whats the speed of dark

attica

Your left leg, I like.

I have nothing against your left leg, unfortunately, neither do you.

Jay dubbleU

Attica wrote:

Your left leg, I like.

I have nothing against your left leg, unfortunately, neither do you.

Damn you - that was my next line

No-one likes a smarta*se

attica

I think we've successfully managed to derail the thread into complete "off topicness"

Merry Christmas all

Jay dubbleU

Merry Christmas

tailwindhome

I'm so fast that last night I turned off the light switch in my hotel room and got into bed before the room was dark.

The speed of dark - not as fast as The Greatest

garrynolan

So what's a Black Hole if not "dark" that sucks everything into it? My head hurts!!

garrynolan

Splottboy wrote:

If it's Brains Dark, it takes about 2 mins to settle. Guinness is bit longer and
Murphy's some where in between...

What about Beamish (Cork stout).

Jay dubbleU

garrynolan wrote:

So what's a Black Hole if not "dark" that sucks everything into it? My head hurts!!

On the contrary a Black Hole is full of all the light it has sucked in - however its gravity prevents light from escaping beyond the event horizon and therefore it appears to be dark

garrynolan

Jay dubbleU wrote:

garrynolan wrote:

So what's a Black Hole if not "dark" that sucks everything into it? My head hurts!!

On the contrary a Black Hole is full of all the light it has sucked in - however its gravity prevents light from escaping beyond the event horizon and therefore it appears to be dark

So... what happens when the Black Hole is full - as it must be of a finite size? Where does the light go?

Jay dubbleU

garrynolan wrote:

Jay dubbleU wrote:

garrynolan wrote:

So what's a Black Hole if not "dark" that sucks everything into it? My head hurts!!

On the contrary a Black Hole is full of all the light it has sucked in - however its gravity prevents light from escaping beyond the event horizon and therefore it appears to be dark

So... what happens when the Black Hole is full - as it must be of a finite size? Where does the light go?

Why must a black hole be of finite size ? Surely as long as it draws in matter it can keep on growing ? Or would it reach a point where it collapses under its own gravity field

sarajoy

Jay dubbleU wrote:

Fireblade96 wrote:

If we assume that the speed of light is approximately 300,000,000 metres/sec,

and Darkness is negative light

then clearly the speed of Dark is -300,000,000 m/s

QED


(I failed many maths exams)

Ah - basic mistake in the hypothesis there - dark is the absence of light and clearly just hangs around waiting for light to turn up

As says Pratchett: "Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it."

Sure in one or two of the books he mentions the morning sun as a slow, sludgy traversal across the land, rather liked that..!

Alinshearah

I don't have darkness now that I have my P7 Dealextreme torch

Jay dubbleU

sarajoy wrote:

Jay dubbleU wrote:

Fireblade96 wrote:

If we assume that the speed of light is approximately 300,000,000 metres/sec,

and Darkness is negative light

then clearly the speed of Dark is -300,000,000 m/s

QED


(I failed many maths exams)

Ah - basic mistake in the hypothesis there - dark is the absence of light and clearly just hangs around waiting for light to turn up

As says Pratchett: "Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it."

Sure in one or two of the books he mentions the morning sun as a slow, sludgy traversal across the land, rather liked that..!

Alas Sara that only applies in flat worlds carried on the back of four elephants standing on the back of a giant turtle - that's because the laws of magik apply and not the laws of physics

sarajoy

Oh, I know. I still prefer their way of things - who knows, maybe we are indeed an experiment floating in a glass dome somewhere in the Unseen University.

Yes, I'm rather geeky, and yes I get the real-world physics (well, before it goes all weird and theoretical) - I'll have to soon anyway, I'm on my way to teaching Secondary Physics innit...

Kieran_Burns

Jay dubbleU wrote:

garrynolan wrote:

Jay dubbleU wrote:

garrynolan wrote:

So what's a Black Hole if not "dark" that sucks everything into it? My head hurts!!

On the contrary a Black Hole is full of all the light it has sucked in - however its gravity prevents light from escaping beyond the event horizon and therefore it appears to be dark

So... what happens when the Black Hole is full - as it must be of a finite size? Where does the light go?

