MIRAGE QUIZ/BLOG

So basically, the mirage device is basically made of two concave mirrors with each other's focal points in the center of the other mirror. So if an object, like a strawberry for example, is placed in the center of the bottom concave mirror(which is the focus), light rays bouncing off the strawberry will hit the top concave mirror and then bounce off parallel to the axis. These parallel light rays then bounce off the bottom mirror, and when parallel rays bounce off a concave mirror they all intersect at the focal point, which is at the top of the mirage device. Therefore this device produces a "mirage" at the top due to the use of physics, mirrors, and focal points. What goal does this accomplish? You can trick your friends out by putting money inside the mirage device and leaving it on a table.

FUN IN THE PHYSICS ROOM

Last week during Period 8, one of Doc's favorite periods, we were spinning some rulers on a gatorade bottle. We thought it was cool because the ruler could turn all the way around without falling over. In order to make sure the ruler wouldn't fall over as soon as we put it on, we had to make sure the center of mass was placed over the fulcrum which was the gatorade cap. After that, we applied a force to cause the ruler to spin. Due to friction between the cap and the ruler, it did not go as fast or as steady as we had hoped. For funsies, we decided to put a second ruler on top, just to see what would happen. We tried spinning them in different directions , as well as in the same direction, but found no luck either way. The set up of our experiment reminded me of a helicopter, something that uses a lot of physics in order to work. Thanks DOC.