Recent content by overlook1977

Makes sense...I was forgetting about wave intensity. Thanks!

do you know if a cordless phone or other 2.4 GHz wireless device can make a measurable difference in nearby water temperature (however small)?

If a microwave oven is using the same frequency as a 2.4 GHz cordless phone, why is it that a cordless phone does not heat your body when you use it? I am assuming it has something to do with concentration or focus of the waves? I would assume a cordless phone or anything that emits waves in...

I have a set of rare Earth magnets. I have two separate stacks of them, emulating two bar magnets. Both magnets' North poles resist each other (obviously). However, if I put a straightened paperclip between both North poles, the wire is attracted to both magnets connecting both Norths via the...

This may be a stupid question, but I do not understand why the Euler sum is infinite for zeta=1. Why is "1+1/2+1/3+1/4+... " infinite, but zeta=2 (1+1/4+1/9+...) not?

I have a flat rectangular refrigerator magnet. I was curious to where the N S poles were, so I took a standard bar magnet to it to find them. Curiously, the bar magnet does not seem to be repelled at any place of the refrig magnet. Where would the poles be on a flat, bendable refrig magnet?

Can someone elaborate on the relationship of the Riemann zeros and primes? How are the zeros harmonic to the primes? The quotes below mention the 'sum of its complex zeros' and 'other sums over prime numbers'. Can someone clarify this? From Answers.com: "The zeros of the Riemann...

I noticed when I stick a cylindrical magnet on a smooth metal surface (longways) and roll the magnet along the surface, it does not roll smoothly. Instead, it seems to resist movment, then 'pop' forward into another position. It is almost as if the magnet has a preference on which side sticks...

I took apart a Staples Easy button toy to see how it worked. Its very simple; attached to a circuit board there is a resistor, a capacitor, a button, and a circular black object that looks like a glob. The board is attached to a speaker and battery. So, something is telling this toy to say...

So my question is, would the light be so redshifted that we would not even be able to visibly see an image of the astronaut?

From what I understand, if an outside observer was to witness an astronaut falling into a black hole, relativity dictates that we would see him approach the black hole slower and slower until he ultimately "freezes" in our relative time due to time dilation. My question is, would we actually...