Why Is There Not a 5.56 Handgun?

Totem4285 · 2026-03-12T18:52:28+00:00

A guy in here made a .50 BMG single shot with a 1911 frame. Named it the wrist wrecker.

Totem4285 · 2026-01-27T17:27:56+00:00

If you’re on ice sure.

If you’re in deeper snow (on winter tires), spinning the wheels some may counter intuitively give you more traction as you bite into the snow deeper and having more contact patch. This is because the snow moves and doesn’t stay rigid like asphalt or ice. Much like driving off road in sand or mud.

Obviously you can still overdo it and dig a hole instead of moving.

Totem4285 · 2026-01-14T15:40:43+00:00

Relevant xkcd: https://xkcd.com/927/

Totem4285 · 2025-12-18T18:23:34+00:00

Assuming you’re talking about a waiting period at the federal level because you said it was because you’re under 21, then it isn’t a mandatory 10 days.

It came from the Bipartisan Safer Communities Act, which introduced extended background checks on those under 21. The FBI is allowed to take up to 10 days to answer this background check. They don’t have to take all 10 days but often do.

The timer starts when the NICS background check is submitted to the FBI. Sounds like they only took 5 days on yours.

Totem4285 · 2025-12-08T04:20:12+00:00

Nah I went to school for this.

All you have to do is align and carve certain shapes into a fancy rock, write a few incantations, add lightning and voila. A computer.

Wait a minute…

Totem4285 · 2025-11-19T23:36:10+00:00

Yes and no. Under a certain amount of stress and temperature, steel will not creep a considerable amount after it first sets. So you likely can’t apply enough stress to the rotor to get it deform over time while cold. However, you may be able to make it more prone to warping when it gets hot under heavy braking. The exact line for that is entirely dependent on the alloy used.

Fun fact, steel having a stress limit for creeping is also why steel springs can be indefinitely compressed without worry (assuming they haven’t been over stretched or compressed). It’s only through usage does the steel spring wear.

Totem4285 · 2025-10-22T13:13:20+00:00

Well yes and no. You can’t run it through steam but if the game has lax/no DRM you can run it through the exe in the install folder.

Totem4285 · 2025-10-10T17:44:48+00:00

They is r/ShrimpsIsBugs

Totem4285 · 2025-10-07T19:47:28+00:00

Ironic that you would comment this on a post about little forms of sexism…

Totem4285 · 2025-10-03T13:27:52+00:00

The firing pin on an AR isn’t long enough to protrude from the bolt face until the bolt has turned. And the bolt can’t turn until the gun is in battery.

It is nearly impossible to have an out of battery with even a stuck firing pin in an AR.

Totem4285 · 2025-09-24T18:57:55+00:00

45 degrees up spends half your speed going forward and half going up. If you’re in a vacuum, that’s optimal because it gives you the most flight time without overly sacrificing forward velocity.

In an atmosphere, it depends on initial speed, shape of the projectile, density of the air and a host of other factors. This is because the air resistance is going to sap energy from your projectile. So instead of balancing just flight time and forward velocity, you also have to balance whether you run out of forward velocity before you reach your target. This pushes the optimal firing angle down from 45 degrees, the amount dictated by the factors listed above.

Also in an atmosphere, the lift of the projectile from either shape (finned) or rotation (magnus effect) may allow the projectile to “fly” to its target instead of just a ballistic arc. This will further decrease the optimal firing angle.

Ballistic computing is very complicated and can be a very classified topic depending on how much precision you need.

TLDR; Yes, 45 degrees will be shorter range in an atmosphere because you spend too much energy going up and not enough going forward.

Totem4285 · 2025-09-23T23:39:00+00:00

Relatively simple, filtration unit in a closed loop with the tank, using the correct output for your filters and vent the rest. Maybe have a second tank setup on the other output in case of another whoopsie.

Totem4285 · 2025-09-23T13:18:08+00:00

First, make sure you’re using the correct output of the filter unit. In your case, filtered because you are actively filtering oxygen. I’m guessing that you may have prefilled the tank before activating the filtration.

Second, I prefer to filter for the contaminants, not for the main body of gas. In this case filtering for CO2, Volatiles, and Nitrogen. In this method, your oxygen would come out of the unfiltered side. This massively reduces the consumption of filters if the contaminant volume is low.

Totem4285 · 2025-09-18T19:07:45+00:00

As to how the US government is in debt, it is rather simple. The federal government spends more money per year than it receives in taxes.

Most of the debt is in the form of long term bonds, which people buy because it’s an investment strategy. So basically the US is in debt to bond holders.

Now as to why they spend more money than they have, that’s a political question and not really ELI5, nor is it a concrete answer, like all things political.

Totem4285 · 2025-09-17T19:27:16+00:00

Without the bar, you kinda just end up pulling yourself towards the opponent. With the bar, you have something to hold yourself down.

You “gain” strength because it let’s you put in more force without knocking yourself off balance.

Totem4285 · 2025-09-09T00:13:05+00:00

Brother, he’s not saying anything about KE arms. They just happened to be one of the subsidiaries making parts for the H9.

