Not quite, the true invariant quantity is the magnitude of the spacetime 4 vector, which depends on rest mass.

https://en.m.wikipedia.org/wiki/Four-momentum

It actually goes further than that. In spacetime you’re always going the same speed, the more in space, less in time.

At least from the special relativity perspective.

That seems around what I’d expect the measurement error to be anyway

There are other elections throughout the year… Midterms at the federal level, and often state and local elections too.

Admittedly how it works in the US, but I’m sure still applies in other countries, maybe not everywhere.

The cost to benefit looks way better if you think long term. Especially with climate change on the horizon to compete with planes but emission free.

One of the major problems for upgrading lines is straitening the route, and people fight the emniment domain way harder than they do for roads.

I’m not disagreeing with that, but high speed rail from Boston to Miami would be extremely practical. Efficient, fast, convient travel along that corridor reducing dependence on cars for city to city travel. And the area has both the demand and density to support such projects.

And while its impractical now, if it was built to cheapen regional travel in the region it could grow to high use spurning economic development.

I’d love to take a train at a reasonable pace from near to DC to my family in Pittsburgh, or to visit New York.

I might even enjoy a cross country trek to the rockies for skiing on a train, but it’s never going to be an option.

East coast united states has similar population density to most of europe.

It’s just out west we have a lot of empty land.

Calling light electric seems redundant. Its like saying electric electromangantic radiation.

Because lemmy search sucks. Its very specific, and usually the most relavant stuff is buried by tangetially related things.

How so? Is it because they’re switching to electric vs hydraulic?

What’s so mind boggling stupid to me is that full evs are mechanically so much simpler.

Their reliability should be fantastic.

But no oems cheap out on things like contactors in the battery.

Batteries should also be treated as consumable. Easily replaceable, maybe even in parts.

Electric motors seem like they should last forever too.

But nope, instead we get skimped cars with too big batteries, and seemingly no money spent anywhere else.

Manufacturers need to remember that planned obselesence only works when you know what your doing, and right now they early don’t.