Huber,+Lauren

8/3/11 I chose to read an article called "The Makeup of Mineral Makeup" by Jane Andrews. I chose to read this article because I use makeup almost every day so I was interested to learn more about what I'm putting on every morning. One of the hottest trends in the makeup industry is mineral makeup. Because I do use makeup often and purchase it at the store, I was familiar with somethings. This includes the piece of information given that states mineral makeup is marketed as "natural." I knew that this was because it is made up of mineral found in nature. Another thing I already knew was that the chemical used to produce this makeup can irritate sensitive skin. This is common with most makeup. A third thing that I already knew before reading this article was that a common goal of all makeups, especially mineral makeup, is to produce a product that works to hide imperfections which is a process called "coverage." Although I knew a few different things about makeup before reading this article, I also read knew information. Something I didn't know about this type of makeup called mineral make up was that it was originally sold to people in a dermatologists' office such as the laser-treatment patients. I have learned that now, this type of makeup is able to be sold in drug stores. Another thing I learned was that common ingredients in mineral makeup are talc and mica powders. I had never read the ingredient labels before so i hadn't known this. A third thing I learned was that mineral makeups are produced without fragrance or preservatives. The whole time I have been using makeup I have only used one brand so I wasn't sure that others are made fragrance free. I learned a lot. Overall, I had a decent amount of knowledge about makeup but in the end I learned a lot. It was helpful to read an article I was interested in because I was focused on learning more.

Lauren, Looks like you got quite a bit out of this article. Great post! 5 huge stars! MW

8/19/11 From watching this video I learned a lot about oil. So many things we use are made of this. We depend on oil. We would be in bad shape without it. I discovered that we use so much that we have to import some. I didn't realize that oil was made up of a mixture of hydrocarbons. That is just one thing I learned. I also wasn't sure which process of separation was used when separating oil but I found out that the molecules of oil are separated using the process of distillation. Overall, I learned that there are different kinds of distillation. I found this interesting because I wasn't familiar with many of them such as fractional distillation or industrial distillation. I can relate this to class because of discussion we just had. We also witnessed a demonstration of distillation today before watching the video so I found it useful to be able to have an idea of what really goes on when separating oil. Learning things comes easiest to me when I see them happening so that helped.

Lauren, Awesome post! Very thorough and well-written. 5 stars! MW

10/3/11 The article titled "Motion Detectors" was interesting to me. I knew a lot of the information that was provided so this made the article easier to understand in some ways. Something I already knew before reading the article was that there are more methods than just one that are used by motion detectors. This is true because I am around detectors through out my daily life such as garage doors and automatic doors. The article talks about the photoelectric effect which I have read about before. Because of this, I knew that when light of sufficient energy is shined on a given surface, it can cause electrons to be ejected. A third thng that I knew prior to reading the article was that Einstein had a lot to do with the photoelecctric effect considering he was the one who had to explain it to show its link to the dual nature of light. I read about this in our assigned reading for the 5.1 section we're going over. While I did know a lot of what was mentioned in this article, there is always things I learn. Something I realized was the Heinrich Hertz observed the photoelectric effect and the unit for the light frequency is named after him. Although I knew Hertz was the unit for light frequency, I found it interesting to learn about who observed this in order for it to be named that. Another thing I learned was that someone moving outside a window or glass would not register on an indoor motion sensor or on the other side of the glass. This was extremely fascinating to me because I figured that since it's possible to see what's on the other side of the glass, it would be possible for a detector to pick them up. The third thing I learned while reading this article was that some animals like bats use processes such as echolocation as detection methods to locate things such as their pray. In the back of my mind I knew bats could use their senses to this ability but I had no idea it was to this extent so I found this piece of information interesting. The article was a good read and helped me to learn and even understand some things that I didn't know about.

Lauren, Very well done! Good references to prior learning. 5 stars! MW