Tag Archives: wavelength

The Pink Debate

“Visible light” corresponds to a wavelength of 400 – 700 nanometers or 10-07 meters.  The visible colors from shortest to longest wavelength are: violet, blue, green, yellow, orange, and red.  You’ll notice that the color pink doesn’t appear anywhere on that list. Recently, there has been debate as to whether or not the color pink [...]

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(M) 59 (& M60)

M59 & M60, which are also known as Messier 59 and Messier 60, are two of four galaxies observed in the Virgo cluster.  Billions (10+12) of stars are in both elliptical galaxies – which are estimated to be about 55 – 60 million light years away (10+23) while the asteroids observed are in our solar [...]

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73 (in Ham Radio)

According to ARRL (National Association of Amateur Radio), 73 is known as a “friendly word between operators”.  Because Ham Radio (also known as Amateur Radio) is wireless, the operators are more than just enthusiasts. At local levels (10+3), they offer vital assistance during disasters.  “For instance, it was the Amateur Radio Service which kept New [...]

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  • Countdown to Powers of Ten Day

    • 10/10/10 1532 days ago