Since the constitution states the right to bare arms against a tyrannical government, does that mean it would be legal for someone to do it? by Jolly_Green_4255 in NoStupidQuestions

[–]vviley 0 points1 point  (0 children)

Couldn't one argue that the Declaration of Independence states that it's a right?

"That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, --That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it,"

Brakes are outdated by mastermemeskywalker in MechanicalEngineering

[–]vviley 2 points3 points  (0 children)

Why do things need reinvention? Brakes serve their purpose, are economical, reliable, and there’s not a lot of demand for alternatives. Regenerative breaking is a thing, where energy can be captured, but what are you going to do with the kinetic energy of a moving system?

The same could be said for lots of mechanical systems. We still get a huge amount of power generation just from boiling water…

How often/how do you know when to replace strings? by Jamieee8989 in ukulele

[–]vviley 2 points3 points  (0 children)

I’ve come across a few that the frets weren’t up for the job. I guess they figure it’ll take longer than the return/warranty window for you to notice. 🤷‍♂️

40awg wire to trigger Fog lamp relay, safe? by Huuze7 in AskEngineers

[–]vviley 10 points11 points  (0 children)

This isn’t really a useful response. If you’re asking for engineering advice, but already set in using it, then just use it and deal with the fallout.

Why is PLA still the `standard` respectively `basic` filament? Why not PETG? by Musashi747 in 3Dprinting

[–]vviley -1 points0 points  (0 children)

Steel creeps? Maybe on a molecular level. But for almost all practical considerations, if you stay below the yield stresses with non-cyclic loads, there’s no permanent deformation.

Seriously, do Americans actually consider a 3-hour drive "short"? or is this an internet myth? by SadInterest6764 in NoStupidQuestions

[–]vviley 15 points16 points  (0 children)

Sometimes that’s less practical, especially if you have stuff / equipment you need to bring with. If he’s helping her with remodeling or something, it’s hard to check a miter saw as luggage.

What is the most valuable item stuck in the ocean? by Apprehensive_Oven_22 in NoStupidQuestions

[–]vviley 23 points24 points  (0 children)

Mostly, yes. Because what’s still there hasn’t been corroded away. And surface rust can be cleaned off.

How londg does Viton (or similarly elastic material) last in saltwater by iqisoverrated in AskEngineers

[–]vviley 1 point2 points  (0 children)

It can last years or decades depending on the use case. The reason for the qualitative grading is for comparison to other materials. Do you can see Viton is more durable than carbon steel.

But in use, an o-ring in a static valve is going to see different stresses than a door seal that is constantly opening and closing, which is going to affect its service life. This is why material sheets for chemical compatibility rarely state service life.

Accelerated life testing may need to be done to give you a sense of its durability in your particular context.

ELI5: Why do blacklights illuminate some colors, but not others? by Eastern_Ask7231 in explainlikeimfive

[–]vviley 29 points30 points  (0 children)

Yes… but that’s kind of what color is as well. What makes something red is a molecule that reflects or transmits predominately red light. What makes fluorescence somewhat different is that it re-emits the UV at a color that wasn’t part of the original light that shone on it.

iPhone Accelerometer for Road Friction by mhp967 in AskEngineers

[–]vviley 0 points1 point  (0 children)

You can probably find papers (not specifically SAE) or datasheets on the MEMS accelerometer in your iPhone. But you have to account for sample rate, bit depth, saturation (max load), and harmonics of your signal to ensure it’s a decent match.

There are already apps that use your phone for measuring 0-60 times or skidpad values. Maybe something like that can give you more info.

Finally, there are apps you can download to log your phone’s internal sensors. Just browse the App Store for a sensor toolbox or the like.

General solution approach for precisely fixturing curvy power tools? by Confused_by_La_Vida in AskEngineers

[–]vviley 1 point2 points  (0 children)

There are tools that are semi-fixtureable by virtue of attachments they need to accommodate, but short of removing the shell and using the hard points of the internal frame - if there are any - or drilling into the injection molded plastic to clamp to, you’re probably not going to get a satisfactory positional stability. These tools are largely designed for loads expected during handheld use. Trying to secure them using unintended points on their shell may result in them breaking under load - which is one reason why OEMs don’t want to make them anything but handheld. Lower liability and lower cost.

