows that amplitude modulation involves the ...

OK. So we have a signal that is sent to a radiosmitter's antenna. How does that signal get from the antenna to the air? Let's first take a look at the signal. The signal is an electic current, and ...

AM (Amplitude Modulation) is a method of broadcasting radio and covers both Medium Wave (MW) and Long Wave (LW). Most AM radios have in-built aerials so the location of the radio is often the most ...

So, instead of using ultrasound, radio waves are used as they travel at 300,000,000 m/s. It works in the same way as sonar but with radio waves in place of ultrasound. A short pulse of radio waves ...

Researchers have investigated the effects of radio waves exposure and found radio waves from wireless technology pose no ...

Trending Live Playlists on Global Player: The official Heart app!

Against Me! has posted a link to what looks like a fan-shot video for their track, "Borne On The FM Waves of the Heart." The original track features a duet from Tom Gabel and Tegan Quinn which is ...

which show the rate of heart attack in young people increasing by 66 percent, suggesting the pandemic may have played a role a role. Dr Cheng said: 'I'd love to say we're ... coming out on the ...