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Internal combustion engines are much less efficient than electric motors and batteries. There is loss in transmission lines and electrical storage is a real problem compared to hydro or carbon based fuels.
If you have an efficient turbine generating power at peak performance I would think that the overall efficiency is a win for electric cars.
Now, if you consider the entire life cycle of all the components and the production, I don't know. Batteries are expensive to produce, but then again, so are engine motors and transmissions.
Would be great to see the math on that. Not sure where to even get the data to start, though.
yes Musk is a weasel and in general a blow hard. As for him delivering. I am not 100% sure on that. But he does recruit and reward good talent and he does a good job at being visionary.
Bitcoin - yes we have always known that.
Solar - Solar cells like any product weren't that good when first produced. They were expensive and the return was less than 8% or so. Now though. The manufacturing process has been improved a great deal. And also the efficiency has improved drastically. nearly 50% in some cases. So I am not sure that can be much of an argument.
But the comments about the rare earth metals and other important elements for producing everything we use. That is huge. Seriously huge. We are seeing this already in computer screens and batteries for cell phones. It is harder and harder to find the minerals needed to produce what people want to consume. And are we going to stop people from consuming. No. Just look at the "gas shortage" this week. People will over consume if they don't think there is enough. Just because of me first mentality. People are stupid.
People are stupid and I think Musk knows this and is using it against them.
To err is human to really elephant it up you need a computer
But the comments about the rare earth metals and other important elements for producing everything we use. That is huge. Seriously huge. We are seeing this already in computer screens and batteries for cell phones. It is harder and harder to find the minerals needed to produce what people want to consume.
Despite their name, rare-earth elements are relatively plentiful in Earth's crust, with cerium being more abundant than copper; they are just difficult to extract.
The problem with them being "harder to find" is due to the combination of because China being the world's leading producer and the US-China relations at the moment. This is making it difficult for the US to obtain them.
If you cut a potato in half, stick an electrode into each half and place the two pieces with their cut sides very close to each other but not quite touching, have you made a capacitator?
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, weighing all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
Place one half potato over each ear.
Whisper you question quietly.
Await their answer.
If they do not reply within 23 minutes then they consider he question a bit half-baked.
Even so, and to bake better, wrap the entire assembly in foil (potato-halves, electrodes, head) and keep that in place until they do answer.
Maybe this is something well known, and I'm just late to the game: If you have a cordless tool, you are likely on a forced replacement scheme, and you don't know it. About 10 years ago I bought a cordless hedge trimmer, and its worked well. In the winter I bring it inside and store it, battery out, in the basement where it keeps relatively nice and warm. This year, after recharging the battery overnight, I went out yesterday to trim the hedge. The battery (NiCad) ran down after about 5 minutes, so I'm guessing its just not holding a charge any longer. No problem, I'll just go to the vendor, a national chain, and get a new battery, right? Um, no. That particular battery is no longer available. And so far, I've been unable to locate a third party replacement part.
It looks like the battery pack is screwed together, so maybe I can take it apart, and replace the individual cells. Maybe. Its probably soldered together, and I'm not sure I'd trust my soldering skills if I have to solder directly to the replacement cells, if I can even find something suitable.
So, in all likelihood, I'm going to have to bin an otherwise perfectly good hedge trimmer, just because I can't replace the battery pack. That's just wasteful. Not to mention an added cost. I do have an old pair of hedge trimming shears, and I used them to finish the job. Maybe I'll just stick with them. But if I replace the electric trimmer, I'll definitely consider a corded trimmer rather than cordless.
So if you have cordless tools that are a few years old, it might be worth buying a spare battery pack, or two, for the future.
My neighbor's a carpenter, and he's been all-in on battery-powered tools for years. What's especially convenient is that since he only buys tools from the same brand, his batteries are all interchangeable.
What amazes me is that his batteries will run power tools all day. Why can't I ever get more than 3 hours from a lousy laptop? Both use lithium-ion batteries. To the laptop manufacturers: Make them bigger/heavier, I don't care.
I found that if you don't use them regularly they tend to do crapo.
I did construction for about 30 years and have had many cordless tools and the pricier tools are good quality but the battery is a battery. I've had a Porter-Cable drill motor for 6 years or so, $80, one battery and charger on Amazon and after I retired didn't use it on a regular basis until recently and have had no trouble with it. I've had Dewalt that the battery went bad after a couple of years. So all in all I'd say it's a crap shoot, buy good but don't count on battery being of same quality.
This is why when last year I needed a new strimmer and a chainsaw, I bought petrol / gas powered ones.
Batteries are a PITA: they lose charge when it's cold (so they are flat when you want to use 'em), they don't last well, and replacements are expensive.
Hmm ... maybe it's not just the lack of a suitable charging infrastructure that keeps me driving a diesel car ...
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"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
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I've got a cordless strimmer and a cordless screwdriver - I have found that as long as I keep the batteries topped up and don't allow them to go completely flat they seem to last well.
My cordless screwdriver is 13 years old.
“That which can be asserted without evidence, can be dismissed without evidence.”