Imagine doing a situp every three minutes, but you hold it at halfway for three minutes then relax, now do that for 12 hours straight with no break, and each sit up gets closer together, and each hold time lasts longer, and no matter how much you want to stop your body won't stop.

Please don’t forget that loan sharks are outfits that advertise on tv (in the U.K. amigo loans or similar) not just shady people / ‘the mob’. Payday loan companies are loan sharks.

APR’s can be hundreds or thousands of % of the principal meaning if you needed 200 to get you through three weeks you already owe triple + When it comes due. If you didn’t have 200 to start with you definitely don’t have the repayment.

They prey on the vulnerable. They’re disgusting.

my kona ev with 62k km on the clock in less than two years would disagree with you but i can see your point

Competitive team roping is way more fun.

A loan shark gives desperate people that need cash big loans at absurd interest rates.

Long story short it is a trap... you already are left without money, a loan shark preys on that by fixing your debt issue short term.. then kicks you deeper in debt due to absurd interest rates... so to get rid of the loan sharks loan..who will press and harass you to pay it off.. many opt to lend money from other.. possibly loan sharks too. Or friends.

It is a spiral of debt.

They do have electric bikes with standard batteries. They do have battery swap locations. If they aren’t the same brand then they must have a standard type they use. Like a propane gas tank swap place. I’m sure it would be hard right now to standardize car batteries because the technology is changing relatively quickly. The biggest issue is not having “right to fix” laws in the US. Companies are allowed to continue to make money off of cars, tractors and other products after you buy and own them. They keep a monopoly and if anything this slow technology advancements with proprietary rights. When car companies first started making cars there biggest advantage was aftermarket opportunities. Now if you buy a Tesla or such you can’t modify or repair without permission from them. Monopoly’s delay progress. We might be flying electric cars but now without oil monopoly’s!!

They charge extreme (illegally high) interest. And they’ll resort to physical violence if you can’t pay up.

Chargers are also much, much more mechanically simple than some sort of machine that would swap out your 1000lb battery for you. Electrify America already has trouble keeping their chargers working. Imagine how bad it would be if it was machines with 500 moving parts instead.

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I have no doubt that would work but I would be curious as to the longevity of that. Also if it was a high mileage battery or some fluke internal failure, and what percentage of the cells they actually replaced. I'll have to try to find the story sometime.

Only non-EV drivers think that swapping is a good or necessary option. The second you’ve lived with an EV for a month or so, you realize how totally inconvenient and unnecessary it would be.

>by the majority of a given demographic

This is a very important distinction. Common sense is only common to those with common experience.

all of the EVs I know of are batteries made of batteries. The individual modules are multiple cells, those are then stacked together.

It feels like a vice grip around your entire middle section pinching your muscles extremely hard, but also with a strong burning sensation to go with it. Or that was what it felt like to me.

I would need to visit a special place to recharge my car and a person or myself would have to manually remove 1000lbs of battery and replace it with a new one? That sounds like a much, much worse option than just taking 3 seconds to plug it into the charger in my garage. I don’t see how that’s better for anyone, even if you can’t charge at home and need to visit DC fast chargers all the time.

Could I do it both ways? Allow swapping and charging at home? Sure, but is that worth the immense design and engineering trade offs, when home charging + DC fast chargers work fine in almost all cases?

Relying on swapping would also be a big profit center for car companies because they could charge big recurring swap subscriptions. They don’t do it because it’s a bad idea, not just because of money.

I remember seeing a case where Tesla was charging wild money to replace a battery and the dude paid another company to look it over. While still expensive, it was a lot cheaper for the guy to go battery by battery and find the bad batch then replace it and car was good again.

Yep, I did. And perhaps you missed the first post of this thread. If a vehicle is totaled, then the battery lasted the lifetime of the vehicle. I understand all the simplistic points you made, but the batteries do no go through there usable life cycle in the lifetime of the vehicle. Not a single person I know has had to replace a battery in their vehicle, no have we. You addressed nothing, and are simply going off on a tangent to start an argument.

Once you get over atomic numbers of 100 the elements are unstable and rapidly decay into lighter element, it isn't likely that there will be any new element on a new planet, there will be unusual combinations of elements to create new metals etc. form from existing elements which are rare on Earth, but that is about it.

I think swappable car batteries work fine in some areas and circumstances, but I don’t think that it will ever take off or be necessary in the US. I own an EV and I do 99.9% of my charging at home. Swapping is less convenient than that, I don’t want to pay a permanent subscription on top of the price of the car. Fast chargers along highways are also far less labor intensive and much more mechanically simple than any sort of human operated or automatic battery swapper.

As soon as you own an EV, you realize how bad and unnecessary of an idea battery swapping seems.

The question was specifically about elements of the periodic table. But you are completely right that the concept of unobtainium comes from the research into alloys. Things like magnesium aluminium creating light but very strong metals, then titanium alloys with even better properties and so on. A lot of this research have faded from the spotlight after plastics took over most of the uses, for example in fiberglass. Currently things like kevlar and carbon fiber have taken over the spotlight from metal alloys so things like unobtainium is hard to imagine for most people.

EV batteries are genuinely terrifying, even experienced industrial electricians get nervous working on them. Not only do you have the insane power potential that could easily kill, but if something does go wrong you have a fire that burns incredibly hot for days that's near impossible to put out.

This is not a government, issue. Yes they're are problems with capitalism but you need to stop blaming all your issues on it. This has nothing to do with greedy corporations, this is actually a real issue with safety.

I think to the question it is unrelevant how physical calculators do it since physical calculators are not used much anymore. We are interested how to calculate square root i.e. different algorithms (=methods) used to calculate square root. It’s unrelevant what specific method calculators use.

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At no point in flexing your joints are you putting any significant stress on your femur or other straight-bone in the limb.

The tendons and ligaments are providing support in other directions/axes that your bone isn't providing. If you twist an ankle, your tibia or fibula isn't bearing the major stress; you could twist someone's ankle 360 degrees around, completely destroying the entire tendon structure, and the tibia/fibula will be structurally intact. Likewise, if someone hits you in the shin with a 2x4, your ACL or Achilles isn't bearing the major stress; completely smash the tibia and fibula, and the ACL and Achilles, while now useless, won't tear.

In your back, the discs and vertebra are basically in-line. They are sharing the load between the two whenever you're bending the spine. So that force gets distributed across/applied to both, which means either can break from the same load.

There's some confusion here. Batteries by definition is a collective noun and are comprised of cells. EVs are comprised of many cells controlled by computer processors to manage usage heat and life cycle. Generally you don't want a cell to get about 80% or. Below 30% capacity, nor do you want to wear out a handful of cells charging and recharging constantly becuase they're closer to the inlet/outlet.