Thursday, February 5, 2009

Quicksand

Today Mr. Lim told us to research on quicksand in relation to the formula Pressure=Force divided by Area. According to Wikipedia, Quicksand is a non-Newtonian liquid. That means that the liquid seems solid when untouched but when stepped on it quickly becomes a liquid and then quickly solidifies around you again. This is because the pressure applied causes the person to slowly sink down. However, if a person applies enough force and is quick enough, it is even possible to walk on quicksand or other such liquids.

The same concept is applied with trying to get out of quicksand. You have to slowly and methodically move about towards the edge or something to grab onto. By keeping calm and not panicking, and taking deep breaths, you remain bouyant. Although it is a long and tedious process, you willl eventually be able to get out.

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