Their policy: https://media0.giphy.com/media/v1.Y2lkPTZjMDliOTUyNHc1eG4zNGxpb3g3ejB4djJmZnRvdmlqMHdvY21xdWo5cW91ejc5ZSZlcD12MV9pbnRlcm5hbF9naWZfYnlfaWQmY3Q9Zw/3otOKTjlqkF3C1XhFm/giphy.gif

New Zealand!

What I mean is that the bulk of current copper wiring goes towards distribution and consumption, not generation.

Yes, but big batteries everywhere is going to effect that if there’s copper in lithium batteries, and apparently there is.

This isn’t a big thing. This is a constant thing in every system. It’s the push and pull between efficiency and resiliency. More storage capacity is less efficient when things are going well, but is more resilient and adaptable when they’re not.

Excess storage capacity, sure.

But inflating the base battery capacity to cover people having showers at 5pm because it’s easier than storage water heaters and time/remote controls is stupid. You can reduce the base need for batteries by reducing the need for electricity in the first place and reducing the use of vehicles that need to carry batteries in place of e.g. overhead catenary.

You’re wrong in terms of long distance power lines being mostly copper, but this does seem a lot like fossil fuel propaganda.

Motors, generators, and transformers can be built using aluminium; they’re just a bit bulkier and less efficient. Very common practice.

It looks like CCA might be making its way back into house wiring in the near future, with much lower risks than the 70s aluminium scare.

The big thing is that batteries really should be a last resort, behind demand response (using power when it is available, rather than storing it for later), long distance transmission, and public transport instead of private vehicles.

That’s incorrect. Aluminium is about 30% worse by volume than copper, meaning you need to go up a size. What stopped it being used for houses was that the terminations weren’t good enough, because aluminium has different thermal expansion and corrosion properties, plus they were using much worse alloys. That’s now mostly fixed and if you’re in the US, there’s a very good chance that your service main is aluminium, and there’s talk of allowing copper-clad aluminium (CCA) for subcircuit wiring.

Per mass, aluminium is a better conductor, which is why it’s almost exclusively used overhead and in pretty significant volumes underground. The power grids were built on ACSR.

Even “App App” would be better.

Google has removed the video through an automated process without talking to the owner of the channel or verifying who owns the video in the first place.

Honestly sounds like Hanlon’s Razor on Google’s part. No collusion necessary, just can’t be bothered to maintain/staff an actual effective system.

Do you remember where you played it?

It sounds/looks a little like some of the stuff from bontegames.

It’s heavily dependant on the plastic type. PET bottles are pretty good.

Even if it’s not recycled, it’s still far better to landfill or burn it than have it hit waterways.

Are you talking about China or the US there?

That’s not bad pricing wise. There’s very very little prosumer gear that’s multi gigabit and it’s all much higher price, or it’s just a PC with several NICs.

If and when we move to hyperfibre this is going to be pretty high up on the list.

Lots of places also have variable limit signs that get updated based on traffic, accidents etc.

Here in NZ those seem to all be marked on the speed limit maps as 100km/h even if in some places the signs never go above 80.

Ngauranga Gorge is one such location and I believe has the country’s highest grossing speed camera.

“This accident will have been preventable”.

The question seems open to interpretation (which is bad for surveys like this).

If I visit a location that was the site of a mass shooting a few years later, have I been “physically present on the scene of a mass shooting”?

I think you could reasonably answer yes: you’ve been to the physical place where it happened, even if not at the time it happened.

Everything burns up regardless of size. Big things might not finish burning by the time they hit the ground.

You need either enough thrust to slow you to ~mach 2, or a heat shield to do the same by aerobraking.

It’s called aerobraking for a reason: you’re using friction to turn kinetic energy into heat to slow down, but that heat goes into the air and your heat shield instead of brake pads and rotors.

This is why it’s important to operate with enough available reserves (fast and slow) to cover the unexpected loss of your biggest generator, transformer, and/or transmission line.

Their black start procedures are going to be getting a good workout; I hope they’re well tested.

Flags shall be flown from a balloon tethered to the top of the flagpole.

Normally I’d be against the waste of helium but I’m prepared to make an exception.

603 for maglevs, 574.8 for steel rail, set in France in 2007 by a hotted up, modified TGV.

China holds the record for a stock train at 487, set in 2010.

(all per Wikipedia)

It looks like the article might be implying that they will be the fastest trains operating in revenue service when they enter service, but that surely needs to be demonstrated with a production train in revenue service.

There’s still a lot of flights through Russian territory.

Korean 007 could have been intentional (I believe the pilot involved still claims it was a military plane) but Hanlon’s razor still applies here. They’re firing a lot of SAMs at many targets without good controls.

The US is barely better; they shot down one (nearly two) of their own fighters about a week ago and then there’s the Vincennes incident.

On underground lines, the PSDs are mostly for air-sealing. It allows you to air-condition the platforms without trying to cool the tunnels, and it helps the piston effect of moving trains pull air through the tunnels, rather than just swirl air around each platform.

Also probably helps for fire engineering.