On Sat, Feb 20, 2016 at 4:37 PM, Jed Rothwell <jedrothw...@gmail.com> wrote:

> H LV <hveeder...@gmail.com> wrote:
>
> In my question I said if you only had an LED. That implies a resistor is
>> not available.
>>
>
> Well, in that case, you simply prevent any light from leaving the LED.
> Cover it with something. Then put it in a box with a very sensitive light
> meter to conform that nothing is escaping from it.
>
> You can generate heat from a mechanical device such a wind-up toy with
> similar methods. That is a classic 19th century experiment.
>
> I don't see how this would arise in the real world, but perhaps it might.
> Similar problems arose with the development of silicon integrated circuits.
> Silicon is not a good choice of materials for many cell components such as
> resistors. It had to be used, because it is a semiconductor, but it did not
> lend itself to that purpose.
>
> - Jed
>
>
​Suppose Rossi's Ecat is an inefficient heater, which he made more
efficient by employing electrical, magnetic and temperature tricks.
It still might be remarkable if it involves nuclear activity of some sort.

Harry

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