Heinrich Hertz, the man who built the first machine capable of transmitting and receiving radio waves, (waves that are responsible for carrying all radio, TV, phone, and data) said that his discovery had "No use, whatsoever" en.m.wikipedia.org/wiki/H…
The reason cellular signal is so bad in poor weather is because raindrops and water vapor reflect radio waves and convert them into heat energy before they can reach your phone. The same goes for clouds, snow, and fog. wilsonamplifiers.com/blog…
Scientists originally used the term radio to indicate radiant or radiation, such as "radio-active". It wasn't until 1900, twelve years after the discovery of radio waves, that the radio waves were used to carry sound and it would be another 12 years before they were called radio waves. ec2-23-21-117-9.compute-1…
In the 1970s rock music was banned in Mexico. The PRI government, which led the country from 1929 to 2000, also banned rock music from radio waves and ordered media outlets to refer to the genre as β€œincorrect, grotesque, and immoral” chicanobeat.com/2018/07/1…
The Iphone fingerprint sensors can differentiate between a living and dead. Apple-developed biometric uses radio frequency waves to check the skin underneath a finger's outer layer mashable.com/2017/11/15/s…
The Arecibo message is a 1974 interstellar radio message carrying basic information about humanity and Earth sent to globular star cluster M13, which is about 25,000 light years away. The message was broadcast into space a single time via frequency modulated radio waves and forms a picture. en.wikipedia.org/wiki/Are…
Physicist Heinrich Hertz, upon proving the existence of radio waves, stated that "It's of no use whatsoever." When asked about the applications of his discovery: "Nothing, I guess." en.wikipedia.org/wiki/Hei…
Radio waves from our Milky Way galaxy are reflected across the surface of the moon. It can be detected using radio telescopes. space.com/amp/42496-milky…
Before we had man-made communications satellites, a technique called the "Moon bounce" was used to send long range radio signals. Radio waves were sent up from Earth, bounced off the Moon, and then back down to a receiver on Earth. The technique is still used by some amateur radio operators. en.wikipedia.org/wiki/Ear…
Learned that things emit radio waves (also known as millimeter wave) above certain temperature. youtube.com/watch?v=JBvHq…
About 1 percent of the static on fm radio's and old crt analog TV's is caused by radio waves generated during the big bang. You can literally listen to or watch the birth of the universe. universetoday.com/25560/t…
Today I learned that the upper bound of Extremely low frequency(ELF) radiation(mostly long radio waves) wavelengths is about 100,000 km, or 62, 000 miles. For comparison, the diameter of Saturn is around 75,000 miles. nasa.gov/directorates/heo…
Today I learned of Radiofax, analogue mode for transmitting monochrome images via high frequency radio waves. en.wikipedia.org/wiki/Rad…
China built an antenna that emits extremely low frequency radio waves. It spans an area of almost 5 times the size of New York. nzherald.co.nz/world/news…
In the 1960's, for fear of having their submarine communication cables cut by the Soviets, the US military sent 480,000,000 copper needles into space to secure their communications infrastructure. The needles acted as a mirror for radio waves, enabling communication between distant sites. en.wikipedia.org/wiki/Pro…
There's an unknown object in the nearby galaxy m82 that started sending out radio waves. The emission doesn't look like anything seen before sciencedaily.com/releases…
Because radio waves travel faster than sound sound waves, if you stand at the base of Big Ben you can hear the chime on the radio before you hear it in real life. awesci.com/big-ben-chime-…
In 2010 we started to receive radio waves from an unknown object in the nearby galaxy m82. The radio emission is unidentifiable and doesn't look like anything seen before sciencedaily.com/releases…
Planets "emit sounds" by pulsing with radio waves, which can be picked up by radio antennae. The Earth's noise is sometimes referred to as Earth's "chorus" because it sounds a bit like birds chirping. theatlantic.com/technolog…
The reason we can transmit radio waves across the earth is because there is a layer, the ionsphere, that contains ionized gas which is electrically conductive and so reflects radio waves back onto the earth weather.gov/jetstream/ion…
Nokia is developing a method of harvesting radio-waves, which would recharge your phone while it's on standby. theguardian.com/environme…
Heinrich Hertz, the man who discovered radio waves, stated they had "no use whatsoever". wikipedia.org/wiki/Heinri…
Those radio waves on the cover of Joy Division's Unknown Pleasures come from the pulsar C-1919, which was the first observed pulsar ever. post-punk.com/animated-hi…
The difference between MRI and CT Scan: CT scans and MRIs are both used to capture images within your body. The biggest difference is that MRIs (magnetic resonance imaging) use radio waves andCT (computed tomography) scans use X-rays. healthline.com/health/ct-…
The idea for hold music was first patented in 1962, with the idea coming from a loose piece of wire from a phone system touching a girder which in turn helped it pick up radio waves. slate.com/culture/2014/09…
