Difference between revisions of "Talk:3038: Uncanceled Units"
(Add reference to David MacKay's book "Sustainable Energy – without the hot air" which uses these units (and is a great book!)) |
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fridge [[Special:Contributions/172.70.126.147|172.70.126.147]] 14:22, 15 January 2025 (UTC) | fridge [[Special:Contributions/172.70.126.147|172.70.126.147]] 14:22, 15 January 2025 (UTC) | ||
| − | The late | + | The late [https://en.wikipedia.org/wiki/David_J._C._MacKay Sir David MacKay] wrote an excellent book, [http://www.withouthotair.com/ Sustainable Energy – without the hot air] (which is available free online). |
| − | On | + | On [http://www.withouthotair.com/c2/page_24.shtml this page] he talks about the units he uses in the book: kWh for energy ("one unit") and kWh/day for power - becuase it's simple for lay-people to understand - how many units does this appliance use per day. |
It's a good book if any of you are interested in sustainable energy (although it was written in 2008, so some bits might be out of date by now) | It's a good book if any of you are interested in sustainable energy (although it was written in 2008, so some bits might be out of date by now) | ||
Revision as of 14:36, 15 January 2025
DUDE I'M STILL IN SCHOOL RN, WHAT?
(also, the joke is that energy is power*time, so kWh is kJ/s... in an hour Caliban (talk) 13:27, 15 January 2025 (UTC)
I guess not every comic can be a winner. Talking about an appliance using a certain amount of kWH per day is clear and normal. Power gets billed by the kWh, not the Joule. While technically not wrong, wanting "cancel" a sub-part of the commonly-used energy unit kWh and leaving it in deliberately-obscured units most people are less familiar with is the sort of insanity I'd more expect from White Hat than Cueball. 172.70.35.171 13:39, 15 January 2025 (UTC)
- Maybe that is a meta-joke? To frame kWh/day as something crazy by giving that line to whitehat --Lupo (talk) 13:52, 15 January 2025 (UTC)
This is especially funny with US units. My car needs about 5l/100km, or 0.05mm². Now I am wondering how many ft^(-2) my car does... --Lupo (talk) 13:49, 15 January 2025 (UTC)
fridge 172.70.126.147 14:22, 15 January 2025 (UTC)
The late Sir David MacKay wrote an excellent book, Sustainable Energy – without the hot air (which is available free online). On this page he talks about the units he uses in the book: kWh for energy ("one unit") and kWh/day for power - becuase it's simple for lay-people to understand - how many units does this appliance use per day. It's a good book if any of you are interested in sustainable energy (although it was written in 2008, so some bits might be out of date by now)
