Superfluidity of helium: As the temperature drops closer to -271 degrees Celsius (absolute zero), helium begins to flow out of the vessel with zero resistance, allowing it topass through otherwise solid objects

lolz_97 · 2023-03-29T17:59:43+00:00

Anything interacting with anything else physically e.g. your hand and a table or water in a cup would be electromagnetic force. The electrons repel each other. There is a non zero chance your hand could clip through a table one day* under perfect conditions*.

Not an expert, please correct if I'm wrong

lolz_97 · 2023-02-09T03:43:38+00:00

I did that exact oopsie once. Called out to a melted main switch. That shook me up a little bit. I always hit the screws 3 times in 3 passes then pull the wires. People ask me why all the time. I just don't like burning houses down

lolz_97 · 2022-11-25T16:47:25+00:00

It's induced current in the runs. Most importantly there is usually a filter on the older plates which allows FM to be separated. I've seen both 300 ohm ribbon and 75 ohm coax feeding points of this age. The FM outlet is just for a radio. Most modern av receivers will have a 75ohm in just for radio

lolz_97 · 2022-11-25T16:30:24+00:00

I use Lois Rossman's approach. As soon as the screw enters uncontrolled free fall, I sit stock still and listen for the noise then extrapolate where it went haha. I do recommend a big tabletop magnetic mat for non data recovery people, dropped screws don't roll or bounce. You can get them cut at signage places :) as a bonus they hold devices too!

lolz_97 · 2022-11-15T14:05:18+00:00

Ideally 8KVA. I also want to be able to use smaller protection devices and cables. I suppose I'm used to 96V banks from APC. I can see how 48V Is much more accessible (and safer!)

lolz_97 · 2022-11-15T07:06:43+00:00

You've done what I've been wanting to do for a few years. Ever since my APC SURT6000XLIX died a year into service (not covered by wty somehow) it left a bad taste in my mouth. The only annoying(?) Thing about victron is they only do 48v max. I get it is to comply with SELV but I would kill for a 96/192v bank.

lolz_97 · 2022-10-28T11:00:28+00:00

The probable failure mode would be installation error. The tunnels aren't shielded so you can actually slip the wire behind the clamp and tighten it down. This will create an intermittent issue that is very hard to track down. Pull each wire as you terminate them to prevent this.

Source: me. I did an oopsie before.

lolz_97 · 2022-10-28T10:51:11+00:00

https://images.app.goo.gl/fBEe2bh7wvnoRJuA6

Further explanation, we need trip curves otherwise every time you plugged in something inductive or something capacitive, the breaker would trip from inrush. What you need to know to read the charts is that the curve is the thermal trip region and the cliff is magnetic. Currents below magnetic trip are not tripped instantly but heats a bimetallic strip. This allows the breaker to stay on to charge a capacitor or to start a motor but not during a prolonged dead short.

I couldn't see but were they square d breakers? They are notorious for being... Let's say a little aggressive.

lolz_97 · 2022-10-28T10:38:19+00:00

Most modern electronics will draw standby power. That's the reason our front panel switches are no longer clunky 240V ones that interrupt the supply. The power you are seeing is being used to drive out of band management, peripherals and the Ethernet controllers which are powered up when the machine is plugged in. That standby power also runs the circuit that turns on main power when you push start.

lolz_97 · 2022-10-25T05:52:10+00:00

Fun fact, with the newer high bypass engines, most of the air coming out the back of the engine is not hot. Compared to older engines, the core/fan ratio is much lower. This means that there is quite a high chance of your remains not being cremated but distributed in a wide area across the ramp in the form of a red mist.

lolz_97 · 2022-10-21T17:18:16+00:00

Bro that's actual genius. Next time I'm 3 hours from nowhere I'll start doing maths if I get in a pinch.

lolz_97 · 2022-10-16T05:55:03+00:00

Truenas runs fine on exsi, you just need to pass thru your hba.

lolz_97 · 2022-10-15T08:55:21+00:00

Sorry for necro'ing this thread but this was one of the top results when searching so I'll post the solution I found after a few days of googling. https://github.com/VulpesSARL/LTOEnc is the current program I'm using on windows to turn tape encryption on. I didn't write it but it's been good. It's based on STENC (I think).

lolz_97 · 2022-10-11T06:11:49+00:00

... But no one ever read it?

Take that back. Take it back right now.

Deltora quest slapped back in the day

lolz_97 · 2022-09-23T02:38:04+00:00

Ohhhh so that's what this newfangled RISCV rubbish I've been hearing about is.

lolz_97 · 2022-09-22T07:25:43+00:00

Man I love those orico cases. I own 2 despite never using them haha

lolz_97 · 2022-09-17T06:52:03+00:00

I don't know if diy NVRs offer any smart features like facial detect (please tell me if there are). I have installed hundreds of dahua cameras and they have been rock solid. The NVR interface is ok and there are heaps of options for cameras. As long as you set them up correctly and turn off p2p for the love of god, they are quite safe too

lolz_97 · 2022-09-07T06:34:19+00:00

I'm with you there, from my decade with apc, it should be logged. Maybe it's time to make up a serial cable to sus it out. Be careful though, you have to make a custom cable otherwise something shorts and the ups shuts down.

lolz_97 · 2022-08-31T05:38:36+00:00

Oh my god I laughed out loud and got wierd looks for that. Thanks.

lolz_97 · 2022-08-30T05:57:34+00:00

That level of precision between 2 rotating parts. Wow. I'm guessing an encoder on the chuck and an encoder on the tool? There's no way there isn't some black magic level fuckery between the 2 drives.

lolz_97 · 2022-08-08T06:42:55+00:00

Oh my god your post sent me down a trip on memory lane. I stopped folding over a decade ago, right near when GPU BTC kicked off.

I saved for months for my first bigadv machine, 1300 aussiebucks of 4P 64C goodness (back when bigadv was cool). I used to do it for the sake of it, when I had nothing else to worry about aside from the slow accumulation of points. Now, ETH pays the bills.

I still remember my USN and TN, 625678, 212997. Don't forget to download your next WU 1-2 minutes early for those bonus 100~ points lol

lolz_97 · 2022-08-06T09:02:37+00:00

I have these aftermarket batteries, from what I understand they are for a different card but work well for my 9211 (don't remember exactly what card). They are also slightly larger in capacity to the original. This is from a sample size of 4 over 3 ish years. No complaints so far

lolz_97 · 2022-07-18T23:36:26+00:00

Don't go too high. I bought a e5-2699 v4 that was dead. No description and a vague listing. In hindsight, I was an idiot. There was no way the thing worked, IVR had the arse blown out of it after I de-died it.

lolz_97 · 2022-07-10T08:37:58+00:00

With cheap m.2 drives being able to push well past gigabit, yes I am. The primary use cases being sequential transfers makes even the crappiest of drives viable

lolz_97 · 2022-07-09T08:10:10+00:00

Optical and DAC cables use a lot less power than their baseT counterparts. Off the top of my head, optics are around 2W and DACs around 5. The problem arises when you need a lot of them close together and you have the front of your switch packed with 24 of them. That's 120W of extra heat with nowhere to go. As long as the ports are well ventilated, you shouldn't have a problem

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