ChaoticNeutralCzech
@ChaoticNeutralCzech@feddit.org
- Comment on hot midi trax 1 day ago:
Tracker? No, this is a copy of MATLAB '96 + Signal Processing Toolbox.
- Comment on Tune a fish 3 days ago:
A Czech reporter’s name is Jan Tuna. Please keep saying “tuna fish” for his* sake.
* he/him, Jan is a common male name here derived from John, the female counterpart is Jana
- Comment on Home renovations 3 days ago:
I’ll be assuming the pole is not grounded (electrically isolated from Earth, the earth pin of sockets, radiators, plumbing etc.)
The difference is not DC vs AC but between it being connected across two screws, for which a high current source (hundreds of amps at negligible voltage) will heat the metal up - as opposed to connecting a voltage (like 120V mains for AC or 170V single-diode-rectified & smoothed mains for DC) referenced to ground to the pole. The former will draw a lot of current from the source through the screws and metal between them, heating it up. A car battery could briefly deliver hundreds of amps and several kW, making them glow red hot. The latter will create a potential between the pole and ground, which will only draw current when a load is connected between the pole and the ground. For AC, a person’s body’s capacitance to ground, even with insulating shoes, is enough to feel a tingle. For AC or DC of sufficient voltage (above 60 V), they will get a shock if they touch ground and the pole, completing the circuit.
- Comment on Rawdogging life 5 days ago:
And salty. Not good for robotic joints & electronics
- Comment on the news are so bad at reporting epstein files i wonder why 6 days ago:
If they don’t prosecute child sex criminals, we can’t expect borderline child casino operators to face consequences either. But Bobby Kotick (Activision CEO at the time) now has a scapegoat.
- Comment on Dogs welcome 6 days ago:
You are right but the field is not too far off, geologists should know where to obtain info on street lamps’ hellhound-proofness.
- Comment on the news are so bad at reporting epstein files i wonder why 6 days ago:
Everyone will be blaming Epstein for everything. Often justifiably, but that also takes away responsibility from people who can and should suffer consequences.
- Comment on Dogs welcome 1 week ago:
They’re geologists, they should know if the lampposts outside are anchored sufficiently.
- Comment on Couldn't have said it better 1 week ago:
Did they get Playstation done and then just not release it? That’s what I meant.
- Comment on Couldn't have said it better 1 week ago:
Of course they’re going to release GTA 6 once it’s done, what else would they do?
- Comment on Save as PDF 1 week ago:
Similarly, Android has distinct “share” and “open with” menus but I mostly use the former as the latter.
- Comment on How does this thing work? (wrong answers only) 1 week ago:
Because it would go up to about 100 rpm and people at the store would know it performs poorly
- Comment on 50ohm goes brrrrrr 1 week ago:
- Comment on There's still life left in them! 1 week ago:
Sometimes people on Lemmy rehost pictures because they notice the original’s domain (usually catbox.moe or the pict-rs media host of OP’s instance) is blocked by some ISPs
- Comment on France is next 1 week ago:
You have no idea
At least the biggest country to refuse 25 kV AC electrification is gone
- Comment on Man posts his incorrect opinion online 1 week ago:
I take one off and hop. Or throw a rug on the floor and shuffle.
- Comment on This is real. Big controversy regarding cheating in Olympic events because of the size of suit worn by jumpers 1 week ago:
The entire suit is 3D, in which case it makes more sense to talk about surface area, but that is measured in cm². The “circumference” must apply to the “sail” shadow.
- Comment on Anyone old enough to have used this before GPS? 1 week ago:
We don’t use nearly as many genericized trademarks where I’m from. I know that several publishers used this technique to make a road atlas of the Czech Republic in the 90s and 00s.
- Comment on This is real. Big controversy regarding cheating in Olympic events because of the size of suit worn by jumpers 1 week ago:
Um… That part is concave so adding material (area) decreases circumference.
- Comment on Anyone old enough to have used this before GPS? 1 week ago:
The most common ones were books that you’d flip east/west through, or skip to the indicated page for north/south, right?
- Comment on To USB, or not to USB 2 weeks ago:
You can use a crap old PC with a fresh OS install, then wipe it. Or a DVD player if you only need the file list (those can usually only open JPGs, GIFs, MP3s, and MPGs or AVIs with one of the video codecs allowed on VCDs/DVDs).
- Comment on lightbulbs 2 weeks ago:
The wavelength has negligible effect on shadow geometry. What do you mean? Also, sunlight and daylight is pretty much the same thing.
- Comment on lightbulbs 2 weeks ago:
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- Comment on lightbulbs 2 weeks ago:
It does not help that some people pronounce LED as “led”, or “ice” in Slavic languages. And “led lampa” is a homonym of “letlampa” (bunsen torch).
- Comment on lightbulbs 2 weeks ago:
I’m not saying it’s a bad idea, I have a red bulb too. It’s “handmade” by removing thick red rubber from a “golf ball” decorative 7W CFL and stretching it over a similarly-sized 6W 2700K LED that has instant start and higher light output. It is not as monochromatic as pure red LEDs, I think it’s close to what the phosphor-based red ones emit but those are marketed as cicardian too. I have to avoid ooking straight into it though: the pupil is wide open because rods don’t react strongly to red light so long-wavelength (red) cones get massively overloaded and you see a green spot for a while.
- Comment on lightbulbs 2 weeks ago:
The difference is not as pronounced as in the picture. If you’re used to 4000K as neutral white, yellowish white is 3000K, amber-ish white is 2700K. Only below the temperature of fire (cca 1500K) is when blue fully disappears and you get actual orange or red. And pure yellow is not a possible black body (incandescence) spectrum (that is, it does not correspond to any color temperature) so even though you can set an RGB bulb to that, buy monochromatic yellow LEDs or go under a low-pressure sodium vapor lamp, such lighting feels unnatural.
- Comment on lightbulbs 2 weeks ago:
Warm white is usually 1800 K to 3000 K. What you showed is less Kelvin than the color temperature of fire (1500 K). We don’t have a color temperature word for that, but “red” works. Of course, such light has no blue component (helps control the cicardian cycle) and is pretty much monochromatic with CRI of <5.
- Comment on lightbulbs 2 weeks ago:
“You want cold white or warm white?”
“I need a cold light source, like an LED. I’m afraid the fixture would melt if I put incandescent in there.” (Yes, some E14 fixtures in cheap plastic bathroom mirrors etc. only take up to 10-20 W and have a warning sticker)
“What, higher temperature is colder?” (It’s not their fault though that in nature, white and blue things 🧊 are generally colder than yellow and orange things 🔥)
- Comment on lightbulbs 2 weeks ago:
This scale feels wrong. 4000K is neutral white and should have no hue. Of course, that depends subjectively on what the light around is. 6000K should only be in the center if you’re outside a lot. And the difference between 6000K and 10000K is greatly exaggerated. Not even the visible portion of “infinite” Kelvin is that blue if 6000K is calibrated to white.
- Comment on Well that sucks 2 weeks ago:
Someone got the short end of the stick
