nanotechnology based water and dirt repellent windscreen
04-23-2004, 11:26 PM
#5
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Eagle 1 had some ad in R&T for their car care products featuring nanotechnology...
I will admit that the ad was very convincing even without any actual evidence on their part. They had a diagram to make me fall for it and everything. Whether it's good or not, I do not know.
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04-25-2004, 03:12 AM
#10
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None. It's BS...
The "nano" in "nanotechnology" is the ISO prefix for 10^(-9). Nanotechnology, by definition, is technology at the scale of 1x10^(-9) meters (a nanometer).
These are small sizes, the size of small molecules. Atoms are about 0.1 nanometers across.
To the point at hand - a car wax is supposed to make you car shine. The marketing claim is that nanowax does this better by smoothing out smaller imperfections. The fallacy is that the wavelength of visible light is on the order of 500 nanometers, vastly longer than these imperfections that nanowax is supposed to fill. Very high quality optics (professional telescopes, for example) are shaped properly to within about 1/20 wave (30 nm) and may be finished to a surface roughness in the nanometer range.
Do you think you can find an astronomer who would believe the marketing and let you rub nanowax on their optics using a "microfiber" cloth applicator?
These are small sizes, the size of small molecules. Atoms are about 0.1 nanometers across.
To the point at hand - a car wax is supposed to make you car shine. The marketing claim is that nanowax does this better by smoothing out smaller imperfections. The fallacy is that the wavelength of visible light is on the order of 500 nanometers, vastly longer than these imperfections that nanowax is supposed to fill. Very high quality optics (professional telescopes, for example) are shaped properly to within about 1/20 wave (30 nm) and may be finished to a surface roughness in the nanometer range.
Do you think you can find an astronomer who would believe the marketing and let you rub nanowax on their optics using a "microfiber" cloth applicator?