History of radio
The early history of radio is the history of technology that produced radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became...
History of radio - Wikipedia
Nikola Tesla's Amazing Story
Lightning storms and stolen radios: The true story of the War of the Modern Wizards.
German parents told to destroy Cayla dolls over hacking fears
Researchers say hackers can use an insecure bluetooth device to listen and talk to a child.
2017 Chevy Malibu SS Specs | Cars | Specs | Prices
2017 Chevy Malibu SS Specs - The new 2017 Chevy Malibu is a development of extraordinary autos unbounded in headway and
The Astonishing Extraterrestrial Messages Of Nikola Tesla
July 20, 2015 - Tesla believed he received alien messages at the end of the nineteenth century It is not a secret that there are numerous inventions of Tesla that have been attributed to other “invent...
Russian Scientists Raising Funds To Rebuild Tesla Tower, Satisfy World Energy Hunger!
June 30, 2015 - If only Nikola Tesla (inventor of AC or alternating current that is used world-wide, the fluorescent tube that we use to this day ) were alive to see this now; a group of Russian physi...
Sony world photography awards 2015: the winners – in pictures
From Bolivia’s women wrestlers to grief wreaked by Ebola and the ghosts of Bangladeshi dead, here are the powerful and memorable images by the professional winners of the Sony world photography awards
Turn Your Smartphone Into A 150x Microscope
One of my favourite activities as a kid was to muck about with my dad's microscope, poring over ancient (in my mind) slides bearing legends such as "urea", "bee pollen" and "spores of smut". The teeny...
'Mobilegeddon' Could Be Bad News For 40% Of Top Websites
If your website traffic plummets suddenly Tuesday, you can blame it on "Mobilegeddon." Google, which dominates online search, is launching an algorithm to favor sites that are "mobile-friendly." This...
Nikola Tesla; The hidden secrets
Nikola Tesla was a Croatian-American Inventor, electrical engineer, mechanical engineer, and futurist best known for his contributions to the design of the modern alternating current (AC) electricity ...
8 Things You Didn't Know About Nikola Tesla
Nikola Tesla was born around midnight, between July 9 and July 10, 1856 during a fierce lightning storm. According to family legend, midway through the birth, the midwife wrung her hands and declared ...
Tesla's Amazing UFO
Nikola Tesla is considered one of the most innovative and mysterious men who ever lived. If Tesla hadn’t invented and researched everything he did in his time, our technology today would be considera...
Google shakes up telecom by expanding into wireless
Google executive Sundar Pichai insisted that the "project" was not a threat to traditional telephone and Internet service providers.
The Possible Connection Between Nikola Tesla and ETs | Earth. We are one.
Nikola Tesla was one of the greatest minds of all time and was considered to be the father of the 21st century. There were rumours that Tesla received his inventions from E.T. sources.
Sony Releases Google Glass Alternative
With Google back at the drawing board for Glass, Sony has seized the opportunity by releasing its own version of futuristic eye wear.
Tesla: Master of Lightning
Few inventors contributed more to advances in science and engineering in the early 20th century than Nikola Tesla. As one of the Fathers of Electricity, Tesla did groundbreaking work on alternating cu...
Invention of radio
Many people were involved in the invention of radio in its current form. Experimental work on the connection between electricity and magnetism began around 1820 with the work of Hans Christian Ørsted,...
Invention of radio - Wikipedia
Wireless telegraphy
Wireless telegraphy is the transmission of electric telegraphy signals without wires (wirelessly). It is now used as a historical term for early radio telegraphy systems which communicated with radio ...
Wireless telegraphy - Wikipedia
Morse code
Morse code is a method of transmitting text information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment. The ...
Morse code - Wikipedia
Spark-gap transmitter
A spark-gap transmitter is a device for generating radio frequency electromagnetic waves using a spark gap.These devices served as the transmitters for most wireless telegraphy systems for the first t...
Spark-gap transmitter - Wikipedia
Alexanderson alternator
An Alexanderson alternator is a rotating machine invented by Ernst Alexanderson in 1904 for the generation of high-frequency alternating current for use as a radio transmitter. It was one of the firs...
Alexanderson alternator - Wikipedia
Coherer
The coherer is a primitive form of radio signal detector used in the first radio receivers during the wireless telegraphy era at the beginning of the 20th century. Its use in radio was based on the 18...
Coherer - Wikipedia
Frequency modulation
In telecommunications and signal processing, frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave. (Compare with amplitude modu...
Frequency modulation - Wikipedia
Antique radio
An antique radio is a radio receiving set that is collectible because of its age and rarity. Although collectors may differ on the cutoff dates, most would use 50 years old, or the pre-World War II E...
Antique radio - Wikipedia
Crystal radio
A crystal radio receiver, also called a crystal set or cat's whisker receiver, is a very simple radio receiver, popular in the early days of radio. It needs no other power source but that received sol...
Tuned radio frequency receiver
A tuned radio frequency receiver (or TRF receiver) is a type of radio receiver that is composed of one or more tuned radio frequency (RF) amplifier stages followed by a detector (demodulator) circuit...
Tuned radio frequency receiver - Wikipedia
Regenerative circuit
The regenerative circuit (or regen) allows an electronic signal to be amplified many times by the same active device. It consists of an amplifying vacuum tube or transistor with its output connected...
Regenerative circuit - Wikipedia
Superheterodyne receiver
In electronics, a superheterodyne receiver (often shortened to superhet) uses frequency mixing to convert a received signal to a fixed intermediate frequency (IF) which can be more conveniently proces...
Superheterodyne receiver - Wikipedia
Old-time radio
The old-time radio era, sometimes referred to as the Golden Age of Radio, refers to a period of radio programming in the United States lasting from the proliferation of radio broadcasting in the early...
Old-time radio - Wikipedia