this post was submitted on 28 Apr 2024
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Showerthoughts

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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.

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[–] [email protected] 3 points 6 months ago* (last edited 6 months ago) (1 children)

I've thought about the same shit and that's true lol
Covid lockdown was the best days with climate Hope everyone will understand what's causing global warming

[–] [email protected] 3 points 6 months ago

Global warming lockdown, let's do it 🤣

[–] [email protected] 33 points 6 months ago (3 children)

If only there were these things that grew out of the ground that cooled you home with their shade.. What were they called again?

[–] [email protected] 3 points 6 months ago
[–] [email protected] 8 points 6 months ago

Lamp posts? Radio towers?

[–] [email protected] 14 points 6 months ago (3 children)

If only people who lived in houses understood that not everyone lives in a house.

[–] [email protected] 4 points 6 months ago

That is an urban planning problem

[–] [email protected] 12 points 6 months ago

It is still highly beneficial in term of heat when there is a lot of shade in a city.

The tarmac gets really hot and release that heat for a long time.

[–] [email protected] 13 points 6 months ago (1 children)

+1 although trees can shade the ground around the building and cool the area that way too

[–] [email protected] 7 points 6 months ago

they also convert some of the sunlight turning air into sugar instead of getting warmer

[–] [email protected] 38 points 6 months ago (1 children)

Smart enough to understand heat pumps dumb enough to think it's has that large of an effect.

[–] [email protected] 35 points 6 months ago (2 children)

In cities it actually does have an effect, especially in crowded ones. Millions of people in a relatively small area blasting AC "exhaust" out of their windows heat up the crammed air and in turn the buildings, streets, etc. which increases the heat island effect of cities.

Granted, it's not a huge effect, but it's measurable. First source I could find: https://www.euronews.com/green/2023/08/30/fact-check-is-air-conditioning-making-cities-hotter

[–] [email protected] 6 points 6 months ago (2 children)

see I've been wondering if a heat pump system could heat an oven hot enough to bake bread. use environmental heat to manufacture Wonder Bread or something.

[–] [email protected] 2 points 6 months ago (1 children)

I don't know the answer, but it this did work it would both make the outside of the oven super cold and be so slow to warm up that it would be pointless. Keep in mind that you have to get stuff in and out so air exchange is inevitable, every time you open the door you'd be reducing the heat substantially and it would take a long time to rise back up.

Also my gut feeling is that any practical implementation wouldn't be as energy efficient as you'd hope.

[–] [email protected] 2 points 6 months ago

The other part of the idea is use the heat pump to not only heat an oven to bake bread (or do some other industrial heating process) but have the other end cool some process that produces waste heat, such as a data center or something. Or air condition a warehouse.

[–] [email protected] -1 points 6 months ago (1 children)

I don’t see why it shouldn’t be able to. You might need concentric shells depending on the power of the heat pump.

[–] [email protected] -4 points 6 months ago* (last edited 6 months ago) (1 children)

Huh guess so. But still 2.4 degrees ain't a whole lot (well except on a global scale lol). Thankfully in this situation doesnt really cause additional global warming problems.

[–] [email protected] 9 points 6 months ago (1 children)

Cities are already about 5C hotter than the surrounding countryside. Adding this increase on top, means 7.5C.

4OC in the countryside is already bad, 47,5C in the city is deadly for a lot of people.

I think you underestimate, how deadly heat can be: https://en.m.wikipedia.org/wiki/Wet-bulb_temperature

[–] [email protected] 3 points 6 months ago (1 children)

Wouldn’t those 2.5C already be included in cities being 5c warmer..?

[–] [email protected] 1 points 6 months ago

No, since most cities are not fully air conditioned.

[–] [email protected] 5 points 6 months ago (1 children)

Already happens in a very round a bout tangential way. At least in America, most homes have far more heating capacity than they will ever actually use.

[–] [email protected] 3 points 6 months ago* (last edited 6 months ago)

This doesn't follow the meme or make any actual valid criticism. Furnace use doesn't feed into itself. And furnaces kick on and off based on the thermostat, so sizing with a factor of safety doesn't matter.

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