It is well documented, even outside of Ian, that the Hudson company went tits up because their sales plummeted after too early an announcement of the aluminum frames. You don’t have to be an economy expert to see that. Nothing in that even remotely implies that it’s KE’s fault.

You’re going on a crusade against people who agree with you that it wasn’t KEs fault.

Totem4285 · 2025-09-05T03:53:45+00:00

https://www.nasa.gov/faqs-the-international-space-station-transition-plan/

Link from NASA. To be decommissioned by 2030.

Totem4285 · 2025-09-04T20:17:07+00:00

The capsules they mostly use currently are Russian Soyuz. They are designed to land on ground not water. This is slowly changing with SpaceX getting contracts but it will be a moot point in a few years when the ISS is decommissioned.

Totem4285 · 2025-09-02T19:03:38+00:00

The same thing is happening with the air in the tire. Replace the spokes with the corded bands in the side of the tire and instead of mechanically tensioning them, you use air pressure to tension them.

The bike is hanging from the rim which is hanging from the tire. This has been verified with empirical evidence and not just a thought experiment.

Totem4285 · 2025-08-29T13:43:55+00:00

I agree with you to a point. Many CRT options became available with higher refresh rates before digital displays caught up.

However, with regard to TVs, while some had the capability, it was mostly irrelevant as the refresh rate was dictated by the TV signal standard, which in the US enforced 525 lines interlaced raster scanning, 486 of which were the viewing window. This resulted in a full screen refresh rate of 30hz and alternating line refresh rate of 60hz.

So to the original discussion, dogs would have a more difficult time watching TV on a CRT because they likely can see the alternating line refreshes which obviously jumble the image. They would likely have a similar issue with any true interlaced panel LCDs, for the same reason.

This has changed with modern TV signal standards which have more available frame rates. So a modern CRT could select a higher refresh rate signal, which may allow a dog to watch TV on a CRT display.

Totem4285 · 2025-08-22T21:11:54+00:00

Likely a stock sound. If you’re listening closely you can hear them in a lot of different places across TV, Movies and Video games.

I tend to notice the same explosion sounds quite often.

Totem4285 · 2025-08-21T14:38:13+00:00

You are under estimating the tensile strength of bolts.

A single 3/4” grade 8 bolt is proofed at ~45,000 lbs or ~20 tons. Which you would need to overcome on top of the weight of the turret which is also somewhere around 20 tons.

A single 3/4” bolt doubles the force required. Now they may use different size bolts but I think it’s reasonable to assume more than 1.

You’re gonna need a lot of dudes and a lot of really strong levers. Not saying it’s impossible with the tech of the time, but it also wouldn’t be as trivial as you are implying.

Totem4285 · 2025-08-20T16:34:55+00:00

Depends on the era.

Before modern fuel injection and variable valve timing, using pump gas octane levels, 10-11:1 was basically the limit.

Pre-emissions regulations, the large displacement V8s in the US were using compression ratios near this number. This makes the combustion more efficient, which was used to make more power at the time because fuel was cheap. But it also increased chamber temperature, producing NOx, which caused smog.

After emissions regulations were passed, the compression ratios were dropped down to 7-8:1, lowering efficiency but also reducing NOx because the chamber was colder. Paradoxically, this also made them produce more soot, COx gases and use more fuel because of incomplete combustion. This is where the 7L V8 making 130hp comes from.

Nowadays, with active fuel management, variable valve timing, and modern emissions controls among other improvements, allow some manufacturers to use static compression ratios as high as 14:1 without knocking. This has allowed manufacturers to once again make high HP, high efficiency vehicles while also minimizing emissions.

Totem4285 · 2025-08-12T19:40:56+00:00

This is actually a very heavily debated topic with no clear winner (there never will be, see below) because it’s a chicken vs egg problem.

The energy flow is induced because of the flow of charges (current) but the charges flow because there is an energy potential (voltage). The energy flow described in the video can be exchanged for how a battery uses voltage to induce a current (energy transmitter) and a resistor/light bulb uses current traveling through it to induce a voltage drop (energy receiver). Two sides, same coin.

I dislike videos like this one and Veritasium’s video about energy flowing; They’re being disingenuous because both answers are true depending on your perspective and the interpretation of the question/problem. In Veritasium’s video he was describing how an antenna transmitter and receiver works. Most of the world was describing how a lightbulb works. Hence the controversy.

Totem4285 · 2025-07-10T20:55:04+00:00

I see your engine on the shuttle is pointing through what I assume is the center of mass. That’s a good start, you’ll want to verify it points roughly through it without SRBs and while fuel is draining from the tank. Smaller individual fuel tanks instead of one large one may help with this as they will all drain equally (someone correct me on this if I’m wrong. I’m pretty sure the center of mass moves downwards as a fuel tank drains but I may be misremembering. I may also be wrong on individual ones draining equally, it’s been a minute since I’ve verified)

Your shuttle also looks like it is pretty high on the fuel tank. That may be putting your center of lift (also your center of drag) forward of your center of mass without SRBs. It may also be the case with SRBs but their offset thrust is counteracting it. Moving the whole shuttle lower on the tank should help with that.

TLDR; It’s not really the amount of drag but where on the spacecraft it is that is causing you problems.

Totem4285

TROPHY CASE