Walker,+Victoria

"Trick Candles" 1/23

While reading this article you will see that the use of trick candles is both amusing and a little dangerous. Though it is funny to watch someone struggle to blow out their candles, some people forget to take care of them when they are done. There have been some cases when they just throw them in the trash and the next thing they know their trash is a flame. The candles are more then just magic they have chemicals in them that let them stay lit, for example they use magnesium powder. So the next time you are at a birthday party you can thank the magnesium for that spark in the party.

Victoria, Good job! I like your writing style. 5 stars! BTW Don't edit the home page - put all of your posts here. :)

"Redefining The Kilogram" 2/8

When I was reading this article I found the fact that there are seven different System of Units interesting. I knew about mass (kilogram), length (meter), time (second), and temperature (kelvin), but I was unaware of electric current (ampere), amount of substance (mole), and light intensity (candela). Though I knew they measured such things, I never truly knew with what. Something else that I found amazing was that the kilogram is the last SI that still is defined by the physical artifact. Also I found the part about "The Kilogram" has lost 50 micrograms. I find to crazy to believe that it has changed and no one has done anything to it. So now make sure if you want it to be the symbol for all, make sure it's right! P.S. Sorry about putting it on the wrong page, I learned where to put it now!

Victoria, No problem. Good post! Very thorough. I guess they'll take care of that lost mass thing once and for all! 5 stars. MW

"Motion Detector" 2/25

During the time you read the article you will see that there are three different methods that are used by motion detectors. I was fully aware of infrared, but never given much thought to the light source way or the way that sends out pulses. Something else that I found interesting while reading "Motion Detectors" was when you see that automatic open door at the market, that's due to motion detectors, and so is that noise when you walk through the door to let the shopkeeper you are there. The one I thought was a little bit more important was the one with the garage door, this has saved me countless times. Another fact I found amusing was the fact that the human eye is like a photo sensor. With it acting like this, it gives us vision. So the next time you try to sneak out make sure you don't go by the sensor!

Tori, Funny! I like the way you mentioned that the eye is like a photo sensor. Much more complicated than a motion detector though! 5 stars. MW