Making the batteries smaller individual containers would absolutely add a lot of weight which is already a massive problem for EVs. One large battery pack acts as a structural component so breaking it up not only means adding additional weight for the additional casings, it also means eliminating battery capacity and also adding brackets to structurally attach them to each other (which is both heavier and weaker than one large casing).

This is also an odd thing to nitpick. Battery cells themselves are modular and different manufacturers are using like cells depending on the origin of those lithium cells. This is not unlike battery packs in things like power tools, those battery packs are just containers around cells like this: https://www.samsungsdi.com/lithium-ion-battery/power-devices/power-tool.html

These 3.6 or 3.7 volt cells are more or less the same across all brands (Dewalt, Milwaukee, Ryobi, etc) and if you wanted to you could open those batteries and replace cells. Similarly, people can and do open up EV battery packs to replace battery cells. So long as you k ow what you are doing when you rewire them and don't kill yourself touching a large capacitor they are repairable and replaceable components.

Are you just as upset that you can't for example, swap brake pads between cars? Or intake manifolds? Or that there are a million variations of a spark plug?

I think it's important that you understand that deleting something never truly deletes it.

Whenever some data is stored on a drive, it is stored in a specific location, along with a digital post-it note on it that says "This space is occupied, I'm here."

When you delete something (fully delete, removed from trash, completely gone as far as you can tell) it is not deleted at all. All that happens is that post-it note is switched from occupied to unoccupied.

Then the computer thinks nothing is there and it's allowed to overwrite what is/was there.

It's not actually gone until it has been overwritten, and up until that point, it can be recovered by forensic software.

Google says that deleted emails may take up to 60 days to be completely removed from their servers.

It's like you didn't even read what I said because it addresses exactly everything in this reply

> Is the expectation that after 15-20 years we just junk the rest of the car?

Not necessarily; but a traditional internal combustion automobile is going to require replacement of some of its critical systems by this point in order to be drivable as well, and this is generally what's meant by the "service life" of a product. Of course you can extend the usable life of the vehicle by replacing worn out parts, but -- even with regular maintenance -- some of those components just aren't engineered to last that long (they can be, but you're usually sacrificing performance or efficiency for durability).

What OP wanted:

https://www.youtube.com/watch?v=0k1tbf8muMc

What Tesla gives you:

https://electrek.co/2020/11/03/tesla-tsla-new-battery-cells-panasonic-faster-charging-capacity/

Yep, that's it. Not only are you aiming at a moving bobbing target (whether it's the head or horns or both back legs) you are on a galloping or cantering horse with a mind and cadence of its own. Maybe he gets distracted and maybe on uneven ground.

Many moving parts!

Centrifugal forces help to keep an open loop as it applies a tangential and normal force. Also helps aerodynamics and allows the loop to travel further. You can replicate this yourself by shooting a rubber band. First shoot it normal and you’ll see it kinda fizzle out. Now shoot the rubber band again but offset your index finger so one side is tight and the other side loose. You’ll notice the rubber band flies significantly further by inducing this spinning motion as it flies.

You can use the average method to compute a square root, but the question was how a calculator computes it. That is definitely done by using a taylor series.

Not quite - I'm assuming that soft tissue will bend/flex before the bone breaks - in fact, it must to allow what spinal flex we have as it is.

If you pull on your hamstring too hard due to flexing joints around it too much, the hamstring tears rather than your femur breaking or similar. This is different to how the spine and its connective tissue/muscles works (in that it seems it's the bones that come apart, rather than anything softer), and it's the explanation of that difference that I'm looking for.

Well described. I think people don't get how the timing has to come together, and much of it is out of your control? So the best thing involved - and about the only thing you have total control over - is to have your lasso at the ready for when that perfect moment comes.

You're assuming that the soft, flexy tissue will break before the bone will. But the tissue, being soft and flexy, specifically won't break, whereas the bone, being rigid, cannot flex at all. Both materials being subjected to the same load, it's not a given that the tissue will break before the bone will.

Again, you're still wrong. Yes, they get repurposed after vehicle life ends, but that has nothing to do with this discussion. Batteries are not dying before vehicles rust out and head to the dump. You can downvote all you want, but it doesn't make you right

To the best of our knowledge, uranium has the highest atomic number of naturally occurring elements (Z=92). Anything above that (93 - 118) was synthesised in a particle accelerator. There's no reason why we can't continue to do this with higher and higher atomic numbers but most of the nuclei are so unstable that they only exist for a fraction of a second before disintegrating, so they have no practical uses. There is a hypothesised "island of stability" where some semi-stable nuclei could exist with longer half-lives but again it's unlikely that anything will exist long enough to be useful.

So we MIGHT find some new elements out in space but they'd almost certainly be synthesised by an alien race and be extremely short-lived.

It's one of the methods that converge really quickly, you double the number of correct digits with each step (that statement is independent of the base, and applies once you start getting some correct digits).

Great answer, thanks.

You don't need a table of squares. This method works, even if you don't start with a square. You just need to start as close as possible to the square root.

Even some crude approximation, like "closest power of 10", is enough for the initial value.

A key point I've not heard much about is the range/power/weight trade off. There's a lot of dead weight sitting around on driveways for extended periods that isn't needed because you don't always need 300 miles of range (think average journey distances) or you don't need to go from 0-60 in 4 seconds. Wouldn't 'modular' be helpful in those situations?

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Common sense in simple terms is really simple to explain.

It’s the inherent knowledge in most functioning peoples’ brains that helps a person not die or get injured, basically.

It’s things like not walking in a highway, or jumping off a skyscraper just because.

There’s a difference between being suicidal and not having common sense.

It’s referred to as common sense because there’s usually a cognitive ability in our brain to distinguish between something that may cause us harm, and something that may not.

It’s common because most people have it, therefore making it, by definition, common.

To add on to this, yes some cells will die before others but in general when the battery pack is nearing the end of its life none of the cells are going to be very good anymore and you'd probably end up replacing all of them anyway. Additionally combining brand new cells with old worn cells is probably not a great idea for balancing.

You might have something there! Polite goes a long way, People.

Most of the breakthroughs we have toward unobtanium like properties has arisen from research into alloys (combining elements to make unique metals), or ordinary elements in completely radical environments. Examples are with batteries and ability to hold more charge and charge quicker (combining known elements in new ways) and superconductors (known elements and compounds at extremely cold temperatures).

You don't have to create new atomic elements to make significant breakthroughs in materials. You can do a lot by working with what is already known in new and imaginative ways.

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Domestic intelligence obtains evidence legally to use in court although may use illegal means at times to know what evidence to collect. It's much closer to a police force. Foreign intelligence only cares about not getting caught; everything it does is illegal. Comingling domestic and foreign intellifence could produce complications because the illegal foreign activity could be exposed in court.

There's two main branches of domestic intelligence, pure domestic intelligence, such as against domestic terrorist groups, and counter-espionage, which fights foreign intelligence agencies. Those two skillsets by themselves are very different from foreign intelligence. It's like asking why a quarterback doesn't play safety.

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