Physics Conundrum.

[RandomGrinch]

What's the speed of propagation of a solid bar? The bar won't be moving instantly over that distance, as that would violate the speed of light, solid or not it will take time for the movement to propagate.

It's a physics problem, but it's not a simple one

50'000 years for the propogation, according to one source.

 

[Dork Lard]

Who cares, is this infinitely Bar open or not

There are an infinite number of Bars in the universe.

Let's have an intergalactic pub crawl

 

[RandomGrinch]

Let's just try to imagine that it is an infinitely rigid bar that weighs nothing

Yay! If it is infinitely rigid and weighs nothing, you have broken a few 'laws' of physics. In particular, 'nothing can travel faster than the speed of light' - in that case, the light would turn on instantly

 

[Old Salt]

There are an infinite number of Bars in the universe.

Let's have an intergalactic pub crawl

Count me in and I think Boris will be up for it as long as Dominic is not invited

 

[denso13]

Like I said, you can't buy one at Screwfix.

What about Toolstation? I find that one or the other usually has most things.

 

[Dork Lard]

Count me in and I think Boris will be up for it as long as Dominic is not invited

At last count, there are an infinite number of Dominics in the universe !

 

[Dork Lard]

Yay! If it is infinitely rigid and weighs nothing, you have broken a few 'laws' of physics. In particular, 'nothing can travel faster than the speed of light' - in that case, the light would turn on instantly

Are you pretending to answer the question after you've already heard the answer? Because I'm not sure that you 'get it'.

An infinitely rigid bar that weighs nothing may be beyond our current capabilities, but the existence of one breaks no laws of physics.

The conundrum relates to how long it takes the force used to travel the distance.

 

[IT Minion]

Are you pretending to answer the question after you've already heard the answer? Because I'm not sure that you 'get it'.

An infinitely rigid bar that weighs nothing may be beyond our current capabilities, but the existence of one breaks no laws of physics.

The conundrum relates to how long it takes the force used to travel the distance.

Technically he got there before I did.

 

[^woody^]

I'm just here to see how long it takes notch to make this a Brexit thread.

It's post #24 and not even a mention. Is he dead? Has anyone checked?

 

[Dork Lard]

I'm just here to see how long it takes notch to make this a Brexit thread.

It's post #24 and not even a mention. Is he dead? Has anyone checked?

I have to admit, it was intended more as a psychology test than a demographic intelligence exercise.

 

[^woody^]

Not multiple choice, not interested.

 

[RandomGrinch]

Not multiple choice, not interested.

We do have some multiple choice questions in our UG exams; mind you, they are quite difficult!

 

[^woody^]

We do have some multiple choice questions in our UG exams; mind you, they are quite difficult!

I didn't get where I am to day with out a 1 in 3 chance of guessing correctly

 

[^woody^]

Anyway, with this unfeasibly long bar - which is ironically against all the laws of physics, are we to assume that those other laws still apply?

 

[Dork Lard]

Anyway, with this unfeasibly long bar - which is ironically against all the laws of physics, are we to assume that those other laws still apply?

Could you name one please.