Tegan's first story is the Tom Baker story Logopolis, which features TARDIS-in-TARDIS shenanigans. Don't think it ever happened to Davison.

Just make a FaceSpace page, Kev.

One Times One Equals Two

No it doesn't. We need not read further. The guy either doesn't know what multiplication is, or he doesn't know what "one" is. Anything else he has to say can be summarily dismissed as the ravings of a person with mental health issues.

Such a great sketch show - hope it’s back with more soon! (Though Cariad Lloyd seems quite busy these days!)

Cariad Lloyd's never been in the cast.

You can sort of argue that that is the case from an outside perspective, but the person inside the black hole is still free, for example, to wave their arm in any direction they like, locally.

The singularity becomes a moment in future rather than a location in space. In that sense, time is the unidirectional dimension, which is the same as it always was.

That video is absolute horsepoop. The Mandela Effect is nothing more than people misremembering things.

And thirdly, the code is more what you'd call "guidelines" than actual rules.

I see the other guy got downvoted for this as well, but honestly, it really was just "The customer is always right."

The "second half" is a myth.

Guy in white shirt: y'know what this is close enough, I can walk from here

Eh... to be honest, no. Don't get me wrong, better writing would have a helped a lot, but I do think she wasn't quite right for the part, and that a different actor (not "better"; she is a great actor in other roles) would have been able to do more with the writing. I do love her personal enthusiasm for the role, though.

It's mixed in 5.1 but for most people it ends up being downmixed to stereo. In the UK, only the terrestrial or satellite broadcast is in 5.1. iPlayer is stereo only, including the UHD version.

It's a common complaint that the downmix makes things harder to hear, and it affects other flagship shows with 5.1 soundtracks like the big Attenborough documentaries.

If velocity dilates time, shouldn't there be an absolute 0 for velocity? Where you experience the most time.

No, velocity's fully relative.

If hawking radiation is the casimir effect sending in anti-matter into a black hole, reducing it's mass.... doesn't normal-matter fall in half the time balancing it out? Why would black holes radiate away without their mass depleting?

That formulation of Hawking radiation - which is a misleading simplification anyway - has nothing to do with matter vs. anti-matter (both have positive mass). It "works" (though again, it's not an accurate depiction of reality) because the distortion of spacetime is so great that the in-falling particle is always considered to have negative mass from the point of view of an outside observer.

and our 3 dimensions and time really gets reduced to 2 dimension and "going in"

There are still three space dimensions inside a black hole. There's no sense in which there is a reduction.

Mine is that objects are (approximately) attracted to where gravitating bodies are, not where they were.

This always seems to annoy a lot of people who then immediately dive for the downvote button without even bothering to ask why that would be the case.

People think it's wrong because they imagine that gravity is something that is constantly emitted by massive objects. But gravity wells are actually static fields which are already moving with the bodies they are associated with. Gravitational waves travel at the speed of light, but gravity doesn't travel at all:

[T]he static potentials from a moving gravitational mass (i.e., its simple gravitational field, also known as gravitostatic field) are "updated," so that they point to the mass's actual position at constant velocity, with no retardation effects.

https://en.wikipedia.org/wiki/Retarded_position

See also: http://www.tapir.caltech.edu/~teviet/Waves/empulse.html


On a vaguely related note I also like the fact that when you see the Sun up in the sky, you are looking at it where it is (ignoring atmospheric refraction), not where it was (because the Sun's travel across the sky is due to the Earth's rotation).

If you say 'shoe blue plastic big' you sound like you're having a stroke, if you say 'big blue plastic shoe' people understand you're talking about a big blue shoe made of plastic.

More interesting is if you restrict the word juggling to just the adjectives. Keep the noun at the end where we know it belongs, and you still have these possibilities:

Big blue plastic shoe
Blue big plastic shoe
Big plastic blue shoe
Blue plastic big shoe
Plastic big blue shoe
Plastic blue big shoe

Only one of them really sounds right.

There's plenty of useful, even life-saving tech we take for granted from the last 5, 10, 25 years which we just wouldn't have if it wasn't for the study of physics.

It isn't all about figuring out the grand workings of the universe.

I wouldn't necessarily say "tuning in early", but I would say "being at home on a Saturday night instead of going out."