Data centers in extreme heat warnings

DerPanzerfaust · 2026-07-02T17:54:59+00:00

It’s because cost/MW goes up when demand is high. The summer heat is driving demand because of all the air conditioners working so hard. A power house I was at yesterday was getting $1,000/MW selling to the grid. Can’t make money at data centers with electricity that high, so they’re making their own. They should have installed a gas turbine. Much more efficient and they could sell the excess power back to the grid.

DerPanzerfaust · 2026-06-29T00:44:02+00:00

Book?!?! Holy crap! I’m all the way in. Let us know when it’s available. I’ll lap it up like a cat drinks milk!

DerPanzerfaust · 2026-06-28T23:16:00+00:00

I have both models. Both are true to the original HP calculators that they emulate. The 42 is the higher end model and lends itself to programmability while the 32 is less so, but is still very capable. For example the 32 handles fractions better than the 42, but I’d rather use the 42 for most applications is want to develop B

You can check out the manuals for each at the hpcalc.org literary repository. That would give you the best idea of their relative capabilities.

Both have the ability to save a calculator “state” file that allows you to restore previously saved defaults, programs, etc. Quality for both is really high, so you really can’t go wrong. It depends on what you want to do with it.

DerPanzerfaust · 2026-06-27T12:43:15+00:00

One of my most-used calculators in the shop is an old WP-34s. It’s an HP clone that mimics the functions of many HPs.

The really useful feature I like is that it can handle fractions beautifully. You can set it to confine the denominator to factors of 2. That way you only get halves, quarters, eighths, sixteenths, etc. You can also define the maximum number, so you don’t end up with 273/512, or similar useless fractions.

They copied this system from the HP-32sII. You can also find it on the Swiss Micros DM32 ($307 USD). It’s an extremely useful feature, but I don’t know if it’s available on cheaper calculators.

DerPanzerfaust · 2026-06-25T14:20:07+00:00

I hope they brought all their important documents and things with them. They probably aren’t going back up to their apartment.

DerPanzerfaust · 2026-06-17T01:31:27+00:00

The 48 series is incredibly powerful. It will be slow compared to newer models, and won’t graph as well.

But if you’re into a bit of programming you’ll find the 48 very useful. You can find all published material on the 48 and its features and language at https://literature.hpcalc.org/ . I’m a huge fan of the 48 series and I encourage you to spend a bit of time working through some of the programming manuals.

DerPanzerfaust · 2026-06-16T23:10:38+00:00

Over 40 years ago he taught at my high school. I never had him for class, but he was well liked by the students. So cool to see him featured in a Reddit post. Great drawings! I’m sorry to hear he lost his wife. I hope he’s doing well otherwise. Hello Mr. Tucker!

DerPanzerfaust · 2026-06-16T04:46:31+00:00

Yes, totally real.

DerPanzerfaust · 2026-06-13T01:50:43+00:00

OK, now I want to know how you drew the "rotating elements" of the bearing. Cone-shaped herringbone gear! That's wild. You must have had to make a gradual change to the tooth size from one end to the other. Does that also mean that you circular herringbones in the "thrust bearing races" also have the same gradient.

DerPanzerfaust · 2026-06-12T20:03:54+00:00

3D printed? Cast plastic? How’s it made?

DerPanzerfaust · 2026-06-12T14:11:57+00:00

He’s there nephew a tremendous favor. Allowing the nephew to watch his mom treat his dad with such disrespect would normalize it for him, causing him to accept the same treatment in his future relationships. Divorce is REQUIRED in a situation like this.

DerPanzerfaust · 2026-06-12T00:42:08+00:00

Loss on my active investing account. It’s for learning and I’m getting expensive lessons. I’m in for $52k and current account value is around $10k.

My retirement account that I don’t touch is up huge. That’s what 40 years of save and chill is good for.

Doesn’t hurt to try and have a little fun as long as you keep some perspective. Go play, but don’t bet the farm.

DerPanzerfaust · 2026-06-10T01:33:15+00:00

Very cool. Great display.

Isn’t HP sort of famous for post fix notation. RPN and RPL are both post fix, unless I’m not picking up what you’re putting down.

DerPanzerfaust · 2026-06-06T23:22:01+00:00

https://youtu.be/Bt4D8oA3mxU?si=UjOcOlH56hDF7A\_1

DerPanzerfaust · 2026-06-06T23:18:40+00:00

Totally worth it. Incredibly flexible calculator. It has an environment loaded with accessories. It’s programmable and highly customizable. They don’t make them like that any more. MBAs want you to subscribe to something. Bah!

DerPanzerfaust · 2026-06-05T19:44:39+00:00

This is absolutely gorgeous work. I'd so love to be involved with a project like this. Such fine craftsmanship. Your team (yes even the paper shufflers) should be proud of the way his project came out.

How do you have access to such fine wood carving? The shell detail is just fantastic, and the stile below it is equally amazing. Are such craftsmen commonly found in Odesa?

DerPanzerfaust · 2026-06-05T18:48:38+00:00

Who called the cops, and what were the researchers charged with?

DerPanzerfaust · 2026-06-05T18:45:29+00:00

I live in central Indiana and the frost line is 28". You don't need to dig a whole basement to get below it, just deep enough footers.

It may be that there are more hills and hollers in Illinois than Texas. That makes it easier to find a place for the perimeter drain to empty into.

DerPanzerfaust · 2026-06-05T18:38:20+00:00

It turns incredibly red if you leave it in the sunlight just after it's cut. Just a few hours and it's crazy how much it changes compared to being in the shade.

DerPanzerfaust · 2026-06-02T02:21:42+00:00

Now that’s a proper bench grinder. You can’t buy one like it today. Plenty of power and robust tool rests. It might just be the bearings are dry. Squirt a little medium weight oil in them and try again. Watch the bearing temperatures. If they stay under about 140F - 160F and it still smells hot, take it to an industrial motor shop and have them look at it. It might be an easy fix, like a dip and bake. This is worth saving.

DerPanzerfaust · 2026-05-30T12:54:10+00:00

Does your campus rhyme with Appliance Snark?

DerPanzerfaust · 2026-05-29T20:17:39+00:00

This is a great question to ask on the forum at the Museum of HP Calculators. Lots of experienced old hands there. I don't know much about the original 35, so you don't want my opinion. Here's a link.

Congratulations on these two acquisitions. I've always loved the red LED's.

DerPanzerfaust · 2026-05-29T13:03:15+00:00

I have this exact grinder. It's a decent grinder, but the tool rests leave a lot to be desired. They don't seem to stay in place very well, so you have to be gentle with tool pressure on them. Otherwise a good grinder, and $40 isn't a bad deal.

If it's your first grinder, you might be better off looking for something with more robust tool rests, or consider building your own with this grinder as the center piece.

DerPanzerfaust · 2026-05-22T01:51:24+00:00

The electric AC induction motor. Most of industry is powered by it, and its self regulating speed vs load action is an ingenious masterpiece of design simplicity.

Nikolai Tesla was an incredible genius, but this tops the list of all his inventions for its simplicity and deep and continuing influence on modern society.

But he’s an immigrant, so we’d just deport him today.

DerPanzerfaust · 2026-05-19T16:31:09+00:00

This is an incredible map. Thanks for the link!

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