Things you always wanted to know the answer to [Vol. 4]

Things you always wanted to know the answer to [Vol. 4]

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Clockwork Cupcake

74,509 posts

272 months

Sunday 8th December 2019
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simoid said:
My brain says no, because the T-Rex died 65 million years ago...?
Exactly. You're viewing events that happened in the past, and no matter how fast you go they are still in the past.

If you are at point A that is 65 million light years from Earth then you're viewing light that left the Earth 65 million years ago.

If you warp to point B that is 35 million light years from Earth, then you're viewing light that left the Earth 35 million years ago.

If you warp straight to Earth then you see light that is leaving the Earth now.

At no point do you travel in time, only space.

Edit:

Halmyre said:
No. Your planet is receiving 65 million year old photons with pictures of dinosaurs. If you teleport to our planet (you do have the required visa and vaccinations?) you arrive in the present day.
Yup yes



Clockwork Cupcake

74,509 posts

272 months

Sunday 8th December 2019
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talksthetorque said:
Also :
Say you were travelling at 1.5 x lightspeed,
When you stop (instantaneously of course wink ) on Planet Zog and look backwards where you came from with the aid of the Acme Telescope you would see your journey in reverese at twice the speed it happened.
No. Relativity is a bit odd like that.

For example, if you are travelling at lightspeed and turn your headlights on, the light from your headlights will leave you at the speed of light. The rules we are used to in normality don't apply and it feels counter-intuitive. And Quantum Physics is even more crazy.

I did degree level Physics and it still bent my mind. silly

SCEtoAUX

4,119 posts

81 months

Sunday 8th December 2019
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What would be the optimum diet during a day to have really bad wind during the following day?

Welshbeef

49,633 posts

198 months

Sunday 8th December 2019
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Why didn’t all other car markers adopt the much higher thermally efficient Pumpe Dusse engines that VW had instead of common rail.

Pumpe dusse really strong engines and remarkable real world economy. Common rail much weaker all round.

MartG

20,664 posts

204 months

Sunday 8th December 2019
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SCEtoAUX said:
What would be the optimum diet during a day to have really bad wind during the following day?
Don't know about solids, but Strongbow Pear cider always makes me fart hugely the next day

Mothersruin

8,573 posts

99 months

Sunday 8th December 2019
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SCEtoAUX said:
What would be the optimum diet during a day to have really bad wind during the following day?
Something that is, or will ferment in your guts.

Welshbeef

49,633 posts

198 months

Sunday 8th December 2019
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MartG said:
Don't know about solids, but Strongbow Pear cider always makes me fart hugely the next day
No real ale is the key.

Go to the annual Reading beer festival stay there for the duration - you will be hanging but next day and as your sleeping you’ll stink out the house.

Ayahuasca

27,427 posts

279 months

Sunday 8th December 2019
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SCEtoAUX said:
What would be the optimum diet during a day to have really bad wind during the following day?
Sugar free chewing gum and apples.

Welshbeef

49,633 posts

198 months

Sunday 8th December 2019
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Does anyone have any ainti labour posters?

I’ve seen many anti Tory ones which appear to be a Tory poster but one saying we will not shoot or murder the disabled but our austerity has already killed hundreds of thousands of poor and disabled people “vote Tory”

I’d like to share a challenging one in reverse to a socialist “friend”

poing

8,743 posts

200 months

Sunday 8th December 2019
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Welshbeef said:
Does anyone have any ainti labour posters?

I’ve seen many anti Tory ones which appear to be a Tory poster but one saying we will not shoot or murder the disabled but our austerity has already killed hundreds of thousands of poor and disabled people “vote Tory”

I’d like to share a challenging one in reverse to a socialist “friend”
https://www.pinterest.co.uk/pin/666884657295420971/
https://www.pinterest.co.uk/crmjhn/labour-6/

Just google labour meme or Corbyn meme

Clockwork Cupcake

74,509 posts

272 months

Sunday 8th December 2019
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I'm looking forward to the election being over so people can just go back to moaning how st the government is (regardless of who gets in), rather than actively canvassing.

