mildchalupa

Life's dangerous.

Roughly 30k cycles is typical. You can certainly design a spring to have infinite life. But it requires reducing average deflection, aka more spring with less deflection per turn.

People think garage door springs are like diffusing a bomb. It's not that bad if you are competent and have the correct equipment.

This is a wild proposition. Were taxis running directly after 9/11?

This is sort of a problem if a society depends on them as a piece of critical infrastructure. If a city owns a bus route and needs to evacuate a population, they can just do it by edict.

No one is considering this edge case and how it should be handled at Uber. A company or community that has pride in what they offer would probably provide rides for free during such an anomaly. This is a drawback on the scalability of technology as we currently implement it.

Large CNC machines that are not exportable under ITAR use GPS and other sensors to detect movement.

Sustainable forrest management requires frequent controlled burns to manage underbrush. Around Michigan this can be a yearly occurrence.

I have a new one. PM had determined that their work load is diminished if a project is killed. So they deliberately recommend that projects be terminated and or do things that would cause the likelihood of termination to increase.

I thought it was determined to be a glove finger knitting apparatus.

1000 pieces is a soft tool Millions are expected out of hard tooling.

Probably a bimodal distribution here in terms of homeschool education.

Though the entire set is probably more useful and practical.

The four wheeling and automotive communities in general have been in disarray lately based on the instant gratification of Facebook groups, and chats such as slack and discord.

Partially because these systems are far simpler for adding audiovisuals however the utility of an organized system with archived knowledge is lost. When Photobucket took down user uploaded content troves of niche information were lost. I do hope that as the cost of saving data reduces over time that data rot is generally reduced. Troves of nontrivial knowledge being destroyed is abhorrent.

Primarily I believe that the difficulty is in the fact that social media is designed to be addictive. Not to be an archive of knowledge.

That's like living in Ohio

Lessened visibility is due completely to rollover protection regulations. Vehicles around the 2010's+ require stronger A,B,C...pillars etc. Automakers complied with the regulations by making pillers both larger and shorter. Shorter members are stronger as there is less bending moment. If you look at where the windows start on newer vehicles they are munch higher. Thus body lines to match this brings up the hood.

This is astoundingly obvious when you park an unmodified 80's-90's vehicle next to something new.

The question to me is what overall reduces mortality rates, improved roll-over and side impact protection or driver visibility?

Personally I think blind spots everywhere suck and would much prefer better visibility.

Here's an example, before WWII brake lines were made out of Monel, a corrosion proof material aside from galvanic. Nickel and copper being expensive and needed elsewhere the lines were made then made from painted steel. After the war steel lines became the standard.

The cost difference is small but it's indicative of a larger issue of disposability. One of the reasons Japanese vehicles started to dominate was that they lasted longer. This is due to better tolerances, more efficient engines, and more robust component design.

The Toyota production method, lean and just-in-time were mostly methods for rationalizing better systems to eliminate waste within production and to minimize inventory. Such methods don't inherently make a better car though they leave more io the table to spend on coatings, quality parts etc.

I would argue that median energy consumed per capita is a useful metric to measure standard of living.

There is a short window of human fertility. Let's assume you are "smart" and wait until you are out of college. You might start at 22 and have a little over 13 years until it's its considered a geriatric pregnancy.

If the economic or social constraints are such that individuals are unwilling to bear children then that is it, you do not get to try again.

Today we straddle those in the fertile window with student debt, high rent or an impossible housing market, thus less chose to have children.

This is not to say that it's a cataclysm, but it's certainly unsustainable from a societal standpoint.

Collective alignment of citizens with Maslow's hierarchy of needs.

Deflation also increases the value of debt, so loans become harder to pay back. For those lucky enough to get a low interest rate loan a high inflation rate eats away at the value of the debt.

If we look at maxima and minima, Infinite deflation would make the value of debt infinitely high. Infinate inflation would drive the value of debt to 0

Link for article without paywall?

Somewhere you need an lox and methane inlet to the currently lit raptors that does not experience transient no fuel events. Such events would create situations of incorrect fuel ratios, and fluid hammer within turbo pumps. Ideally hot staging would be completed without a negative acceleration event, thus the fuel would not slosh .

A simple mitigation method might be to allow for cold stage separation, allow for a period of free fall, use a fairly simple and weak cold gas thruster to accelerate the body forward and thus the fuel to the bottom and then relight the raptors.

Thank you

What is there to remember about tearing down an LS motor it's like Lego. It's also completely poka-yoked so it's idiot proof.

VW

You need an angel investor. AngelList aka wellfound might be a resource.

So pizza hut should have gone upmarket? Pizza de la hutt

1.5-2 Tesla you hit the knee of the BH curve and you saturate the steel.

Electromagnetic solenoid designer here...

Copper and a magnet can certainly interact. Drop a magnet through a copper pipe and the eddy currents will induce a field that's opposed to the magnet causing a damping effect. Maybe something like this is going on where movement of the magnetic field is inducing an opposed magnetic field in the copper, and thus interacting.

Anyhow it will be interesting. if It can generate a field of 1.5-2 Tesla you could have more efficient solenoids and probably motors.

TSMC is Taiwan's single largest strategic national interest. It was started with government investment and it likely remains under a degree of national control. If you replicate the fabs of TSMC in the US, Taiwan will lose its strategic bargening chip. Why have the US defend the island if it offers no additional value?

With no 2nd source supplier the US is in a position to provide strong deterrence against invasion.

In hardware all products are constantly changing.

Examples: A part gets obsoleted by vendor, sustaining engineering has to find a replacement. They conduct a small study to see how the new part works. The budget for conducting lengthy tests to determine if a simple change has any effect at the worst case tolerances is typically not there.

Suppliers quality changes over time. This is known as supplier quality fade. Suppliers will often underbid a part to win a contract. Then once volume ramps up they begin value engineering. Maybe they add more regrind material to an injection mold. Or they progressively begin to make the part slightly thinner on each subsequent batch. Maybe they begin to use a toxic filler material without notice.

An colleague literally had a situation in which a steel casting supplier was putting rocks in the castings.

Companies move injection mold tooling from vendor A to vendor B. The tooling might be the same but the settings are different, so the results are then different.

Without an excellent quality team that has money and time to check everything this will happen.

If you are competing in a marketplace with low margins there will never be enough money to check everything.

We live in a time of historically unparalleled peace due to unthinkably dangerous weapons. An unlikely Nash equilibrium.