Recent content by Evil Bunny

Good point... I guess gravity is the only reason we need to expend energy on a steady run in the first place. So, what I learned from this thread is that heart rate monitors are completely useless if you're interested in calorie burn. Interesting...

I understand that an athlete will have a higher metabolism than a non-athlete. And if they were each sitting on a couch next to each other, the athlete would burn more calories while they're both resting based on metabolism alone. But what happens with calorie burn when they both run 6 mph for...

Thanks for the replies... I guess what I'm trying to find out is an answer to a more specific question. In physics, if you move an object with a specific weight (175 lbs in my example) at a specific rate (6 mph in my example), there is a specific energy requirement. Energy is measured in...

Is there a direct correlation between calorie burn and heart rate? If an athlete and a couch potato each weighed 175 lbs and ran a mile in 10 minutes, would they burn the same amount of calories? I would assume the couch potato would have a much higher heart rate during this event. Does that...

So I guess wavelength is irrelevant? We know velocity and time, so I guess the wavelength never mattered in the first place...

Ok sorry. Is that enough information?

Yeah its a laser... 1.44 refraction index

How far will a 1300 nanometer wave travel in 100 nanoseconds? I know its simple but I can't remember how to do it...

Thank you for the thorough explanations... Exactly what I was looking for. I was having a hard time finding explanations like this... So the primary current flow (with an open secondary) can be calculated by figuring out the inductive reactance of the entire transformer and adding that to the...

Good answer. Thank you. How is the loaded secondary decreasing the inductance of the primary?

When you have no loads connected to the secondary of a transformer, what is the current in the primary? When you start connecting loads to the secondary, what phenomenon is making the current increase in the primary?

No... I guess not. I was thinking wires not lightning. Point taken.

So... the consensus is that you can still have a visible arc in a vaccum. Does the arc look any different than it would in our normal atmosphere? Same orange-ish color and everything?

Can you create an arc in a vaccum?

Check out http://www.allaboutcircuits.com/vol_2/chpt_6/1.html" ... It gives very detailed descriptions of what is happening in an LC circuit. I think this is the answer you're searching for: