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Wisdom Teeth

I recently had my wisdom teeth removed, and it wasn't even the worst experience of my life, all thanks to the Novocain. My face was completely numb, couldn't feel a thing. It's not like I couldn't feel any forces though: I could tell that my cheek was being pulled to one side because my hole head felt the force of the pull, but I could not feel anything touching my cheek, an odd experience. And after the surgery I was touching my face a lot because touching your own face when it is numb is a ver

BrandyBoy72

BrandyBoy72

Damage

You may have heard before that potential energy can be described as the amount of damage something can do. Mr. Powlin gave us the example last year of something with a greater mass or speed will do more 'damage'. It should be also noted that the area which is affected by the force will determine the 'damage' and the duration of the impact. Also how the force is distributed into the object receiving the force.  For example, a skier who weighs 150 lbs going 20 mph can lessen the damage of a f

BrandyBoy72

BrandyBoy72

Overheating

A common use of a brush motor is in a fan, for example the type that is used to keep my laptop from overheating. But what exactly is that preventing, and what does overheating do to a system such as a laptop? The fan helps to keep internal units cooled down, heat is created when there is resistance in the different hardware inside the computer. With all the units preforming very close to each other, a lot of heat can be generated. This is why keeping any appliance that generates a lot of re

BrandyBoy72

BrandyBoy72

Electricity and You

What exactly happens when electricity flows through a person, how does it effect their body and how can these effects be measured? People are conductive, electricity will flow through a person if able, and can do harm to a persons body, including burns and upsetting the heart. Small enough voltages might not conduct through your skin, the most susceptible place on your body is probably your tongue.  In terms of Amps, 1 mA of current through your body would only cause tingling, but upwa

BrandyBoy72

BrandyBoy72

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