All the electioneering is a real pain in the neck and I've had to temporarily mute some of my more vocally political friends.

gazzarose

1,162 posts

133 months

Sunday 8th December 2019
quotequote all
Clockwork Cupcake said:
simoid said:
My brain says no, because the T-Rex died 65 million years ago...?
Exactly. You're viewing events that happened in the past, and no matter how fast you go they are still in the past.

If you are at point A that is 65 million light years from Earth then you're viewing light that left the Earth 65 million years ago.

If you warp to point B that is 35 million light years from Earth, then you're viewing light that left the Earth 35 million years ago.

If you warp straight to Earth then you see light that is leaving the Earth now.

At no point do you travel in time, only space.

Edit:

Halmyre said:
No. Your planet is receiving 65 million year old photons with pictures of dinosaurs. If you teleport to our planet (you do have the required visa and vaccinations?) you arrive in the present day.
Yup yes
Aiui, if we show everything down...

Geezer 1 paints a picture of Big Ben at 12.00. He takes it show his mate, Geezer 2 in Cardiff, by driving at 60mph, which in this example is the speed of light, for 2 hours. Geezer 2 can now 'see' London at 12.00, but it's actually 14.00. He then jumps in his car and drives at 2 x the speed of light, ie 120mph, he gets there in an hour, but even though he drove at 2 x the speed Geezer 1 did, he still arrives at 15.00.

At least I think that's about it!

StanleyT

1,994 posts

79 months

Sunday 8th December 2019
quotequote all
Clockwork Cupcake said:
talksthetorque said:
Also :
Say you were travelling at 1.5 x lightspeed,
When you stop (instantaneously of course wink ) on Planet Zog and look backwards where you came from with the aid of the Acme Telescope you would see your journey in reverese at twice the speed it happened.
No. Relativity is a bit odd like that.

For example, if you are travelling at lightspeed and turn your headlights on, the light from your headlights will leave you at the speed of light. The rules we are used to in normality don't apply and it feels counter-intuitive. And Quantum Physics is even more crazy.

I did degree level Physics and it still bent my mind. silly
How does that apply to BMW indicators and the light emitted from those? Are they all travelling so fast in the company repmobile 116Ds that us mere mortals actually can't see the indicators.................until after they have completed the manoeuvre?

I know Audi cars it is just because the driver is an arblacksehole.

RizzoTheRat

25,135 posts

192 months

Monday 9th December 2019
quotequote all
Why is Truffle Philadelphia cheese only a "Limited Edition"? It tastes so good why wouldn't they make it part of their standard range?






Welshbeef said:
Why didn’t all other car markers adopt the much higher thermally efficient Pumpe Dusse engines that VW had instead of common rail.

Pumpe dusse really strong engines and remarkable real world economy. Common rail much weaker all round.
Probably the same reasons that VW dropped the Pump Duse engines and started doing Common Rail instead.

The CR is generally quieter and a slightly better fuel economy than the PD.

I'd guess the CR is better on emissions as they can control the injection timing, allowing you to completely change the engines operation when it's being tested for emissions which I doubt you can do on a PD biggrin

talksthetorque

10,815 posts

135 months

Monday 9th December 2019
quotequote all
Clockwork Cupcake said:
No. Relativity is a bit odd like that.

For example, if you are travelling at lightspeed and turn your headlights on, the light from your headlights will leave you at the speed of light. The rules we are used to in normality don't apply and it feels counter-intuitive. And Quantum Physics is even more crazy.

I did degree level Physics and it still bent my mind. silly
This would mean that the lights from your headlights when you're on the B2362 at 60 mph is travelling 60mph faster than the speed of light. Is that correct?
I gave up after A levels.


What happens when you throw a torch when you are in an aeroplane on an escalator?
biggrin

SCEtoAUX

4,119 posts

81 months

Monday 9th December 2019
quotequote all
talksthetorque said:
Clockwork Cupcake said:
No. Relativity is a bit odd like that.

