Very true. Unfortunately, this process just pulls gold from dilute sources and gathers it into nuggets, from small ones to very very large. No gold is being made new though, that would be great.
Very true. Unfortunately, this process just pulls gold from dilute sources and gathers it into nuggets, from small ones to very very large. No gold is being made new though, that would be great.
Well, that is the amount gold that is mined or recycled every year that is used in electronics. The thing is though, a lot of the gold used in electronics is never recovered. So a considerable amount of the gold used in electronics is removed from from circulation in a way the gold in jewelry or bullion or coins isn’t. It isn’t the primary driver of gold’s price increase, but it is a significant factor.
Gold prices have risen steadily for a long time, partly because of its use in electronics. Over $2500/ounce now. But another quirk of gold is the ease with which we can make very thin coatings of it over other materials, sometimes only a few atoms thick. So it is commonly used, but in very very small amounts per device.
Metric measuring systems are superior in almost every use case, with the exception, I think, of how temperature feels to us. As arbitrary as Fahrenheit seems, it does seem like a more natural scale to talk about the weather or body temp. The smaller units are nice for these purposes too. 0 being very cold and 100 being very hot feels less arbitrary than -18 and 38, even if celcius is more logical and easier to use for many other things.
But remember, electric motors also require next to no maintenance and can last for many years of runtime. Pros and cons.
Take that house so they never see that view again.
Well, I just said carbon fiber, but to be more exact it is forged carbon SMC, so yeah, careful engineering involved. Same stuff Lamborghini is using for some structural components, so probably fairly fit to purpose.
Well, it has a carbon fiber frame with a crumple zone in the front. They are going to put it through 3rd party safety testing. It won’t be as safe as a big SUV, sure, but I think it will be safer than an ebike. It also protects you from weather and has 35 cubic feet of storage in the back. I think ebikes are great too, but this does have more of the advantages of a car.
The benefits increase as the efficiency of the car increases though, check out Aptera. They say they get 10 miles per kwh, and they have a lot of surface area for panels. Enough that in ideal conditions they say they get 40 miles per day from solar. It is a bit different looking though.
Growing crops to make ethanol is not particulatly green. In fact, in most existing production loops we would be better off environmentally to just burn pure gasoline than produce the ethanol to mix into it, unfortunately. Too much water, too many tractors and trucks, and way too much electricity into ethanol production to be worth what we get out of it. And the bit of carbon the crops sequester doesn’t overcome it. Electric vehicles are by far the greenest option right now.
It won’t have started getting closer again before the Milky Way collides with the Adromeda galaxy in 5 Billion years, so it and anything we send on a similar path isn’t coming back.
Last year their revenue from selling cars, powerwalls, and solar tiles was around $90 million. Makes the stock price seem crazy, yes. But then they sold $1.8 billion of carbon credits to other auto manufacturers, and that costs them basically nothing. Still doesn’t justify the stock price, but makes it less ridiculous. Selling carbon credits is Tesla’s main business at this point, the things they make just provide the justification for it.
In general I agree with you for sure, we have way too many. But if there are any worth preserving, I’d say it’s the old ones in Scotland where golf was invented. And at least there they don’t have to be watered constantly.
Oh, it’s not the only reason, and the other may actually be worse. They sold $1.8 billion of carbon credits to other auto manufacturers last year. Which is pretty much free money to them. And hastens climate change, but, you know, free money.
I’d say anyone choosing to drive 74mph in a 25mph zone can be said to have disregarded safety. And if you haven’t realized you are going 74mph in a 25mph zone, you shouldn’t have a license, let alone be an officer.
I am not any kind of expert either, but I have been following this company for a couple of years. If it makes it to market and is at all price competitive i can’t see it not being a big deal. Granted, that is an if, not when, but they seem to be further along than most battery tech you read about.
No rare earth metals or even nickel or copper, has a very flat degradation curve even at charge rates up to 30C (testing stopped at 3k cycles in the coin cell tests), non flammable and non toxic. The only thing you would wish for is better capacity, but it is already better than any mass produced Li ion cell, and it has a theoretical maximum a couple times that of Li ions.
You’re right, battery news IS always breathlessly excited about the next crazy advancement, but they have a lot of things in their favor on this one. They broke ground on a manufacturing plant last year, which is not the case for most battery news stories. And the battery uses no rare earth metals, is non flammable, and performes better by nearly every metric than lithium ion. If they make it to market, I think they will absolutely be revolutionary.
A increasing percentage of new construction gets heat pumps. Some replacement HVAC units make the switch, but there is still a large portion of people who won’t because of misinformation and/or stubbornness.
But, unfortunately, most existing residential systems do not use heat pumps, under 20% in the US I believe.
They are too expensive. But only because auto manufacturers are only making midsized and larger suvs or luxury cars. The average price of an EV has dropped over 50% in China since 2015. That would have been tough for us to match, mostly because of batteries, but we could have made much more progress than we have.
The electric grid isn’t nearly as unprepared as people say. Sure, we need to build out more charging stations, but the grid as a whole far exceeds current needs. In fact, nationwide electrical usage is actually trending down in the US because of efficiency gains. Better building codes, heat pumps, LED lighting, if it uses electricity newer stuff is more efficient. If we had sold 8 times as many EVs in 2023 than we did, electricity usage would have stayed about flat.
There is a vaccine for chickens and turkeys for the bird flu. But poultry barns only use it when there are already outbreaks in their area, they don’t consider the cost worth it most of the time. And no one is giving it to wild birds.