Why must a black hole be of finite size ? Surely as long as it draws in matter it can keep on growing ? Or would it reach a point where it collapses under its own gravity field

A Black Hole is the region of space where the escape velocity is so high that it is greater than the speed of light. It is a finite area bounded by the gravity gradiant where the all the matter in the immediate area is pulled in and no more is captured.

Oh and a Black Hole cannot collapse any more. This is the fundamental principle behind it: all the matter from the core of the Star that formed it, has collapsed so far it cannot go any further.

Never under-estimate the power of the Dark Side.... 8)

deptfordmarmoset

Dark chocolate is definitely slower than white chocolate. 1000% FACT!

Jay dubbleU

sarajoy wrote:

Oh, I know. I still prefer their way of things - who knows, maybe we are indeed an experiment floating in a glass dome somewhere in the Unseen University.

Yes, I'm rather geeky, and yes I get the real-world physics (well, before it goes all weird and theoretical) - I'll have to soon anyway, I'm on my way to teaching Secondary Physics innit...

B***er the physics Sara - teach the magik - sometimes the two are indistinguishable - even knowing how stars form and decline doesn't take away the wonder

colintrav

Wallace1492 wrote:

-null- wrote:

Isn't that the speed the Earth is rotating at. Or the moon moving round the Earth.

It is indeed virtually the same as the speed of the Earth rotation, with a slight adjustment in there for the speed of the earth travel through the comsos and the moons path in relation to the sun and earth.

Recently there was a bunch of religious wacko's that claimed the Earth didn't rotate

That's religious weirdo's for you ..

DonDaddyD

Dark doesn't have to move. The only way we can perceive dark is with the 'absence' of light.

It is entirely possibly for dark to be present because light has moved, escaped or stopped moving. I.e.

When you turn on a light switch light is created it moves and illuminates the room.

When you turn off a light switch, it becomes dark because light is no longer present within the room. Dark hasn't moved (or moved on or stopped moving) light has.

Wallace1492

colintrav wrote:

Wallace1492 wrote:

-null- wrote:

Isn't that the speed the Earth is rotating at. Or the moon moving round the Earth.

It is indeed virtually the same as the speed of the Earth rotation, with a slight adjustment in there for the speed of the earth travel through the comsos and the moons path in relation to the sun and earth.

Recently there was a bunch of religious wacko's that claimed the Earth didn't rotate

That's religious weirdo's for you ..

Also another lot that recons there was no Dinosaurs, and that the universe was created in 7 days..... madness I say - we all know it was instantaneous in the Big Bang!!

Jay dubbleU

But what was before the Big Bang - ah the question theoretical physicists hate

amnezia

Jay dubbleU wrote:

But what was before the Big Bang - ah the question theoretical physicists hate

nothing.. time cannot exist without space. if time does not exist then there is no before.

Jay dubbleU

Ah you mean first there was nothing - then something which exploded ?

Personally I'm in favour of the cyclic universe theory - universe expands - universe contracts - big bang - another universe - neat huh ? 8) 8)

tailwindhome

Wallace1492 wrote:

colintrav wrote:

Wallace1492 wrote:

-null- wrote:

Isn't that the speed the Earth is rotating at. Or the moon moving round the Earth.

It is indeed virtually the same as the speed of the Earth rotation, with a slight adjustment in there for the speed of the earth travel through the comsos and the moons path in relation to the sun and earth.

Recently there was a bunch of religious wacko's that claimed the Earth didn't rotate

That's religious weirdo's for you ..

Also another lot that recons there was no Dinosaurs, and that the universe was created in 7 days..... madness I say - we all know it was instantaneous in the Big Bang!!

There are another lot of headbangers who believe we are descended from apes.

Jay dubbleU

We are not descended from apes - we share a common ancestor with other primates

MonkeyMonster

Jay dubbleU wrote:

We are not descended from apes - we share a common ancestor with other primates

Speak for yourself

jonginge

MonkeyMonster wrote:

Jay dubbleU wrote:

We are not descended from apes - we share a common ancestor with other primates

Speak for yourself

We did wonder :P

The Ancestor's tale. An interesting read, if you like that sort of thing.

Wallace1492

I believe the Moon's made of cheese.....

tailwindhome

Jay dubbleU wrote:

We are not descended from apes - we share a common ancestor with other primates

That only applies to you Earthlings

Wallace1492

Jay dubbleU wrote:

We are not descended from apes - we share a common ancestor with other primates

It's hard to tell.....