Is play school big over there?

What?! Noooooooooo!

Khan academy got me through the end of high school and engineering. It really made the concepts a lot more understandable than the lecturers.

If it’s content is still up to scratch, I hope it’s getting the recognition it deserves!

Ah wow, I had current lfp at around 220-250 but that looks like it’s on the R&D lines and not in series production yet

I guess with the sheer amount of research being lumped into Lithium batteries at the moment, I would be surprised if it is overtaken by anything short term at least in the auto space. Let’s see…

Just to clarify, the article states these are for low voltage systems inside cars, and not powering cars themselves.

Which makes more sense as the density of Na-ion is ~30% less that Li-ion.

The auto industry does not have a choice. They need batteries and will not get them from European suppliers, as they cannot deliver the same cost and quality AND they need the growing wealthy population there to keep their bottom line up.

Maybe 5-10 years down the line there will be enough forcing of Chinese battery suppliers to open factories in Europe to reverse this, but it is not going to happen soon. Maybe the tarrifs will speed this up, maybe not.

Do the economics of nuclear make sense though? A quick search showed around $5k/kW capacity. That’s $5 billion per GW. Then there’s permit and build times on top of that.

Surely renewables + distributed storage is going to become key?

Is there already extensive precedence of undersea, long distance power distribution? I could imagine the losses would be outrageous at that distance.

Bluetooth and the 2.4 GHz ISM band is not electricity and is highly resilient to moderate noise over short distances. Problems are usually caused by hardware related issues.

I would argue all connected cars have become that. If you’re buying anything newer than 2015, in all likelihood it’s a spyware filled go-kart.

Not linked to your identity…

…

Identifiers…

This seems contradictory. I’ll avoid them for now, thanks!

I’m curous about these, how is the privacy on the apps? Having my data mined from my lightbulbs is my last consideration against taking the step tbh

What?

Obviously, more plants are needed to combat the destructive USB industry.

We’re not there yet. To me the obvious would be to explain to them something like browsing the internet is similar to being alone in the world’s biggest city and you cannot always be there to protect them whilst online?

I am definitely over simplifying it, but I feel portraying the message that there are good people, bad people and absolutely abhorrent people, is all you can do to protect kids online. Also that everyone takes a big step to the dark side when they are anonymous because for some reason, watching a train crash is more interesting to us that watching one drive past.

I never really thought about controlling screen times for anything other than to make sure kids’ heads spend some time in reality, do you feel it is an effective or important tool for protection too?

C

The paper itself, which is linked in the BBC article, is quite a read too Original Article

Early adopters will profit the most, it’s a non-issue.

I’m sorry, are we really going to pretend long haul flights will become hydrogen in the near future? Has any airport begun building, or even thinking of, refueling infrastructure?

I would argue that your perspective is a narrow one and you need to change what info you are consuming. My personal take (if you have any interest):

1. Most of the people on this world are not rich enough to be part of daily traffic jams. They are just trying to survive and enjoy life with what they have.

2. Current resource competition is driven by profit seeking and not bourne out of necessity (i.e. we’re not “competing” in the traditional sense, where countries at war are doing so to feed their people etc… At least, not yet.)

3. There is definitely more space and resources available for more people, if we learn to better distribute what we have - the how of this, while keeping everyone happy, is the billion dollar question.

4. You can choose to live in the jungle by yourself if you want, no one is (hopefully) forcing you to take part in working etc.

5. If you can, you should go travel more. If you can’t, go volunteer some of your time to your community. It tends to clear my “the world is going to shit” thoughts. Sure, there’s problems everywhere, and we should fight for the ones we feel are important, but there is also a lot of great things happening.