Electric pulses from the body's senses are transmitted to the brain, which utilizes about 100 watts of power. The discussion highlights the brain's energy consumption and its significant role in heat loss, with half of the body's heat dissipated through the head. There is a lack of definitive studies on the specifics of how these electric pulses are processed in relation to energy conservation. The complexity of brain chemistry complicates the understanding of these pulses. It is emphasized that these neural signals should not be directly compared to electrical currents in wires.
#1
jobyts
226
60
The senses in our body sends electric pulses to the brain. Once it reaches the brain, what happens to the pulse (in the context of conservation of energy)?
The brain uses approximately 100 watts of power. Remember that half of the body's heat loss (the result of dissipated energy) is radiated from the head.
#3
TVP45
1,041
5
I don't believe there are any definitive studies on that. There are just a ton of chemicals you would have to account for. Although it makes a decent anaolgy, you shouldn't think of those pulses in the same way you think of a current in a wire.
It may be shown from the equations of electromagnetism, by James Clerk Maxwell in the 1860’s, that the speed of light in the vacuum of free space is related to electric permittivity (ϵ) and magnetic permeability (μ) by the equation: c=1/√( μ ϵ ) .
This value is a constant for the vacuum of free space and is independent of the motion of the observer. It was this fact, in part, that led Albert Einstein to Special Relativity.