4 ms·

>Then a solenoid with a piece of membrane over it would also be solid state. >Why stop there, a servo with a piece of membrane would also be solid state. >Why

>Then a solenoid with a piece of membrane over it would also be solid state. >Why stop there, a servo with a piece of membrane would also be solid state. >Why stop there, a motor with a membrane.. >Piezos All Correct. Even when they are electrically powered, hydraulic and pneumatic servos are not usually liquid-state or gaseous-state electrical devices except for any vacuum tubes or electrolytic components. When the electricity flows only through solid materials like copper, carbon, or silicon, and doesn't (intentionally) flow across things like liquids, air gaps, or evacuated spaces, that's solid-state.

CBarkleyU 4y ago
> All Correct. Says who?
- mort96 4y ago
  Says someone who incorrectly thinks "solid state" here refers to the state of matter and thinks anything that's neither liquid nor gaseous is "solid state".
  - Tostino 4y ago
    But they were so confident about it!
adrianmonk 4y ago
"Solid state" has two meanings: (1) The gaseous / solid meaning relevant for tubes vs. transistors. (2) The mechanical / no moving parts meaning. Two examples of devices that use the second meaning: https://en.wikipedia.org/wiki/Solid-state_storage https://en.wikipedia.org/wiki/Solid-state_storage The SS in SSD means it doesn't have moving parts (platter, head) like a hard drive. https://en.wikipedia.org/wiki/Solid-state_relay https://en.wikipedia.org/wiki/Solid-state_relay The SS in solid state relay means it's not electro-mechanical like a relay. In this case (the cooling chip), the second meaning is obviously the correct one because it is being compared to fans, which have moving parts.
- deleted 4y ago
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