When an object is travailing at speed towards you there is an effect called Doppler Effect colour shift this states that as an object travels towards you it looks bluer as it travels away from you it looks redder
So as you see a bike in your mirrors it will shift to a bluer colour. As It passes and laves you behind it will look redder there fore red is the fastest colour
I see myself as a sensitive intelligent man but with the heart of a clown that causes me to **ck things up right at that crucial moment........'Jim Morrison'
Red is in the lower end of the visible spectrum and has a longer wave length then blue
Think of a bike travelling towards you and the sound it makes then as it passes you and travels away the note you hear drops that’s Doppler Effect the sound wave is compressed as it travels towards you and is stretched out as it travels away from you. You only hear the true sound of the bike when it’s right along side you
Hmm!
Should we really be talking about Gay colours and whipping A$$ in the same post???
Maybe we should lock this post down and start talking more manly Stuff
Pete.l
My new ride is a bit of a Howler and I love to make her Squeal
can i point out some science here...seems like a few people are rather muddled....
the Doppler effect is the bending of a wave from its source relative to the position that its viewed from or around an object. It is not just the wavelength that is altered but also the amplitude, frequency and a million other factors.
Due to pressure and the nature of the environment your viewing the colour in (in this case, earth, thus gravity is a major player) the spectrum does not change but shifts. Thus it will not change colour, simply hue as the spectrum shifts left of right thus altering the RGB content our eyes receive.
Normally the Doppler effect is used in conjunction with sound waves and not light waves due to the speed of light making most Doppler changes invisible to the naked eye. Sound waves however are much more noticeable.
EG: your exhaust note will change pitch depending on what direction the noise is coming from. Whilst this happens with lightwaves the effects are, for most part, unseen!
Squiffy_The_Wombat
Eagles may soar but wombats dont get sucked into jet engines!!
Squiffythewombat wrote:can i point out some science here...seems like a few people are rather muddled....
the Doppler effect is the bending of a wave from its source relative to the position that its viewed from or around an object. It is not just the wavelength that is altered but also the amplitude, frequency and a million other factors.
Due to pressure and the nature of the environment your viewing the colour in (in this case, earth, thus gravity is a major player) the spectrum does not change but shifts. Thus it will not change colour, simply hue as the spectrum shifts left of right thus altering the RGB content our eyes receive.
Normally the Doppler effect is used in conjunction with sound waves and not light waves due to the speed of light making most Doppler changes invisible to the naked eye. Sound waves however are much more noticeable.
EG: your exhaust note will change pitch depending on what direction the noise is coming from. Whilst this happens with lightwaves the effects are, for most part, unseen!
Yeah that's just what Timbo and I said Black is fastest.
I was born with nothing and I still have most of it left.
Seeing as you appear to be using Snell's Law to validate your flawed belief that red is fastest.
It would be, but only if you're riding through glass or underwater.
Consequently, in order to determine which colour is fastest, we must account for several things.
The amount and wavelength of light absorbed produces the remaining reflected visible colour. This shows black is slowest as it absorbs the whole spectrum leading to becoming heavier and thus slower. Red, Yellow, Blue absorb all but one wavelength so are also very heavy. Being bombarded by 300,000,000 meters per second of light and absorbing all that energy leads to slowness. A highly reflective colour is more slippery and reflects the harmful slowing light.
Thermodynamics also play a part. With black absorbing the most heat the fastest, it expands due to heat quicker than anything else, so presents a larger area and is slower due to drag. Riders of primary colours negate the advantage they have by spouting hot air and wearing drag.
We can show this mathematically using the magic number: 3.14159265
Rider + Pie = slower. Black, Red, Blue and Yellow riders are known to be genetically predisposed to be tubby munchers.
This conclusively prove that the fastest colour is in fact Silver.
Voted most likely to be found dead in park bushes following an act of autoerotic asphyxiation.
Timbo wrote:The X-43A, part of NASA's Hypersonic or Hyper-X program, is designed to fly to speeds up to Mach 10, making it the fastest, non-rocket, air-breathing powered plane in the world. The SR71 is the fastest measured New York to London.
But by pure coincidence, both are BLACK
Stormin Ben wrote:Fastest plane in the world?
SR-71
Colour of fastest plane in the world?
Black
So? whats that got to do with the price of fish?
Its well known that the SR71 is black purely because of the colours thermal properties and if it were silver, it would be faster but wouldn't be as heat stable. Cruising at Mach 3.2 generates a wee bit of warm.
Silver is also fastest as its the lightest. The millionths of a microgram weigth saving makes all the difference. Anodizing things silver can even make previously slow stuff fast, according to Demon Tweeks.
The extra paint thickness required to make Black, Red, Blue and Yellow according to a bloke in the pub (which is therefore undeniable scientific proof) is worth a whole second on a quarter mile run.
Voted most likely to be found dead in park bushes following an act of autoerotic asphyxiation.
