Zellam,+Tara

Steelers for the win! Yes!! MW

Article 1, Tattoo Ink In this article, I as actually a bit stunned to see that not much in known about the contents of ink. This will lead me to do some research on this on my own time. As tattooing is one of my primary choices for a career, this article truly jumped out at me. The parts about some pigments, however, were no shock to me. Copper being used for blues, carbon being used for black, really no shock there, especially since I am personally used to looking up element make-up of gems. The idea of removable tattoo ink is a good revelation, but also a risky one. By making tattoos "removable", many people may get ones just for the sake of having them removed. It would be the same as dyeing you hair over and over again, in my opinion.

Tara, Well I suppose it would make getting a tattoo less of a "big decision" if you could easily remove it. I wonder what % of people regret getting tattoos. Anyway good post! I'm curious about your gemstones comment? 5 huge stars! Go Steelers! MW.

Mr. Williams, I agree, if tattoos were designed to be easily removed, the only things that would stop people from getting many would be needles and pain. About the gemstone comment, I actually collect gemstones. I'm not as much into it now as I was a year ago, but I still enjoy being able to identify gems.

Motion Detectors: All sorts of motion detectors are out there, and each can run on a different system of detection. Using light that we can not see from the spectrum, most people many not even think about the possibility of a motion detector until it is too late. Some use a break in a wave of light, pulses that change a pattern of reflection, or even sensing a change in infrared radiation. The first of those is extremely common in guarding the contents in museums, while the second is common in police radar guns.

Tara, Oh yes the radar guns! Used to determine the speed of a baseball too! 5 stars. MW

Redefining The Kilogram: This article explains about the standard units of measurement, with the kilogram being the last unit still defined by a physical object. I find it rather funny how there would be such a big deal over a little lost weight. Granted, it is THE kilogram, but as said in the article, it's the last physical standard. I was rather intreged when I read that there are 7 different units in the International System of Units. Could always be a good bit of trivia to know.