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How to build a machine that produces the highest frequency!
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<blockquote data-quote="Harte" data-source="post: 29366" data-attributes="member: 443"><p><strong>Re: How to build a machine that produces the highest frequency!</strong></p><p></p><p><div class='quotetop'>QUOTE(\"fanavans\")</div></p><p> </p><p>Fanavans,</p><p>It depends on what you mean by "light". Light is electromagnetic radiation like radiowaves or microwaves. If you mean this kind of light, then I think the highest electromagnetic frequency would be that of <a href="http://csep10.phys.utk.edu/astr162/lect/light/spectrum.html" target="_blank">gamma rays</a>, which are, I believe, any radiation with a frequency higher than 3*10^19, or 300,00,000,000,000,000,000 cycles per second (Hz.)</p><p> </p><p>If you mean visible light, then deep blue(on the verge of ultraviolet) would be the highest, since ultraviolet light is invisible to our eyes.</p><p> </p><p>Remember the relation between frequency, wavelength and speed I spoke of earlier (c=f*L)? We know c is constant, so effectively this says that the wavelength is inversely proportional to the frequency (and vice-versa.) This is interesting when you consider that, with electromagnetic waves, there is a lower limit (theoretically) to how small L can be, and thus how large f can be.</p><p> </p><p>The shortest length that can be meaningfully measured is the <a href="http://www.site.uottawa.ca:4321/astronomy/index.html#Plancklength" target="_blank">Planck length</a>, about 1.6*10^-35, or 0.(34 zeros)16. At this size, normal understanding of spacetime breaks down. So probably this is the size of the shortest wavelength you can ever hope to generate.</p><p> </p><p>Given this information, you can plug the Planck length and the speed of light into the above equation to obtain the highest (electromagnetic) frequency that you can ever hope to obtain.</p><p> </p><p>I must say that the mere calculation of this frequency in no way brings you any closer to generating a wave of this frequency. And that's probably a good thing, since the effect of the wave on your person would, to say the least, not be very good. The amount of energy involved in generating a wave with these properties is enormous, but that's another question.</p><p> </p><p>Harte</p></blockquote><p></p>
[QUOTE="Harte, post: 29366, member: 443"] [b]Re: How to build a machine that produces the highest frequency![/b] <div class='quotetop'>QUOTE(\"fanavans\")</div> Fanavans, It depends on what you mean by "light". Light is electromagnetic radiation like radiowaves or microwaves. If you mean this kind of light, then I think the highest electromagnetic frequency would be that of [url=http://csep10.phys.utk.edu/astr162/lect/light/spectrum.html]gamma rays[/url], which are, I believe, any radiation with a frequency higher than 3*10^19, or 300,00,000,000,000,000,000 cycles per second (Hz.) If you mean visible light, then deep blue(on the verge of ultraviolet) would be the highest, since ultraviolet light is invisible to our eyes. Remember the relation between frequency, wavelength and speed I spoke of earlier (c=f*L)? We know c is constant, so effectively this says that the wavelength is inversely proportional to the frequency (and vice-versa.) This is interesting when you consider that, with electromagnetic waves, there is a lower limit (theoretically) to how small L can be, and thus how large f can be. The shortest length that can be meaningfully measured is the [url=http://www.site.uottawa.ca:4321/astronomy/index.html#Plancklength]Planck length[/url], about 1.6*10^-35, or 0.(34 zeros)16. At this size, normal understanding of spacetime breaks down. So probably this is the size of the shortest wavelength you can ever hope to generate. Given this information, you can plug the Planck length and the speed of light into the above equation to obtain the highest (electromagnetic) frequency that you can ever hope to obtain. I must say that the mere calculation of this frequency in no way brings you any closer to generating a wave of this frequency. And that's probably a good thing, since the effect of the wave on your person would, to say the least, not be very good. The amount of energy involved in generating a wave with these properties is enormous, but that's another question. Harte [/QUOTE]
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