On 15/03/2019 23:03, Rod Speed wrote:


"Roger Hayter" wrote in message
...
Rod Speed wrote:

"Chris Green" wrote in message
...
Roger Hayter wrote:
Rod Speed wrote:

Fredxx wrote
Rod Speed wrote

It uses kinetic energy to send a wifi signal to the base.

You were doing well until this point.

That's what it does. No battery no wires.

https://www.amazon.co.uk/Philips-Per...ting-Synthetic
s/dp/ B0748MQWP3/ref=dp_ob_title_light

I'd prefer to call it mechanical rather then kinetic energy, without
further information.* But perhaps he was suggesting that Wifi was not
really an appropriate radio protocol for the purpose?

All the makers and sellers of them call them kinetic for some strange
reason.

That's because that's what they are. They don't use the static force
of the finger on the button, they use the movement of the button.

But the energy supplied is nothing to do with the speed of the press.

Yes, that’s just used to generate a small amount of electrical power.

The energy provided by the finger is force times distance moved.

Wrong with an electrical generator that uses the kinetic energy.

This is not kinetic energy at any stage,

Wrong.

Explain what kinetic energy is?

It shouldn't be difficult unless google is beyond your ability.

or if it is, only internal to the machine.

Irrelevant.

The energy supplied by the operator is not kinetic energy.

Wrong. Just as wrong as your claim that zigbee isnt wifi.

Zigbee is a complete protocol stack and a form of low power, low data
rate radio communication. You can call it wireless if you like.

Wifi is a name given to a specific standard IEEE 802.11, you can call it
wireless if you like. BTW, Wi-Fi is a trademark of the Wi-Fi Alliance.

Only an idiot would confuse the two as being the same.