Quirky Science
aktuálne záležitosti, politika, E3, S1606200030, 2015
Quirky Science
E04 A man with an ear for music, one of the first to try teaching the deaf how to speak, thought he could build a "harmonic telegraph". He had this idea that several notes could travel through a wire simultaneously, instead of the one Morse code that the telegraph could transmit. He thought this to be possible because he misinterpreted the writings of a researcher writing in German - a language he did not know. - And would later describe his misinterpretation as a "very valuable blunder". The man was Alexander Graham Bell and he invented telephony. The big question is: what happens in that wire? How can voices travel? Bell and his assistant eventually proved that different tones would vary the strength of an electric current in a wire. In fact, it's the vibrations of the voice that determine the strength of the current. His invention caused a lot of fuss - yet it took years before people comprehended the scale of it: before the widespread use of the phone - whom were you going...
Mehr...
Beschreibung
E03 In contrast with popular belief, Edison did not invent the light bulb. Many people contributed to the invention. Mind you, the first lamp was invented around 70,000 BC. Once upon a time we had limelight, which was actually quite unsafe, and then there were arc "arc lamps" - shedding light that blinded movie stars up to the point where they had to wear sunglasses. What Edison did was improve the light bulb to become a practical, affordable and safe product. He tested over 5000 filaments to make the bulb last: from bamboo fiber to a hair out of an assistant's beard. At the same time others were working on light bulbs made with gasses, which we now know as energy efficient lamps. Modern-day lighting innovations are quite startling, a lot of them - we can't even see with the naked eye… Lasers, for example. For the longest time it was merely a pet-theory of the grand Einstein. Nobody knew what to make of this idea that "atoms could release their excess energy as light" When the...
TV Zäitplang
| Kanal | Zeit | Titel |
|---|---|---|
 |
Samschdeg, 00:30 | Quirky Science |
|
Samschdeg, 18:25 | Quirky Science |
|
Samschdeg, 18:55 | Quirky Science |
|
Sonndeg, 18:25 | Quirky Science |
|
Sonndeg, 18:55 | Quirky Science |
|
Dënschdeg, 00:30 | Quirky Science |