For example, if you are travelling at lightspeed and turn your headlights on, the light from your headlights will leave you at the speed of light. The rules we are used to in normality don't apply and it feels counter-intuitive. And Quantum Physics is even more crazy.

I did degree level Physics and it still bent my mind. silly
This would mean that the lights from your headlights when you're on the B2362 at 60 mph is travelling 60mph faster than the speed of light. Is that correct?
I gave up after A levels.


What happens when you throw a torch when you are in an aeroplane on an escalator?
biggrin
Nope, the light from your headlights is travelling at the speed of light, same deal with the torch.

It's counter-intuitive but it's right.

SpeckledJim

31,608 posts

253 months

Monday 9th December 2019
quotequote all
talksthetorque said:
Clockwork Cupcake said:
No. Relativity is a bit odd like that.

For example, if you are travelling at lightspeed and turn your headlights on, the light from your headlights will leave you at the speed of light. The rules we are used to in normality don't apply and it feels counter-intuitive. And Quantum Physics is even more crazy.

I did degree level Physics and it still bent my mind. silly
This would mean that the lights from your headlights when you're on the B2362 at 60 mph is travelling 60mph faster than the speed of light. Is that correct?
I gave up after A levels.


What happens when you throw a torch when you are in an aeroplane on an escalator?
biggrin
Don't forget when you're doing 60mph on the M4, you're also doing 1,060mph or 940mph (!) around the centre of the Earth.

You're also doing an impressive 67,000 mph around the sun.

Which is going god-knows how fast around the centre of the Milky Way.

Which is going...


Speed is a toughie.

Clockwork Cupcake

74,509 posts

272 months

Monday 9th December 2019
quotequote all
SpeckledJim said:
Speed is a toughie.
From a certain point of view. wink

(As in, Inertial Frames of Reference)

ElectricSoup

8,202 posts

151 months

Monday 9th December 2019
quotequote all
SpeckledJim said:
talksthetorque said:
Clockwork Cupcake said:
No. Relativity is a bit odd like that.

For example, if you are travelling at lightspeed and turn your headlights on, the light from your headlights will leave you at the speed of light. The rules we are used to in normality don't apply and it feels counter-intuitive. And Quantum Physics is even more crazy.

I did degree level Physics and it still bent my mind. silly
This would mean that the lights from your headlights when you're on the B2362 at 60 mph is travelling 60mph faster than the speed of light. Is that correct?
I gave up after A levels.


What happens when you throw a torch when you are in an aeroplane on an escalator?
biggrin
Don't forget when you're doing 60mph on the M4, you're also doing 1,060mph or 940mph (!) around the centre of the Earth.

You're also doing an impressive 67,000 mph around the sun.

Which is going god-knows how fast around the centre of the Milky Way.

Which is going...


Speed is a toughie.
Just remember that you're standing on a planet that's evolving,
And revolving at 900 miles an hour...

Exige77

6,518 posts

191 months

Monday 9th December 2019
quotequote all
ElectricSoup said:
SpeckledJim said:
talksthetorque said:
Clockwork Cupcake said:
No. Relativity is a bit odd like that.

For example, if you are travelling at lightspeed and turn your headlights on, the light from your headlights will leave you at the speed of light. The rules we are used to in normality don't apply and it feels counter-intuitive. And Quantum Physics is even more crazy.

I did degree level Physics and it still bent my mind. silly
This would mean that the lights from your headlights when you're on the B2362 at 60 mph is travelling 60mph faster than the speed of light. Is that correct?
I gave up after A levels.


What happens when you throw a torch when you are in an aeroplane on an escalator?
biggrin
Don't forget when you're doing 60mph on the M4, you're also doing 1,060mph or 940mph (!) around the centre of the Earth.

You're also doing an impressive 67,000 mph around the sun.

Which is going god-knows how fast around the centre of the Milky Way.

Which is going...


Speed is a toughie.
Just remember that you're standing on a planet that's evolving,
And revolving at 900 miles an hour...
Look on the bright side !!
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