Heat pumps and air conditioners both work off of the refrigeration cycle. A heat pump is essentially an air conditioner that has a reversing valve to allow the refrigerant to flow the opposite way.
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It’s indeed not neutral. It always takes work to move heat from a cold area to a hotter area, so there’s always energy (and therefore heat) being added every cycle. https://en.m.wikipedia.org/wiki/Heat_pump_and_refrigeration_cycle
Robert7301201@slrpnk.netto Lemmy Shitpost@lemmy.world•And I thought it would be a happy ending for the kid27·6 days agoI just assumed it was fake based on the community.
Robert7301201@slrpnk.netto Games@lemmy.world•What I'm playing 🐭📖 Moss: Book II | You can high-five the mouse!English3·8 days agoI had no idea Moss 2 was out, and it came out in 2022. Instant purchase for sure, but now I have to decide if I’m going to replay the first one. Thanks for the PSA.
Robert7301201@slrpnk.netto Green Energy@slrpnk.net•Duffy to announce nuclear reactor on the moon6·13 days agoThe previous 40kW proposal linked in the article mentions it would allow operation where solar panels aren’t feasible, like permanently shadowed areas where water might be. There’s also the dust problem to solve with solar panels, although this would also be a problem for nuclear reactors since their radiators could become less efficient from dust buildup.
There’s a lot of extra costs associated with making solar panels space worthy. No atmosphere also means no radiation shielding and no cooling. I actually managed to find satellite solar panels for sale: https://www.cubesatshop.com/product/solar-panels/. They have front and back panels but if we assume they didn’t have a back and all panels faced towards the sun it would be ~120W. That gives us $133/W, which means 100kW would be $13.3 million. Unfortunately the mass isn’t listed, so we can’t estimate the launch costs. I don’t have a way to estimate the cost of a fission nuclear reactor on the moon since we don’t know how it would work yet, so this calculation is mostly for fun. That math would change significantly if we are able to manufacture solar cells from lunar regolith.
In nuclear’s defense, we’ve been sending plutonium-238 into space since 1961. There’s been a few accidents, but the fuel casing has been improved so that the later accidents resulted in no leakage. That was in the early days, so we know a lot more about safety now. Do you think the risks are too high for any nuclear fuels in space, or does uranium pose unique risks?
Robert7301201@slrpnk.netto Selfhosted@lemmy.world•ICANN proposes creating .INTERNAL domainEnglish7·2 years ago.localhost is already reserved for the loopback, per RFC 2606, but I agree with you in general. A small network shouldn’t have to have a $10-15/year fee to be compliant if they don’t want to use a domain outside their network.
As other posters have mentioned, .lan .home .corp and such are so widely used that ICANN can’t even sell them without causing a technical nightmare.
Robert7301201@slrpnk.netto Selfhosted@lemmy.world•ICANN proposes creating .INTERNAL domainEnglish9·2 years agoYes, you’re right, RFC 6762 proposes reserving .local for mDNS. I was not aware of this until you brought it up, hence the dangers of using using TLDs not specifically designated for internal use.
I believe he was wearing pants like someone who has to perform a depantsing skit in a play.
Robert7301201@slrpnk.netto Selfhosted@lemmy.world•ICANN proposes creating .INTERNAL domainEnglish57·2 years agoVery few as this ruling would reserve .internal for local DNS only and forbid it at the global level. This is ICANN’s solution to people picking random .lan .local .internal for internal uses. You’ll be able to safely use .internal and it will never resolve to an address outside your network.
Robert7301201@slrpnk.netto Asklemmy@lemmy.ml•Whats something that is only worth getting the expensive version of?2·2 years agoBed adhesion, nozzle clogging, inconsistent extrusion. It was always some issue and it was difficult to figure out the root cause. I kept buying better parts to try and fix things but at some point I decided to cut my losses. Truthfully I don’t know if it was my fault or the printer’s.
Robert7301201@slrpnk.netto Asklemmy@lemmy.ml•Whats something that is only worth getting the expensive version of?1·2 years agoIt’s comforting to know I’m not alone. My Ender3 was a money sink that just kept getting worse. I have no idea why they’re praised so commonly.
Would’ve seen it coming if you sat in front of a mirror.
Are you talking about SMS? Why do you worry about the character limit? Aren’t you going to use the same amount of messages regardless of if you break it up or not?
Robert7301201@slrpnk.netto Godot@programming.dev•Orchestrator: Godot Plugin for visual scripting13·2 years agoYes. This is the community re-adding it as a plugin.
Robert7301201@slrpnk.netto Technology@lemmy.world•Water-based battery "safe, efficient, non-toxic"English8·2 years agoI expected this to be a satirical article for pumped hydro.
If you’re wondering like I was:
King - Mario and Bowser
Queen - Luigi and Bowser Jr.
Bishops - Peach/Daisy and Magikoopas
Knights - Yoshis and Birdos
Rooks - Toads and Goombas
Pawns - Coins and Koopa Shells
I feel like toads and goombas should have been pawns. Thwomp is the perfect rook. I can’t think of a suitable replacement for the Mushroom Kingdom’s rook other than stylizing it like Peach’s castle.
It’s funny, because two male electrical plugs will still pass electricity fine if you put them together.
Robert7301201@slrpnk.netto Mildly Interesting@lemmy.world•An ice sheet collides with the shoreline6·2 years agoConsidering how thick that ice is and how fast it’s moving, this is actually pretty terrifying.
It’s really cool to see in real time an example of how a glacier can erode the terrain though.
Well, that too. The whole CEO personally delivering a cease and desist is a pretty big hint.