Today I learned about crystal radio, a radio receiver made with simple parts that needs no external power source, all it needs is a radio signal to produce sound. en.wikipedia.org/wiki/Cry…
The practice of playing music for callers on hold began with a faulty phone line connection. A loose wire touching the steel frame of an office building caused it to act as a giant radio receiver, allowing callers to hear music from local radio stations while they waited on hold. en.wikipedia.org/wiki/Mus…
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…
Before there was satellite radio and HD radio there was AM stereo . It began in the mid-1980s to help AM radio compete with FM stations that broadcast in stereo, but it soon faded due to a lack of AM stereo radio receivers and a shift in AM programming from music to talk and sports. en.wikipedia.org/wiki/AM_…
In The Island of Dr. Moreau Marlon Brando wore a small radio receiver to aid him remembering his lines. Co-Star David Thewlis claimed "He'd be in the middle of a scene and suddenly he'd be picking up police messages and Marlon would repeat, 'There's a robbery at Woolworths'." ew.com/article/1996/05/03…
Today I learned of Orio Palmer, the FDNY Fire Chief at the time of 9/11 who fixed an elevator and a radio receiver and climbed up to the 78th floor (impact zone) of the South Tower before its impending collapse. youtu.be/IP51TrbyfsI
Almost every smartphone (iPhones too) has a built-in FM radio receiver, and most in the U.S. are purposely deactivated by wireless carriers npr.org/blogs/alltechcons…
Rats can be remotely controlled with training, implanted electrodes, and a radio receiver it wears in its tiny electronics backpack. It is possible to roughly guide the animal along an obstacle course, jumping small gaps and scaling obstacles as if it were a toy. en.wikipedia.org/wiki/Gui…
The first integrated circuits were made in the 1920's by Loewe and included up to three triodes, tetrodes or pentodes and SEVERAL PASSIVE ELEMENTS in the same vacuum tube enclosure. These devices implemented almost an entire radio receiver in that one enclosure. electricstuff.co.uk/loewe…
$100 million is being spent in a 10-yr search for intelligent extraterrestrial life in the universe, financed by Russian tycoon Yuri Milner and supported by Stephen Hawking. Funds will be used to get radio telescope time, research/development of receiver technology, and to hire astronomers. en.wikipedia.org/wiki/Bre…
The little green dot on the back of a football helmet means the helmet contains a radio receiver, allowing the player to get instructions from the sideline. Only one such helmet may be used by the offense and one by the defense on any given play. dearsportsfan.com/2014/10…
In 2002, the FCC granted a monopoly on HD Radio to iBiquity Digital. All manufacturers of receivers must use their chip, and all stations must pay royalties to iBiquity. en.wikipedia.org/wiki/HD_…
In 1895, as part of a public demonstration, Alexander Popov attached his new wireless radio receiver to a long 30-foot pole that he held aloft...during a storm. After being struck by a bolt of lightning he proudly announced to the world that his invention also served as a "lightning detector". en.wikipedia.org/wiki/Tel…
The "University of Twente" let's people listen shortwave-radio on the internet, through their Shortwave Receiver websdr.ewi.utwente.nl:890…
Music on hold was discovered in the 60's when a man noticed garbled music coming through the phone. An exposed wire touching a metal girder turned the building into a receiver for the radio station next door. callsonhold.com/recogniti…
Today I learned of the "First Theremin Concert for Extraterrestrials"; part of an interstellar radio transmission to six solar-type stars in 2001. The concert includes Russian folk songs and works by Beethoven, Vivaldi, Saint-SaΓ«ns, Rakhmaninov, and Gershwin. HD 95128 in Ursa Major is first to receive in 2047. en.wikipedia.org/wiki/Tee…
On 15 August, 1977, US astronomer Jerry Ehman was using the Big Ear radio telescope to scan the sky for possible signals from E.T. He received one strong signal that looked very much like artificial signal. Mystified, Ehman circled it on the readout and wrote: β€œWow!”. en.wikipedia.org/wiki/Wow…
Today I learned about the "Wow! signal", the strongest candidate for an alien radio transmission ever detected, received in 1977, by the Big Ear radio telescope in Ohio. en.wikipedia.org/wiki/Wow…
Twilight Zone creator Rod Serling's final project was Fantasy Park, a 1975 radio concert. It was a 48-hour long rock concert edited together from dozens of separate live acts, including The Beatles. Presented as an actual concert, stations reportedly received calls asking how to get to the show. en.wikipedia.org/wiki/Rod…
Last year (2015), amateur British radio enthusiast, Adrian Lane, called International Space Station (ISS) when it was passing over his home about 200 miles up in the sky at 18,500 miles per hour & received answer from an US astronaut who "welcomed him aboard" biztekmojo.com/001055/01/…
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…
Saying "Roger" at the end of radio conversation (to signify "r" for "received") dates back to Morse code days. popularmechanics.com/tech…
The CIA museum has a smoking pipe designed to receive radio messages and relay them silently to the user's ear by sending vibrations up the user's jawbone. usatoday30.usatoday.com/t…