In 2016, an occasional summertime atmospheric event called Sporadic E turned the southern hemisphere sky into a radio wave "mirror", causing shortwave FM radio stations from Australia to be heard in Auckland in New Zealand, over 1500 miles away radioinfo.com.au/news/spo…
Tesla invented the Tesla coil, a device essential to sending and receiving radio waves. But in 1895, a fire destroyed Tesla's lab as he prepared to send a radio signal approximately 50 miles (80 km) to West Point, N.Y. Marconi relied on Tesla's work won the Nobel Prize for physics in 1909 science.howstuffworks.com…
Unknown Pleasures art cover by Joy Division is a plot of a series of radio waves generated by a pulsar stacked on top of each other. en.wikipedia.org/wiki/Unk…
Near the 1940s it was popular to build DIY radios called "crystal sets." It needed no other power source but that received solely from the power of radio waves received by a wire antenna. en.wikipedia.org/wiki/Cry…
By twisting radio waves into a vortex, researchers transmit data (over a distance of one meter) wirelessly at a speed of 2.5 terabits per second popsci.com/science/articl…
In 1935 a British engineer named Robert Watson-Watt was working on a weapon that would destroy enemy aircraft with radio waves. This weapon later evolved into Radar (Radio Detection And Ranging). en.wikipedia.org/wiki/Rad…
When a United States Air Force (USAF) F-22A Raptor stealth fighter jet's radar-absorbent material (RAM) "is illuminated by radar, its molecules oscillate, converting the radio waves or microwaves into heat, which dissipates from the skin, rather than reflecting the energy back to its source." airspacemag.com/military-…
Just after WWII, multiple short wave radio stations located around the world appeared. These stations transmit letters and numbers, presumably to spies and still operate today. en.wikipedia.org/wiki/Lin…
The Olympic flame in 1976 traveled by radio waves to a laser that lit the cauldron. en.wikipedia.org/wiki/197…
Today I learned of The Thing, invented by Leon Theremin, of theremin electronic music instrument fame. The Thing converted acoustic waves directly into radio wave modulations, with no circuitry nor batteries. For 7 years it hung in the office of the US Ambassador to Moscow, in plain view, almost undetectable. en.wikipedia.org/wiki/The…
Some bacteria might generate, and communicate with radio waves. phys.org/news/2011-04-the…
Fireball meteors can create electrophonic sound, which is thought to be VLF radio waves generated by the fireball. The sound can range from hissing to sizzling to popping, and is amplified by the amount of hair on the listener or by the presence of a nearby metal object. amsmeteors.org/fireballs/…
In April 2010, an unknown object was discovered in the galaxy M82. The object began sending out radio waves, and the emission did not look like anything seen anywhere in the universe before. en.wikipedia.org/wiki/Mes…
Joy Divisions Unknown Pleasures album cover is a plot of radio waves from a pulsar. It was first visualized this way to help look for repeating patterns by student at Cornell. blogs.scientificamerican.…
NAVSPASUR (Navy Space Surveillance Radar) was/is a very powerful transmitter. It could/can transmit "800 kW of continuous-wave (CW) radio power into an east-west oriented fan beam at 216.98 MHz" and "detect objects as small as 10 cm [3.93701 in] orbiting 15,000 km [9320.5679 miles] above" Earth. science.nasa.gov/science-…
Boeing uses sacks of potatoes as substitutes for human passengers to test for weak spots in in-flight wi-fi signals, as potatoes absorb and reflect radio waves in the same way as humans usatoday.com/story/todayi…
The length of car antennae is based on the length of radio waves themselves en.wikipedia.org/wiki/Whi…
That, at least in 1919, Nikola Tesla did not believe radio waves existed earlyradiohistory.us/tesl…
The existence of radio waves was mathematically predicted before it was demonstrated in reality. en.wikipedia.org/wiki/Rad…
FM radio reduces static by changing the frequency of the radio waves instead of changing amplitude (AM radio) en.wikipedia.org/wiki/Fre…
The reason why you occasionally can receive radio stations from cities far outside their normal broadcast range. A phenomenon called Tropospheric Ducting acts like a lens, bending the radio waves and greatly extending the normal reception range. en.wikipedia.org/wiki/Tro…
At the height of the cold war, countries would use short wave radio frequencies to broadcast one-way encrypted messages to spies who would know where and when to tune in. These messages would feature a short synthesized voice of a woman repeating strange numbers or letters gizmodo.com/these-secret-…
There are short wave radio stations that can be heard broadcasting mysterious mechanical voices counting off endless strings of numbers. Their origin is still unknown, but it is speculated that these "number stations" are a method for government agencies to communicate with spies. en.wikipedia.org/wiki/Num…
Radio waves travel near Earths surface during the day, but reflect off of the ionosphere at nighttime, which causes AM radio to travel a farther distance at night. en.wikipedia.org/wiki/Sky…
Scientists in Puerto Rico sent 10,000 Twitter messages to the origin of the Wow! signal; A non-terrestrial radio wave with unknown causes. en.wikipedia.org/wiki/Wow…

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