|MadSci Network: Earth Sciences|
I am doing an A-Level Earth Sciences project in England on the formation of craters in sand by dropping glass marbles and measuring the diameter of the craters formed. I am using a rather simple method to get my results. The marbles are being dropped (from heights of 2.5m to 0.5m) into 5cm depths of sand. In the sand with the smallest grains the craters tend to stay the same size above about 1.2 meters. Would this be because the marble has reached itís terminal velocity or because of the depth of the sand or something else? Any other information which may be useful would also be GREATLY appreciated!! Thanks!
Re: Help! Craters!!
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