Purpose:
The purpose of this experiment is to determine if fans really cool the body and
its temperature, I believe that the fan will evaporate the water it is blowing
on, which is acting like perspiration on skin. The humid layer should be
replaced by a dryer, cooler layer. The water in the pan which the air current is
blowing on should evaporate quicker than the second pan, and it should be cooler
than the second pan
Experiment:
The first pan was securely placed exactly sixteen inches from the fan, while the
second pan was placed out of reach of the current, Thirty milliliters of warm
water was placed in both pans. The fan was then turned on medium speed. The pan
with the current blowing on it was checked at fifteen-minute intervals,
decreasing time intervals when the water was getting low. These times were
recorded in a log book. The second pan was checked the next day. The humidity,
temperature inside, temperature outside, and the temperatures of the water
before, hourly, and near the end were recorded.
Result:
The pan with the air current blowing on it took about three hours and
twenty-seven minutes to evaporate completely, The second pan took about
twenty-seven hours. Therefore, the second pan took about 5.170 times more to
evaporate.
Conclusion:
Therefore, the layer of moisture, if on skin, would be swept away
quicker by a fan than just letting it evaporate naturally. A cooler layer then
replaced the warm moisture.
