recovery systems

today we played with parachutes. madeira, taryn and i each made our own parachute. taryn's bag was cut in half so it was smaller and had a hole at the top. madeira's bag didn't have a hole at the top and it broke. mine had 4 strings and a hole. the hairdryer kind of burnt it so we went to the stairs. it went pretty smooth but then one of the strings broke and it flew much softer.

law o gravity

F=MA

africa scores

motion detector lab

so today we played around with motion detectors. it was kind of hard because when you where triyng to match your speed to a line on the graph, it got really jiggly whenever you made the smallest move. i thought it was interesting when you had the three graphs for one motion because the first graph was a really smooth slope but the third graph was really jagged. and whenever you walked backward the line went up but if you started in the back and walked forward the line went down. and when you were trying to move really slow it was still jagged which i found odd.

Africa scores

mechanics lab

yesterday my group, anja, kathryn and me had to put together little lego machines using IM. it was really confusing, especially when kathryn left. bert said we could use video chat which made it a LOT easier because we could see what each of us where doing. anja had this really weird shape thing even though mine was really simple. i think it was really fun trying to put things together on im and we got 3 of them done.