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Title : Can Cellphones Make Popcorn?
link : Can Cellphones Make Popcorn?
Can Cellphones Make Popcorn?
Several websites have circulated videos showing how cellphones can make corn kernels into popcorn. In the experiment, used 8 cellphones, some ears of corn, and carried out by 4 people.First of all, the cell phone is placed face to face in 4 directions on the table in the opposite direction (north, east, south, west). Put a gap in the middle of the four cellphones to place a few grains of corn.
Each person with 4 other mobile phones simultaneously call to the phones that are on the table. Within 4 seconds the corn grains begin to turn into popcorn.
This illustrates that cell phone radiation can ripen the corn grains. What if the corn grains are us while the cellphones are the BTS towers that surround us? Are the consequences?
The question is, "Could that happen?" The answer is, "Obviously impossible." We need physics to prove this. To make popcorn, corn must be heated, using oil with temperatures above 100 degrees Celsius. And to heat the temperature of oil, it needs heat. According to the Law of Conservation of Energy, Energy can change to another form but cannot be destroyed.
In the case above, to raise the temperature of the grains of corn to become popcorn, the energy must come from electromagnetic waves emitted by cellphones. How big is the energy?
Flow when the cell phone works more or less 400 mA. Cellphone Voltage 3.7 volts. So power = 400 x 3.7 mW. For 1 second it takes as much energy 400 x 3.7 mJ (mJoule).
Not all of the energy produced by cellphones becomes electromagnetic wave, but only in part. We already know that 1 mJ = 0.24 milli calories. So it's 400 x 3.7 mJ = 0.24 x 400 x 3.7 mJ = 355.2 milli calories.
4 cellphones in 1 second released 4 x 355.2 = energy 1420, 8 milli calories. That much energy is used to raise the temperature of the grains of corn. For 4 seconds, the energy of electromagnetic waves generated by 4 cellphones = 4 x 1.42 calories = 5.68 calories.
To find out how much heat is needed, we need this formula: Q = m.c. (t2 - t1)
Q: Required heat (calories)
m: The mass of objects (gram)
c: Specific heat (calories / g.C)
(t2 - t1): Temperature change (C)
Since the heat of the type of popcorn seeds is unknown, just suppose that raising the temperature of 1 cc of water with the heat of the type of water = 1 calorie / g.C
Temperature changes that occur to make popcorn with the data above is 5.68 / 1 × 1 = 5, 58. It turns out that only 5.58 degrees Celsius only! That, too, with a note that all the energy used by mobile phones, all of which are converted into electromagnetic wave energy, and are considered entirely absorbed / converted into heat.
Obviously impossible right?
source: https://nupho.wordpress.com/2008/12/14/ponsel-popcorn/
Thus the article Can Cellphones Make Popcorn?
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