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…
In 1977 we received a radio signal from space that lasted 72 seconds. To this day, we still don’t know where it came from factualfacts.com/science-…
George Lucas donated the radio rights of the first three Star Wars films for $1 to his alma mater, the University of Southern California. When the shows first aired on KUSC in 1981, the NPR affiliate saw a 40% increase in audience and received thousands of correspondences. scpr.org/programs/the-fra…
The first "hack" was done in 1903 with Radio theatlantic.com/technolog…
The RMS Carpathia only heard the Titanic's distress call because Carpathia's wireless operator, Harold Cottam, was listening to his telegraph while getting into his pajamas, several minutes after his shift had ended. Had he signed off when he was supposed to, there may have been no rescue. en.wikipedia.org/wiki/Har…
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…
A hospital nurse, Jacintha Saldanha, committed suicide on 7 December 2012, three days after receiving and falling for a prank phone call as part of a radio stunt by a prank call from two Australian radio DJs concerning Prince William's pregnant wife. cnn.com/2012/12/07/world/…
We received a radio signal from space that lasted 72 seconds. To this day, we still don't know where it came from. en.wikipedia.org/wiki/Wow…
On April Fools Day 1976, English astronomer Patrick Moore stated to radio listeners that due to "a conjunction of Jupiter and Pluto" gravity would noticeably decrease on Earth. Shortly after, the BBC received hundreds of calls from people reporting they had felt the decrease in gravity. en.wikipedia.org/wiki/Jov…
In 1973 a California radio operator received a transmission from a young boy, "Larry," who was stuck in an overturned truck. An extensive search was launched, but Larry refused to give his last name or whereabouts, and was never found newmexi.co/articles/lost-…
In 2006, amateur German radio operators managed to receive radio signals from the Voyager 1 space probe, which at the time was 14.7 billion km away. en.wikipedia.org/wiki/Voy…
That, in august 1977, a telescope in Ohio pointing at the Sagittarius constellation received a radio signal so powerful and so precise that it is beleived to be artificial en.wikipedia.org/wiki/Wow…
Today I learned about "The Thing", a non-powered microphone created by Theremin and used by the Soviets to spy on the US embassy in Moscow for 7 years bbc.com/news/business-488…
A hospital nurse committed suicide three days after receiving and falling for a prank phone call as part of a radio stunt by a prank call from two Australian radio DJs concerning Prince William's pregnant wife. en.wikipedia.org/wiki/Dea…
A pirate radio DJ received an ASBO barring him from the roof of any building above 4 floors. It is the only ASBO of its kind ever given standard.co.uk/news/asbo-…
Nikolas Tesla had crippling OCD. He would clean his plates with exactly 18 napkins before meals, had an extreme phobia of germs, and claimed he was receiving radio transmissions from inhabitants of Venus or Mars. io9.com/5648455/the-mad-s…
In 1977 The Big Ear radio telescope picked up a 72-second broadcast from interstellar space - originating beyond Sagittarius, the so-called "Wow!" signal is still the only confirmed sound received from deep space that could possibly be an intentional signal sent by entities unknown. weburbanist.com/2010/06/0…
The Arecibo message was a 1974 interstellar radio message carrying basic information about humanity and Earth sent to globular star cluster M13 in the hope that extraterrestrial intelligence might receive and decipher it. seti.org/seti-institute/p…
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 Beatles' first attempt to enter the US market was not received well. When played on radio people would call the station and told them to change the song. ultimateclassicrock.com/b…
A passenger landed a plane after the pilot collapsed. He received landing instructions over the radio and took four passes at the runway before successfully landing the plane. cnn.com/2013/10/09/world/…
The RMS Olympic received a distress call from its sister ship the Titanic. On its way to the scene, another ship radioed it to not come pick up any survivors, as it would panic among the already traumatized survivors to have to be put on a ship that virtually mirror-imaged the Titanic. en.wikipedia.org/wiki/RMS…
-on August 15 1977 we received a 72 second radio signal from outer space and still don't know where it came from. universetoday.com/93754/3…
In 1977 while working at project SETI a man named Jerry R. Ehman received an unidentified radio signal from the globular cluster of M55 in the constellation Sagittarius, near the Chi Sagittarii star group, leading many to believe that the signal was extraterrestrial in nature. universetoday.com/122409/…
In 1977 we received a radio signal from space that lasted 72 seconds. To this day, we still don’t know where it came from m.livescience.com/21171-w…
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…
The Titanic had its own newspaper, called the Atlantic Daily Bulletin, which published stories received over the ship's radio en.wikipedia.org/wiki/RMS…

Please note that this site uses cookies to personalise content and adverts, to provide social media features, and to analyse web traffic. Click here for more information.