Viscosity

Viscocity: Maple and Honey Syrup

If you have ever heard someone say "your as slow as molasses" they are saying you are very slow. Viscosity is a fluids resistance to flow. Usually people think of viscosity as "thickness". For example, moving a straw through a cup of water is easy, but a cup of syrup would be harder. Because of the resistance of the syrup, the straw might bend and not move as fast. 

Another variable would be the type of syrup you used. Let's say you used maple syrup versus honey syrup. The maple syrup would have a higher viscosity than the honey. 

Normally when the temperature increases the viscosity decreases. For example, if your pour syrup hot it will flow easier. But if you pour it straight out of the refrigerator, it will pour slower.

Maple Syrup

Honey Syrup

Cites:

•Honey Syrup Pic:

http://www.diytrade.com/china/pd/7310643/Honey_Syrup.html

•Maple Syrup Pic:

http://www.bradsorganic.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=BO&Category_Code=MAPLE

•http://www.sciencedaily.com/articles/v/viscosity.htm

•http://science.howstuffworks.com/dictionary/chemistry-terms/viscosity-info.htm

Glass Art

Glass Art

      Glass art sculpture happened hundreds or thousands of years. There are different types of glass sculpting. The two types I'm going to talk about is glass blowing and hot sculpting. In glass blowing you use sand and soda lime, with color agents (food coloring), to produce a raw material, which will be melted together to from molten glass. This glass is gathered from the furnace onto a blowpipe. Glassblowers use air blown into the pipe combined with movements of the glass, to quickly shape the molten glass before it cools. Once it is shaped, the sculpture is placed in an annealing oven to cool down the glass until it is stable. If it cools too quickly the glass art may break or crack. 

http://www.cmt.com/pictures/dollywoods-25th-anniversary/1644736/5078687/photo.jhtm

      The second type is hot sculpting. This  is used when a solid metal rod gathers the molten glass from the furnace and it is shaped with the tools. While the process is similar to blown glass, no one blows to make the shape. Hot sculpting is more popular in the U.S.

 

http://blogs.bgsu.edu/glass/

Friday, January 10, 2014

Treat all jobs with Equal Respect

Wildlife Overpopulation Management

      Wildlife overpopulation management is the science of reaching goals by manipulating and/or maintaining the habitats and populations of wildlife. You should know the population trends and the interaction of your species, before you try to take the animal away from its natural habitat. When deers are hit by trains, people do accept it. No one believes we should get rid of railroads and trains because they hit a deer every once and a while. Another example, would be if a hunter accidentally shoots a bird or hen. But, just because of one mistake, people don't stop hunting. Sometimes, landowners make individual population management choices, when they should think about the whole population and it's effects/reaction.

      When a population gets too big, you have to either slow down the reproduction rate or take out a percentage of the population. As example, deer season gives hunters allotted time to hunt and kill deer because of the overpopulation. But, when an animal is endangered hunters are not allowed to kill them. When an animal is endangered, people shelter them because they need to keep the species living. Here is an article stating the fines for breaking the law for endangered animals. 

http://www.gc.noaa.gov/documents/gces/6-ESA/esa_1208.pdf

Citing my sources: 

http://m.humanesociety.org/issues/wildlife_overpopulation/#.UswioH-9KSM

http://wamu.org/news/11/05/23/deer_overpopulation_yields_disastrous_results_for_forests.php

Pictures:

http://www.swf-wc.usace.army.mil/georgetown/deermgt.asp

http://www.flickr.com/photos/sathishcj/94566801/