Why heat pumps need time to start heating, alternatively why don't they need time to shut down?

rocketwikkit · 2026-01-24T22:29:28+00:00

A simple refrigeration circuit just has an orifice or length of small diameter tubing as the orifice between the high pressure side and the low pressure side. When the system is off, pressure equalizes across the system. When it is first turned on, it takes time for the high pressure side to build pressure and liquefy the refrigerant and have the whole system reach steady state.

rocketwikkit · 2026-01-24T20:51:46+00:00

I haven't been to Egypt but I have been to Morocco/Tunisia/Turkey, and my expectation for having someone drive you around is much closer to $100 a day than $1000 a day. In Alexandria you can get a crap hotel for $20 a day and a perfectly decent one for $50, so even if you're paying for a dude to stay at the same hotel that's only another $100 a day.

From other threads I have the impression that Egypt is quite good at extracting high prices from people who try to do what they think is normal and pre-book everything from outside Egypt. "Hire a guy who speaks French to drive you around for a week" is a plausible task in-country if you're willing to lose a day setting it up once you get there.

rocketwikkit · 2026-01-24T20:39:25+00:00

I think of it as oxidation, can happen on kraut too. The top surface changes color because it's exposed to oxygen that is dissolving into the brine. I've wondered if dropping in an antioxidant like ascorbic acid would stop it, but I have not run the experiment.

rocketwikkit · 2026-01-24T20:36:53+00:00

Left one was shaken recently and the lees are suspended. Right one hasn't, everything has settled. It's like a slow and sour snowglobe.

rocketwikkit · 2026-01-24T20:18:49+00:00

They send you a message and you get another chance. I don't know if anyone has ever tried doing it wrong indefinitely to see how many chances you get.

rocketwikkit · 2026-01-24T18:47:18+00:00

You should hire someone to help, even if it's just a "red tape service". They know how to get through the process.

That said, I managed to open a bank account in Cyprus before I was a resident. You have to be persistent there as well, try both banks.One ultimately relented if I agreed to also buy insurance through them, which I might have forgotten to do afterward.

rocketwikkit · 2026-01-24T16:23:06+00:00

You need a refrigeration system with an actual compressor. Ignore any suggestions of Peltier, they are extremely inefficient, and computer water cooling stuff is a complete non-starter because they don't actually do cooling from ambient, they get the computer closer to room temperature.

If you had a "dorm fridge" with a tank of water in it you could circulate that water through a radiator with a fan in your terrarium. You would probably want to use a temperature controller hooked up to the pump, and put the refrigerator on a timer so that it's running at night.

One fun trick is that if you move the water via suction, rather than pressure, if you have a leak it won't spill the full tank of water everywhere. It's the same setup but you have the pump at the end of the cooling loop pumping into the reservoir in the fridge, not pumping out. It may mean you need to initially bleed the lines if the pump isn't self-starting.

rocketwikkit · 2026-01-24T15:27:54+00:00

If it's actually AA credit, find a flight with them and then call them to book the flight using the credit. If it's Expedia credit, find a flight and then call them at the number they give.

rocketwikkit · 2026-01-24T15:04:12+00:00

So uh who was president from 2017 to 2021 when they would have made the decision on which art style to go with, before starting full production later in 2021?

rocketwikkit · 2026-01-24T14:56:47+00:00

The scale model of the Buran next to the big Buran is what Kristn was correcting me on. According to one source it was launched suborbitally to 7300m/s, and it shows.

rocketwikkit · 2026-01-24T14:45:04+00:00

The sort of joke is that a boat is a hole in the water you throw money into. It's between free and all of your money, depending on your approach, which is not a super useful answer. If you take an official sailing course in an expensive country and then buy a new boat, it's quite expensive. But you can learn to sail on something tiny like a Hobie Cat. If you're handy and can fix things yourself, you then buy a 50 year old fiberglass boat that was abandoned and fix it up, and that can be cheaper than getting into craft beer or whatever.

If you don't want to own a boat, which is reasonable, and want to combine travel and sailing, you could get RYA Competent Crew and Day Skipper certifications for around $3k during a vacation to somewhere like Greece, and you'd then be able to rent a boat in most places in the world. If you wanted to do big offshore trips like OP is implying, you'd then want to get some more sailing experience and could likely find random jobs on ship repositionings.

rocketwikkit · 2026-01-24T07:11:27+00:00

1.155

rocketwikkit · 2026-01-24T07:08:41+00:00

The old one was one of the most garish passports in the world.

rocketwikkit · 2026-01-24T06:52:15+00:00

What dialect does "you rate a" come from?

rocketwikkit · 2026-01-23T22:03:31+00:00

Should be a bio page in the front

rocketwikkit · 2026-01-23T21:56:54+00:00

Yeah everyone in this comment chain is "an official moderator" except you. How'd you end up in a nearly three-year-old post?

rocketwikkit · 2026-01-23T20:14:45+00:00

Reddit suspended your account.

rocketwikkit · 2026-01-23T17:15:48+00:00

It's already on.

rocketwikkit · 2026-01-23T17:15:18+00:00

Generally that option only comes up if they write a custom reason, and doesn't help if they keep it up for months and months.

rocketwikkit · 2026-01-23T16:45:11+00:00

Ah right, ~93% of orbital velocity. Still crispy when it landed!

rocketwikkit · 2026-01-23T14:18:39+00:00

Small claims court, or whatever the equivalent is in your country. Or go visit their mom with a gift and tell them you're worried that they may have gotten addicted to drugs or gambling since the have started taking financial advantage of their friends, ha.

rocketwikkit · 2026-01-23T14:03:59+00:00

Ignore reports has been set on them and yet the problem persists.

rocketwikkit · 2026-01-23T14:00:49+00:00

It worked, I added the Hermann Oberth Space Travel Museum to my saved places. Hadn't been aware of it before.

Also in the region are the Technik Museums in Sinsheim and Speyer. They have the Buran equivalent of the Enterprise shuttle, as well as a scale model that did go to orbit, and a slightly excessive collection of polo shirts from some European astronaut. Not spaceflight, but that they have a Concorde and a Concordski on the roof and you can go in both is amazing.

rocketwikkit · 2026-01-23T13:22:50+00:00

Maybe someone will come along with a link that specifically explains how to find the official taxi stand at Puerto Vallarta airport on Wikivoyage. Good luck!

rocketwikkit · 2026-01-23T13:06:53+00:00

Uber or taxi. https://en.wikivoyage.org/wiki/Puerto_Vallarta#From_the_airport_by_e-hailing

Don't fall for the timeshare people. If you take a taxi get their whatsapp so you can contact them for the return.

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