- #1
d4rr3n
- 53
- 0
Theoretical question about a bar spinning with unlimited angular velocity.
Lets imagine we have a bar of indestructible metal and we attach this bar onto a motor which is capable of an infinite number of rpm. We have a dial next to the motor that allows us to increase the rpm of the motor. We start the motor off and gradually increase the rpm.
First a low pitch hum is heard coming from the rotating bar which is attached at right angles to the motor shaft so that the center of the bar is in line with the center of rotation of the motor shaft. This hum gradually increases in pitch as the motor speeds up until it is a high pitch sound then at a frequency above human hearing. It is noted that the bar starts to heat up as it spins rapidly, first only an infrared camera can pick it up but soon the bar is glowing a dull red, then a cherry red, then orange, yellow, blue and then it is white hot.
As you can see we started with low frequency sound waves then to high frequency sound waves then onto low frequency infrared electromagnetism and went through the spectrum until it was glowing white hot.
My question is will the bar go on to emit x-rays and eventually gamma rays and would it at any point emit radio or microwaves
Lets imagine we have a bar of indestructible metal and we attach this bar onto a motor which is capable of an infinite number of rpm. We have a dial next to the motor that allows us to increase the rpm of the motor. We start the motor off and gradually increase the rpm.
First a low pitch hum is heard coming from the rotating bar which is attached at right angles to the motor shaft so that the center of the bar is in line with the center of rotation of the motor shaft. This hum gradually increases in pitch as the motor speeds up until it is a high pitch sound then at a frequency above human hearing. It is noted that the bar starts to heat up as it spins rapidly, first only an infrared camera can pick it up but soon the bar is glowing a dull red, then a cherry red, then orange, yellow, blue and then it is white hot.
As you can see we started with low frequency sound waves then to high frequency sound waves then onto low frequency infrared electromagnetism and went through the spectrum until it was glowing white hot.
My question is will the bar go on to emit x-rays and eventually gamma rays and would it at any point emit radio or microwaves