Step 1: get donations or buy 20-30 concrete stepping stones (2" or so thick, round or square, very flat) and a gross or 2 of Dixie cups. Report weight of each stone.
Step 2: on a very level base (check it), chalk an outline of the stones. Arrange 9 or 16 cups in even spacing. Place a stone flat on the cups.
Step 3: repeat to see how high a stack can be made before collapsing.
Step 4: Video tape as stack builds - ideally with 2 cameras, one showing overall scene and one showing bottom 3 layers.
Step 5: Post video to UTube
Question: Does the tower tip significanly to one side or fall basically straight down?
Build another tower, but stop a layer or two before it collapses. Use a rod to punch out cups 25% of the way down from the top until the top starts to fall. Record falling pattern, does building fall straight down. This simulates fall of Buildings 1 & 2 of World Trade center. (Optional: place a bit of flour on each layer and paper sides to show blow out.)
2007-07-17
14:07:36
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1 answers
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asked by
Mike1942f
7
in
Other - Science