EMMA LOWE GT 2014-2015
9/19/14 Building Cameras:
Today, we are building cameras with the Bigshot Camera kit. Before we started, we had to take a few notes. (Example Below)
-In a display of a liquid crystal, there are 2 horizontal polarizers, one in the back and front. Between the two are electrodes and liquid crystals.
- When the liquid crystals rotate 90 degrees, the polarization of light has no voltage.
-Vertically polarized light is blocked by the horizontal polarizer and we see a dark pixel.
-Each pixel is divided into smaller sub-pixels that are covered with red, blue, and green filters.
- Instead of seeing 3 color pixels, red blue and green, we see a combination of them.
- All the colors we see are produced with different combinations of red, blue and green.
We went around the school taking pictures with our camera. When we got back, I got to edit one of the pictures I took.
1. We watched a video about preventing runoffs. I took a few notes. (Below)
-Storm runoff is how lots of pollution gets to water
-Storm runoff comes from everywhere
-Plants adsorb pollution
-Gravel lets water flow easily
-Vegetated Swales are sloped down to one side and filters the water
-Catch basins get pollution and gives water back to plants and rivers
-Slopes help filter water through plants
-Plants "eat" pollution
We had a foil model city. Then, we polluted it with a tablespoon of food coloring representing oil, a tablespoon of sequins representing trash, a teaspoon of dish soap representing chemicals, and a teaspoon of sprinkles representing animal droppings. We then sprayed it with water representing rain. All the pollution got into the river. It was not a pretty sight.
2. We also made a greenroof. A greenroof is a roof with plants and different soils that absorb water so it doesn't run off. A greenroof is also a lot cooler than normal roofs. We made our greenroof with about 4 layers of cards on the sides of the first 2 floors one at a time. In between those 2 floors we had the index cards in an x shape to support the inside foundation. On the third floor, Molly and I folded the price of foil up into a little pocket about the size as the area of the building. We put moss, paper bits, dirt, and sand in the foil pouch. Last, but not least, we stacked the floors all together and added tape on the sides. It was time to see if it would hold the water.
It did! The water did not leak through the tower. The pouch, soil, and paper held all the water.
3. Our next activity was making a road to soak in water after 20 sprays and have a wind-up toy walk across it in a straight line. We had a budget of 200 dollars. My group's idea was to have one piece of crafting foam at the bottom, a piece of felt on top, and some more foam on top with