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| Tesla's opinion of radio waves |
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| RJSV:
Regarding Tesla maybe often extreme, as an inventor, reminded me of an older saying: 'With genius, often comes a little madness.' And, Tim, that's interesting point, about Filter Networks being novel, in those early days (1890's). There was no field of electrical devices that were obvious doing filter alterations ...or even signal theory itself, didn't have much obvious application. |
| mag_therm:
--- Quote from: RJHayward on August 28, 2022, 07:10:26 am ---Regarding Tesla maybe often extreme, as an inventor, reminded me of an older saying: 'With genius, often comes a little madness.' And, Tim, that's interesting point, about Filter Networks being novel, in those early days (1890's). There was no field of electrical devices that were obvious doing filter alterations ...or even signal theory itself, didn't have much obvious application. --- End quote --- Before Tesla was promoting the wireless electrical energy transmission around 1890, Oliver Heaviside ( also a bit eccentric) had published the telegraphers' equations in 1876. This pair of partial DEs used the 4 primary distributed components and showed the distortion (spreading out) and attenuation of pulses in long telegraph cables. So he knew then that the distortion could be reduced by increasing inductance,(series loading coils). After initial rejection of that by British Post Office, this was later used to increase data rates in transatlantic cables. Along with the losses in the early telegraph cables there are everyday experiences of the 3D diffusion functions, eg church bells, train whistles, fireplace heat, candle light etc. So surely there must have been some skepticism of Tesla's promotions? |
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