What is blacklight? Since it is time to start heading back to school, I thought I would take you readers to the dreaded "S" word, as my 10 year old nephew likes to call it, and give you the scientific defination of blacklight.
We all know of UV rays from the sun, and how normal looking objects can sometimes glow under light of certain wavelengths. The definition of Ultraviolet (blacklight), according to Wikipedia is
Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than X-rays. It is named because the spectrum consists of refrangible electromagnetic waves with frequencies higher than those that humans identify as the color violet.
If you really want to read more about UV light you can go to Wikipedia and read about it. (Whew! That's a mouthful)
That's enough school for me! Blacklight is cool and does some cool things and makes things look really cool. If it wasn't, then why would anyone devote so much time to it. As I said it is cool, and you can do some really cool things with it, illuminate posters, find scorpions, use it in forensics, fraud detection, all kinds of stuff. If you want to wow your friends, take an ordinary credit card, expose it to blacklight, and see what is actually on those plain looking cards. Try it with money as well. Do you want to see if your bathroom is really clean? Take a blacklight and shine it around in there. You may be amazed at what you see! (This is not recommended for the faint of heart)
If you have some other cool things you have done with blacklight, we would love to know about it. Email me your pictures and descriptions.
Have a great weekend, and I will talk to you next week.
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