248

If a machine is never 100% efficient transforming energy into work because part of the energy is converted into heat, does it mean an electric heater is 100% efficient? @showerthoughts@lemmy.world

you are viewing a single comment's thread
view the rest of the comments
[-] threelonmusketeers@sh.itjust.works 1 points 8 months ago

it has an LED and fan

If you can't see the light or hear the fan from outside the room you are using the heater in, that energy has also become heat.

[-] Xeroxchasechase@lemmy.world 1 points 8 months ago

Yeah, but than, does it really makes a sound?

[-] threelonmusketeers@sh.itjust.works 2 points 8 months ago

At the expense of ruining the joke, yes it does. Anyone inside the room would be able to hear the sound.

And if no one is in the room to hear if there is a sound or not, you might want to turn the heater off to conserve energy.

[-] Xeroxchasechase@lemmy.world 1 points 8 months ago

Oh I didn't think of it!

this post was submitted on 17 Feb 2024
248 points (97.3% liked)

Showerthoughts

29525 readers
372 users here now

A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.

Rules

  1. All posts must be showerthoughts
  2. The entire showerthought must be in the title
  3. Avoid politics (NEW RULE as of 5 Nov 2024, trying it out)
  4. Posts must be original/unique
  5. Adhere to Lemmy's Code of Conduct

founded 1 year ago
MODERATORS