really silly question

[cpikey316_]

is this an inside or outside kinda sticker?

http://www.cafepress.co.uk/mf/15501622/i...d=84583189

[WiNgNuTz]

Looks like an external sticker to me.

[cpikey316_]

Super super quick! Thank you!

Been looking for a uk version for ages....

[WiNgNuTz]

Yeah, well y'know....social lives are for losers.

[Toms306]

I don't get it...

[WiNgNuTz]

What, the sticker or the social life?

[Toms306]

Well both in all honesty!

But the sticker's red...

[zx_volcane]

But the sticker's red...

doppler blueshift innit

/science

[cpikey316_]

http://www.bbc.co.uk/schools/gcsebitesiz...rev3.shtml

Basically, if you move quickly towards a source of light, the waves become slightly compressed, this decreases the wavelength and the light looks slightly blue. I think a calculation suggested you'd have to be doing 40% the speed of light for it to happen though.

Its like the dopper effect, but with light waves instead.

[Kezzieboy]

Epic sticker is epic!

[WiNgNuTz]

Ok, so now im feeling a bit thick. Thanks Chris.

[Ben Jay]

[Toms306]

http://www.bbc.co.uk/schools/gcsebitesiz...rev3.shtml

Basically, if you move quickly towards a source of light, the waves become slightly compressed, this decreases the wavelength and the light looks slightly blue. I think a calculation suggested you'd have to be doing 40% the speed of light for it to happen though.

Its like the dopper effect, but with light waves instead.

Oh I see, that's pretty cool tbh then! But surely it'll never 'work' if you have to be that fast?

[Nadine]

im wondering how many people will actually get that, i didnt and like wingnutz i feel slightly thick lol

[cpikey316_]

im wondering how many people will actually get that, i didnt and like wingnutz i feel slightly thick lol

Think about an ambulance coming towards you with its sirens on, then the sound changes as it passes you.

When its approaching you, the waves are squashed together, the wavelength is shorter, making the frequency higher.

As it passes you and moves away, the waves are more spread out, making the frequency lower

Java thingy!

http://www.colorado.edu/physics/2000/app...ppler.html

---

Oh I see, that's pretty cool tbh then! But surely it'll never 'work' if you have to be that fast?

You'd need a least a stage 2 HDi , with cyclones and a 40mm drop to get to 40% the speed of light.....

[Nadine]

im wondering how many people will actually get that, i didnt and like wingnutz i feel slightly thick lol

Think about an ambulance coming towards you with its sirens on, then the sound changes as it passes you.

When its approaching you, the waves are squashed together, the wavelength is shorter, making the frequency higher.

As it passes you and moves away, the waves are more spread out, making the frequency lower

Java thingy!

http://www.colorado.edu/physics/2000/app...ppler.html

---

Oh I see, that's pretty cool tbh then! But surely it'll never 'work' if you have to be that fast?

You'd need a least a stage 2 HDi , with cyclones and a 40mm drop to get to 40% the speed of light.....

haha i got it after it was explained with all the science words lol. Science was never a strong point with me

[WiNgNuTz]

Think about an ambulance coming towards you with its sirens on, then the sound changes as it passes you.

When its approaching you, the waves are squashed together, the wavelength is shorter, making the frequency higher.

As it passes you and moves away, the waves are more spread out, making the frequency lower

Java thingy!

http://www.colorado.edu/physics/2000/app...ppler.html

I got that bit, I remember that from school, and often recall it as an ambulance or similar shoot past, but I didnt realise the same theory applied to light!

Also, surely you'd need more of a 60mm drop to achieve 40% of the speed of light?

[Tom]

So its a nerdy funny sticker? I guess thats cool.

[cpikey316_]

So its a nerdy funny sticker? I guess thats cool.

My colleagues will love it!

[Matt]

That is awesome!! Haha

[Poodle]

So its a nerdy funny sticker? I guess thats cool.

Exactly. I believe it's called "geek-chic"

[Ruan]

You'd need a least a stage 2 HDi , with cyclones and a 40mm drop to get to 40% the speed of light.....

Well 40mm lower is 40% lower which equals 40% faster.

Right guise?

[cpikey316_]

You'd need a least a stage 2 HDi , with cyclones and a 40mm drop to get to 40% the speed of light.....

Well 40mm lower is 40% lower which equals 40% faster.

Right guise?

Ah,its all falling into place! You can't go 100% lower, for the simple reason that it would mean you could reach the speed of light, which isn't allowed!