p1mrx

39 ms·

811.
by p1mrx 4y ago
> I don't think you'll like [some dead guy's] reason why. The first person to ask a question doesn't have a monopoly on the answer.
812.
by p1mrx 4y ago
I don't see how any of that follows. If the ground is accelerating upwards, then making an object levitate would require stopping that acceleration. Even with scifi magic, that problem sounds more difficult than "blocking gravity
813.
by p1mrx 4y ago
Would it be correct to say that you feel gravity/weight because the ground is accelerating upwards in your local reference frame, and your body's inertia resists that acceleration?
814.
by p1mrx 4y ago
Interesting, so they're using PWM to hold the headlights at constant brightness when the alternator runs. Wiring a capacitor in parallel with the headlights should fix that.
815.
by p1mrx 4y ago
Then that's not PWM; they cheaped out on the power supply by not including capacitors to smooth out the 60 Hz AC waveform.
816.
by p1mrx 4y ago
> use low-frequency PWM to regulate down high system voltages to 12V That can't be right. Cars are primarily 12VDC.
817.
by p1mrx 4y ago
Well you don't have to wipe out the species, just keep your distance.
818.
by p1mrx 4y ago
Why diesel? If you need natural gas to run the furnace, it might as well run the generator too.
819.
by p1mrx 4y ago
Last year, I made https://github.com/pmarks-net/exhale to automatically ventilate my house when CO2 levels are high, using a smart switch connected to the bathroom vent.
820.
by p1mrx 4y ago
The real 6th platonic solid is the 24-cell, which only exists in 4 dimensions: https://www.youtube.com/watch?v=oJ7uOj2LRso If it could actually exist in 3D, it would fit somewhere between the https://en.wikipedia
821.
by p1mrx 4y ago
If you have a sink near the shower, run it full blast on hot to flush the cold water from the pipe. This mainly saves time, but it also saves water if your shower mixer valve doesn't go to 100% hot. (It's generally good to keep t
822.
by p1mrx 4y ago
Have you actually looked for a fast SSD? Your laptop's SATA/PCIe interface is probably the bottleneck at this point.
823.
by p1mrx 4y ago
AI scales better than social, because it works if you have no friends.
824.
by p1mrx 4y ago
On the other hand, it seems most of the low-hanging fruit has been picked over the last couple decades. What is left for a random small business with software talent to do?
825.
by p1mrx 4y ago
You're talking about overclocking the CPU. ECC is more relevant when overclocking the RAM itself, which also affects gaming performance.
826.
by p1mrx 4y ago
Sure, you can buy a 1:76 scale electric car for around $80.
827.
by p1mrx 4y ago
I don't disagree that there are more-elegant proposed reactors with more-inherent safety, but NuScale has an incremental/conservative design with 20 years of effort behind it. We need to fight climate change immediately, and prio
828.
by p1mrx 4y ago
> Passive afterglow heat removal is the thing that lets reactors of any fuel form be safer than today's typical reactors, which generally require backup power to run the cooling systems. NuScale does not require backup power. They s
829.
by p1mrx 4y ago
Here's a presentation on their approach to safety: https://www.youtube.com/watch?v=JhrxFCtCPUo&t=2360s They estimate that the risk of core damage is 3-5 orders of magnitude lower than traditional nuclear plants.
830.
by p1mrx 4y ago
NuScale's main safety feature is an enormous pool of water, so the reactors can cool down without human intervention. That's more physics than engineering.
831.
by p1mrx 4y ago
It is possible to make renewable methanol, convert it into dimethyl ether, and then store/use it in a manner similar to propane: https://www.aboutdme.org/aboutdme/files/cclibraryfiles/filen... I could im
832.
by p1mrx 4y ago
Here's another old bug. When you provide an IPv6 addresses, it reads the first 4 bytes as an IPv4 address. I tried reporting this on the forums like a decade ago: https://www.wolframalpha.com/input?i=101%3A101%3A%3Af00
833.
by p1mrx 4y ago
I think the HIV virus can do that, but there are a few side effects.
834.
by p1mrx 4y ago
It seems that mRNA vaccines are becoming like antivirus software updates: inject the whole "database" and your body scans for currently-known threats. Does the immune system have a capacity limit? I wonder if the technology will
835.
by p1mrx 4y ago
Would it really be so bad for Europe to depend on Australia and Canada for fuel? In theory, a single cargo ship delivery could power the entire continent for a year.
836.
by p1mrx 4y ago
If you're not observing the outside world, then the reference frames "at rest" and "moving at a constant speed" are indistinguishable. Climbing a staircase requires the same amount of work as climbing a down-escalat
837.
by p1mrx 4y ago
Here's an example of a Physics question that it gets wrong: > Me: An escalator is moving down at a constant speed. I am walking up the escalator at the same speed, such that my height above the ground is constant. Am I getting a w
838.
by p1mrx 4y ago
Probably because "pirate" has many neutral/positive connotations, including swordfighting and sharing movies.
839.
by p1mrx 4y ago
> It would have to be large enough to take in a couple packages. Also heavy enough to not blow away in the wind, but light enough for inexpensive delivery. Perhaps with IKEA-like assembly, and a compartment in the bottom for gravel or d
840.
by p1mrx 4y ago
"Package thief" is similarly precise.

More ›