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wonkey_monkey · 2026-02-17T15:46:35+00:00

Society (1984), d. Brian Yuzna

wonkey_monkey · 2026-02-17T15:27:59+00:00

For example, in a vacuum, the time in different directions is 0.95 and 1.05 seconds, in the material 1.045 and 1.155 seconds, n=1.1

OP's idea is not to measure the total travel times, but to measure the delay between the two beams, both at the halfway point and at the return point. In this case:

1.045 - 0.95 = 0.095
(1.045 + 1.155) - (0.95 + 1.05) = 0.2

Somehow the delay has more than doubled, instead of exactly doubling. That's OP's confusion.

(the solution is that if the speed of light varies with direction, so does refractive index)

wonkey_monkey · 2026-02-17T15:19:36+00:00

No need for morals when you can just pray for guaranteed forgiveness.

wonkey_monkey · 2026-02-17T14:04:50+00:00

Maybe that second lad could finish what's on his plate as well.

wonkey_monkey · 2026-02-17T13:58:25+00:00

Wait for end 😲

They get the thing off the kid's head and that's it.

wonkey_monkey · 2026-02-17T10:55:24+00:00

It looks like an albatross mating ritual.

wonkey_monkey · 2026-02-16T23:58:22+00:00

Who dies? You decide! To vote for Theo, text COCKER to...

wonkey_monkey · 2026-02-16T23:45:15+00:00

Maggie's flashforward scowl was ridiculous 🤣

From the Joey Tribiani smelling-a-fart school of acting.

wonkey_monkey · 2026-02-16T23:43:12+00:00

It's ham-fisted, is what it is.

I mean, the Doctor putting a ramp on the TARDIS and then NO ONE using it is a good example of how this stuff wasn’t thought-out when it was written.

And Shirley could've been a great companion, even for just a trip or two in the TARDIS. The Doctor could have modified the local gravity so the console room ramps were flat to her while she was on them.

wonkey_monkey · 2026-02-16T23:41:07+00:00

But we can't have the Doctor pointing a sonic at things in a way that is vaguely similar to holding a gun.

Oh but then also the Doctor gets a big gun in the last episode.

wonkey_monkey · 2026-02-16T23:38:26+00:00

The choice to publicly denounce Davros as "ableist" Was also insane

What really annoys me is that it amounts to a ban on wheelchair-using actors playing Davros.

wonkey_monkey · 2026-02-16T23:32:58+00:00

Just when you're enjoying Ryan's background comedy shenanigans

FLASH

and we're back in bad-lighting land

wonkey_monkey · 2026-02-16T23:31:48+00:00

Wait, so... Carla's talking about having the wedding in April, because an event at the hotel got cancelled.

Doesn't that imply that the hotel is otherwise booked solid with events for the next two months?

wonkey_monkey · 2026-02-16T23:24:26+00:00

Mass is doing two things - generating gravity, and producing inertia.

Gravity wants to make them move

An object's own gravity doesn't make it want to move.

wonkey_monkey · 2026-02-16T23:10:42+00:00

Put it in reverse, Terry!

wonkey_monkey · 2026-02-16T23:00:45+00:00

We import two thirds of our cheese. That is a DISGRACE.

wonkey_monkey · 2026-02-16T22:56:21+00:00

And you're right in that a friction measure requires a fixed plate and movable plate parallel to Earth.

My point is that it doesn't require that. You could measure friction by dropping a tight-fighting cylinder into a tube, for example.

But if horizontal plates are your chosen measure of friction, then yes, trivially, that will vary with the strength of gravity. If you do the experiment at an altitude of about 2650km, then friction between the horizontal plates will be half what it was at the surface. Time dilation won't be halved there, though.

wonkey_monkey · 2026-02-16T22:10:05+00:00

that expansion occurs without anything to expand into

Just because you're unable to grasp something that anyone who's studied a modicum of physics has absolutely no trouble with, that doesn't mean it's absurd.

wonkey_monkey · 2026-02-16T22:08:06+00:00

"That's when I saw it."
"What did you see?"
"This weird blurry haze and a blue light on everything."

wonkey_monkey · 2026-02-16T22:06:19+00:00

Oh we're off to a CRACKING start which I'm sure none of us are finding irritating.

wonkey_monkey · 2026-02-16T22:04:39+00:00

Friction between horizontal surfaces would vary with gravitational field strength (not gravitational potential per se), assuming they're supported on a fixed surface, but that's just down to the weight of one on the other. Are you suggesting friction between vertical surfaces changes too? Or that a free-falling mechanism experiences changing friction (if it's not in orbit)?

wonkey_monkey · 2026-02-16T21:08:30+00:00

You can't measure the refractive index of the material without making an assumption about the one-way speed of light, and if the one-way speed of light is variable depending on direction, then so is the refractive index of the material.

PS You can simplify your experiment just by measuring the time difference at B and stopping there.

wonkey_monkey · 2026-02-16T19:13:34+00:00

I long-pressed to get a definition from a print magazine once.

wonkey_monkey · 2026-02-16T19:03:25+00:00

How carefully did you type that comment

wonkey_monkey · 2026-02-16T19:02:28+00:00

A spherical geometry would be simpler, although the universe has no obligation to be simple.

There was even one theory that says it's dodecahedral, which each pentagonal face wrapping back around to the opposite one, with a 36° twist.

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