Найти тему
20 interesting facts about radio 1. The first radiogram in March 1896 was sent by one of the most famous people in Russia — the Russian physicist Alexander Popov. It contained only 2 words: "Heinrich Hertz". 2. In 2009, the hypothesis that bacteria are able to generate radio waves was expressed by French virologist Luc Montagnier. The results of his research confirm the fact that this is possible. 3. The first experiments that contributed to the invention of radio were put by the American dentist Mahlon Loomis. Wireless communication was carried out using kites, which lifted two wires into the air. Already in 1868, he was able to transmit a signal over a distance of more than 20 kilometers. 4. The Eiffel Tower owes its "life" to the radio. It was built specifically for the 1889 World's Fair, and after 20 years it was planned to be dismantled. However, when the radio was opened, it was decided to install antennas on it for longer range and signal strength. This saved the current symbol of Paris. 5. The 1938 radio play based on the book by H. G. Wells "The War of the Worlds" caused panic in some US cities. Many thought they were listening to real news, where it was said that Martians attacked the Earth and burned down the White House. 6. In August 1942, several dozen Navajo Indians were drafted into the U.S. Army. They had a special responsibility to conduct radio conversations in their native language. Japanese military intelligence regularly intercepted radio messages, but they could not decipher them. There were no specialists in the whole country who knew the Navajo language. 7. The famous Nikola Tesla also invested his efforts in the development of radio communications. By the way, he patented a radio transmitter. 8. On April 18, 1930, the BBC listeners did not hear any news on the air, music was playing instead. As the announcers explained later, nothing worthy of the attention of radio amateurs happened that day. 9. Radio Day in Russia is celebrated annually on May 7. 10. A curious incident occurred during a duel of football teams in England in 1940. An impenetrable fog hung over the stadium, and the commentator could not even see the corner of the football field. At the same time, he was informed that the Germans were listening to the broadcast, and if they found out about the fog, they would immediately begin bombing. As a result, he did not show any signs during the match and commented on the match, starting from the reaction of fans in the stands. 11. Thanks to the radio, the word "hacker" appeared – the so-called crackers of secret passwords on radio stations. 12. The radio broadcasts of the famous announcer Yuri Levitan, conducted during the Great Patriotic War, were not recorded at the time of their conduct. But since they were of great historical value, their recording was specially carried out in 1950. 13. In the USA, until 2013, all major state radio stations were not allowed to broadcast on the territory of their own country. The whole point is in the decree that the state radio is aimed at propaganda, and the government is obliged to protect its citizens from any propaganda, even its own (interesting facts about the United States). 14. In the USSR, radio was at the peak of popularity — radio clubs operated at clubs, schools and universities, enthusiasts assembled receivers in an artisanal way. 15. Radio did not die even with the advent of the Internet, because it became possible to listen to it online without any receivers. 16. Birdsongradio radio station continuously broadcasts bird songs recorded 20 years ago by ornithologist Quentin Howard in his garden in Wiltshire. 17. The first broadcasting of radio on the Internet was started by Karl Malamud in 1993. The name of the station was "Internet Talk Radio". 18. At the junction of the 19th and 20th centuries, the steamship "Masens" was wrecked. During the rescue operation, radio communication was successfully used for the first time, thanks to which people were rescued from the sinking ship. 19. The fi
2 года назад
New Podcasting, Radio Course Targeted to University Students
The 90-minute session is being produced in part by the Library of American Broadcasting Foundation College and university students can now learn the ins and outs of the radio and podcasting industries via Zoom. The video, titled “LABF Radio and Podcasting Power Session,” features University of Maryland Reference Specialist Michael Henry hosting a virtual walkthrough of the library, followed by a conversation about the collection and the many key moments in U.S. history that have been captured by radio and television broadcasters over the years...
2 года назад
Successes in our science. In our science with my friend, we finally reached some results on our science of calculating the influence of external factors on the accuracy of measurements of the GPS module. These graphs show in meters how much the readings jump. The largest spread was in the time interval of 6-7 minutes. After viewing the recording of the experiment, we came to the conclusion that this is due to the rainy weather that was at the time of the experiment. And so the average deviation of the module measurements was 20 cm, which is very good for non-professional measuring devices. Also, for greater measurement accuracy, we used 2 boards: a large and a small one. And as you can see from the graphs, the large board works much more accurately. Both boards are Fastrax UC530M boards.
2 года назад
Extending the life of the LED lamp
Chinese LED lamps do not have a long service life. The main reason for this is that a current flows through the LEDs equal to or even exceeds the maximum permissible current for this type of LED. Therefore, in order to significantly extend the service life of LED lamps, it is necessary to reduce the current through the LEDs. To work on the completion of the LED lamp, I will need: a lamp repair stand, a multimeter and a radio installation tool. The lamp participating in the revision is of the ECOLA brand with a power of 12 watts...
2 года назад
3D printing can now manufacture customized sensors for robots, pacemakers, and more
A newly-developed 3D printing technique could be used to cost-effectively produce customized electronic "machines" the size of insects which enable advanced applications in robotics, medical devices and others. The breakthrough could be a potential game-changer for manufacturing customized chip-based microelectromechanical systems (MEMS). These mini-machines are mass-produced in large volumes for hundreds of electronic products, including smartphones and cars, where they provide positioning accuracy. But for more specialized manufacturing of sensors in smaller volumes, such as accelerometers for...
2 года назад
But this video shows how cool things can be done with this thing, I hope in the future I will also get such an experience. Raspberry Pi at SiliCon with Adam Savage 2022 - YouTube
2 года назад
The code, on the Raspberry PI, which shows the real time.
This is a board that can replace a full-fledged computer, with all the necessary functions and its own full-fledged operating system. AND SO... My friend and I have taken up scientific work, which is in no small way connected with this device. And just the other day we connected this device to a computer monitor and learned how to write programs on it...
2 года назад
Do you know anything about Raspberry pi? Here is a cool post from the official website, where everything is explained coolly. Read it, it's a very interesting thing. What is a Raspberry Pi?
2 года назад
My first radio-electronic device at the university.
Quite recently, literally six months ago, my group and I finally began to study how to solder, how to attach parts to each other, etc. And even though I already knew how to do a lot of this. But I also found a lot of new things for myself...
2 года назад
A little information about me and the profession of radio engineer.
Hello everyone, my name is Niyaz and I am a student of the Faculty of Radio Engineering at KNITU-KAI University. After a grueling year of studying the exam assignments, after long sleepless nights and a ton of coffee, I finally got to study at the university of my dreams. And since I'm more of a technician and I love exact sciences, I chose one of the most popular engineering specialties - Radio Engineering. Radio engineering is a science that studies electromagnetic vibrations and radio waves,...
2 года назад