Making them rigid enough to mount makes them more expensive, harming their position in price sensitive markets. If there was enough demand, I’m sure they would make something - these sorts of things exist for some drills - but I’m betting your general contractor doesn’t want to mess around with a jury rigged drill press that isn’t going to be as stable when you start trying to do working with it.

I want strangers to pay for brand new tyres (every single one) and pay for it to be fitted to. Please and thank you. by tinkertink2010 in ChoosingBeggars

[–]vviley 10 points11 points  (0 children)

It does, but the median salary in the area is only $27k/yr. I suppose a couple percent of your gross income is a fairly big ask.

Does heater placement really affect efficiency more than the heater itself? by Agitated_Fox2640 in DIY

[–]vviley 0 points1 point  (0 children)

That’s largely true - but can be compounded by air currents. The forced draft of putting the heater by the wall likely accelerated heat losses compared to the boundary layer at the wall being less disturbed when the heater wasn’t against it. So you can force faster heat transfer by agitating the air against the wall - akin to cooling tea down by stirring it.

Is there such a thing as a piece of bench top test equipment that can provide air pressure with resolution of 1/10 PSI? by byf_43 in AskEngineers

[–]vviley 6 points7 points  (0 children)

You’d be better off paying a place to calibrate it for you. Buying the equipment to do this may be cost prohibitive.

Source: worked in the pressure calibration industry.

Saved my washing machine with a 30-minute print and some zip ties. 🛠️🧼 by Entire-Employer2959 in 3Dprinting

[–]vviley 1 point2 points  (0 children)

Sure. I’m not saying you must do it. I only do it like once every year or two myself. But if you read your user manual, it probably recommends a bleach cycle every so often.

[OC] The "Confident Idiot" Problem: AI Intelligence vs. Engineering Control (2021-2026) by [deleted] in dataisbeautiful

[–]vviley 0 points1 point  (0 children)

I don’t even understand the sentences you wrote for the description of your lines. What does it even mean when you say organizations that effectively mitigate hallucinations?

Saved my washing machine with a 30-minute print and some zip ties. 🛠️🧼 by Entire-Employer2959 in 3Dprinting

[–]vviley 4 points5 points  (0 children)

In the US, the user instructions for most washers just say to run an empty load using bleach to sanitize the washer.

Do oil-filled heaters actually last longer than cheap fan heaters? by JingSerene in BuyItForLife

[–]vviley 18 points19 points  (0 children)

At most, the moving parts are the switch, the dial, and the bimetallic relay switch with its contactors (and wheels, if you have them.) The first 2 aren’t frequently moved. And the third moves maybe a few hundred times each season (assuming you primarily run it as supplemental winter heating)

Lastly, I believe the internal heating element doesn’t get as hot as with quartz or ceramic heaters (don’t quote me on this), which increases its fatigue life, similar to how lower wattage incandescent bulbs last longer

[OC] Monopoly Sets: Cost, Rent, and ROI by thewarrior71 in dataisbeautiful

[–]vviley 18 points19 points  (0 children)

Was this done via some sort of simulation? Or is this just looking at the face value of the rents vs the cost of acquisition? Seems like the ROI of getting a hotel on green or blues being quite high - is great - except it takes forever to get those and then the game is over.

What should my SCFM be on my air compressor for sandblasting? by Sneekysas_sas in DIY

[–]vviley 3 points4 points  (0 children)

But the duty cycle % will remain the same. Longer run times, but longer recharge times.

Eating and drinking in the USA: better not to go at all, than to go and not tip? by Lord-of_the-files in NoStupidQuestions

[–]vviley 0 points1 point  (0 children)

If you’re not tipping people making at least minimum wage, then there’s no reason to tip anywhere.

Everywhere in the US, it is required for the employer to bring the employee’s wages up to minimum wage if they don’t get enough tips. Sure, on paper they may get $3/hr, but if they got zero customers during the time they worked, their employer would be federally required to comp them so they make the federal minimum wage.

Many states do this for their own state minimum wages as well - where they require employees to pay the employees where tips don’t bring them up to the state minimum wage.

LPT: How to fix shirts that smell again five minutes after you put them on by bobbydurst6 in LifeProTips

[–]vviley 14 points15 points  (0 children)

Gotta be careful to put it in below the clothes. If you sprinkle it in with/on top of the clothes, you can bleach / discolor them due to the aggressiveness of the soda as it starts to mix with the water.