Colour, Light, Frequency, scientific advice please

[UKBob]

Which colour vibrates at a higher frequency on the spectrum? Id like to think yellow is faster than blue, some ammo to take back to the TVR forums

[Balmoral Green]

I think I know where you might be going with this some colours are faster than others, and there are always go faster stripes too.

[ninjadave]

Blue is faster than yellow I'm afraid. Red is the slowest, which - given my car - is unfortunate.

[UKBob]

ninjadave said:

Blue is faster than yellow I'm afraid. Red is the slowest, which - given my car - is unfortunate.

Someone will have to second that, and if it turns out you're right then as we all know its whats under the bonnet that counts, not the bloody paint job

[v8nrg]

said:

Blue is faster than yellow I'm afraid.

I second that !

i passed a yellow metro this moring, in my blue Chim.

I thought everyone new blue ones are faster !

[UKBob]

What are the chances of ted deleting this thread for me, before word gets back to the cerbera forum, considering that erm, Ted has a blue Cerbera?

If he's not egotistical, then to keep the peace naturally he will

[Butzi]

Actually, blue side of the spectrum vibrate faster, ie higher frequency, but the speed of light is the same no matter what colour it is, unless it's Polar silver, then its twice the speed of light!

[Le TVR]

ninjadave said:

Blue is faster than yellow I'm afraid. Red is the slowest, which - given my car - is unfortunate.

The speed is constant. It is the frequency that is different.
The frequency and resulting wavelength of each colour is from red (740nm) to violet (380nm).

Add a little doppler shift and there is always the possibility of a red car disappearing (visually) as it drives away from you (red shift out of visible spectrum). Maybe Enzo was on to something

[UKBob]

Le TVR said:

The speed is constant. It is the frequency that is different.

Im satisfied with that response

[Neil_H]

Black is the fastest then as technically it isn't even a colour!!!

[jonnie5]

Neil_H said:

Black is the fastest then as technically it isn't even a colour!!!

Agreed

[eharding]

Neil_H said:

Black is the fastest then as technically it isn't even a colour!!!

'Black?................Black?.......Black! You lock me in the cellar and feed me pins!'

[ninjadave]

Le TVR said:

ninjadave said: Blue is faster than yellow I'm afraid. Red is the slowest, which - given my car - is unfortunate. The speed is constant. It is the frequency that is different. The frequency and resulting wavelength of each colour is from red (740nm) to violet (380nm). Add a little doppler shift and there is always the possibility of a red car disappearing (visually) as it drives away from you (red shift out of visible spectrum). Maybe Enzo was on to something

The question was which vibrates the fastest, not which travels the fastest.

Which means yellow is better than blue, as it won't shake itself apart

>> Edited by ninjadave on Wednesday 23 March 10:28

[EmmaP]

'When the eye remains stationary, the image of a moving object will run across the receptors and give rise to velocity signals from the retinas; but when the eyes follow a moving object, the image remains more or less stationary upon the retinas, and so they cannot signal movement, though we still see the movement of the object. If the object is viewed against a fixed background, there will be velocity signals from the background, which now sweeps across the retinas as the eyes follow the moving object: but we still see movement even when there is no visible background...

Colour depends not only on the stimulus wavelengths and intensities, but also on differences of intensity between regions, and whether the patterns are accepted as representing objects.'
Eye and Brain the psychology of seeing, R.L. Gregory.

Possibly one of the best and most fascinating of introductions to the psychology and physiology of perception. It includes detailed histories, analysis and experiments based on seeing, perception of colour, light, movement, illusion and reality as well as the mechanics of the eye and brain.

>> Edited by EmmaP on Wednesday 23 March 17:41

[supraman2954]

Any car which appears red when it actually isn't is going pretty damned quick!
If a car appears blue when it actually isn't, you had better jump out of its way - quickly.

[parrot of doom]

Red Orange Yellow Green Blue Indigo Violet

Red being the longest wavelength.

[Incorrigible]

Le TVR said:

Add a little doppler shift and there is always the possibility of a red car disappearing (visually) as it drives away from you (red shift out of visible spectrum). Maybe Enzo was on to something

If you approach a red traffic light at 0.95c the dDoppler shift will make the light green

The speeding fine is likely to be quite horrendous though

[supraman2954]

Incorrigible said:

The speeding fine is likely to be quite horrendous though

You could contest the fine on the basis that the speed camera must be out of calibration; the time between flashes will appear to be 1.6 seconds, three times the usual delay

Edited cos I was I decided to calculate time dilation factor.



>> Edited by supraman2954 on Wednesday 23 March 15:12

[Le TVR]

supraman2954 said:

Incorrigible said: The speeding fine is likely to be quite horrendous though You could contest the fine on the basis that the speed camera must be out of calibration; the time between flashes will appear to be almost 1 second, double the usual delay

No need to contest anything, at 0,95c you will be in the next galaxy by the time the NIP arrives.

[Balmoral Green]

Le TVR said:

Add a little doppler shift and there is always the possibility of a red car disappearing (visually) as it drives away from you (red shift out of visible spectrum)

So, if I wanted a getaway car for a blag, red would be a good choice, better chance of losing any bib on my tail, they may just miss me taking that sharp left.