Klunk,+Alexander

Motion detectors In this articleI learned a lot of new things. I learned that the motion sensor can be triggered by infra radiation. I also learned that the device may send out pulses that trigger the reflection pattern to change. I never knew motion sensors saw lights capacity pushing around the electrons! Thats crazy. .I also knew somethings. Some things I knew were that when the light source from the motion sensor to the sensor is blocked thats when the light would turn on. I also knew that a high beam of red would cause no electrons but i knew high intensity blue lights would send the electrons everywhere. One more thing I learned was that light can behave like a particle not a wave like it usually does.

Alex, Light actually acts like a particle and a wave. Watch your sentence structure. 5 stars. MW

Diet coke and mentos I read the article diet coke and mentos. I knew many things about this already but I knew that there was more to learn. There are three things that can get rid of the carbon dioxide in the soda. One thing is that the CO2 in the soda can dissolve in a liter of soda but it all depends on the pressure pushing down on the solutions surface. Another thing that helps get rid of the sodas fizz is the temperature. The higher the temperature the higher the soda will lose its fizz. The last way the soda can lose its fizz is through nucleation sites which are small uneven surfaces which give the carbon dioxide an area to attach to. The soda companies know about this and make the soda bottles a smooth surface so no carbon dioxide particles will bubble.

Alexander, You mentioned three things that you learned but should have also posted about three things that you already knew. 4 stars. MW

Post for video on 9-19-2011 I did not know that oil is so complex I never really new that it was a mixture. I had always thought we got oil right out of the ocean or land and put it right into the barrels. After I saw this I learned how long of a process they have to go through to get it to the consumers. I guess these complex processes also tie into many other things in the world helping us get through life easier Even though liquids condense at different temperatures I never knew that the distillation in crude oil starts around 47 degrees Celsius. I found interesting that such complicated mixtures can be distilled in such an easy way just like how we did it in class today. This relates to class because it goes through a process like we did in class. Crude oil goes through the distillation process.

Alex, OK. Looks like you connected with the concept of distillation. 5 stars. MW