| General > General Technical Chat |
| "Veritasium" (YT) - "The Big Misconception About Electricity" ? |
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| SandyCox:
The current discussion is about a coaxial cable. |
| aetherist:
--- Quote from: dannybeckett on February 21, 2022, 10:19:23 am ---What happens when you have less than 1m distance between the wires? 0.1m / c? Nothing can travel faster than light? --- End quote --- Do a search for Howardlong on this thread. He measured for 24mm, about 80 ps i think it was, which is exactly 24mm/c. But re faster than light, gravity is over 20 billion times faster than c. And Wolfgang Gasser found that radio waves propagated at about 5c at a distance of 4m. |
| SandyCox:
24mm/80ps = 3e8m/s :palm: |
| aetherist:
--- Quote from: SandyCox on February 21, 2022, 11:42:52 am ---24mm/80ps = 3e8m/s :palm: --- End quote --- Yes 1000 mm in 3.3 ns is the same as 1 mm in 3.3 ps which is the same as 24 mm in 80 ps. And the speed of light here is the speed of light in air. The little bit of poly on the pair of wires (ladder antenna cable) would only add say 1 mm at 2c/3, not worth mentioning. Actually i did measure it to be 85 ps rather than Howard's 79 ps. |
| adx:
How fast does the tip of a laserpointer beam travel if it is swung around rapidly? A leprechaun is running at the speed of light - how fast do his legs go? |
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