Recent content by hodges

I remember reading an article in an old amateur science magazine about someone actually doing this. I recall they were able to see that potassium salts are composed of two isotopes due to two different amounts of deflection. I seem to recall this was from a CD full of old articles from...

Okay, let me see if I understand. You are saying the fact that it early winter is immaterial, except for the fact that at that time of the year the Earth happens to be revolving around the sun at its slowest rate. Even if the Earth was not tilted at all, we would still see the same variation...

Won't there be a constant force on each of the magnets (force on a magnetic dipole in a magnetic field)?

I know the magnetic field makes a circle around a wire with current flowing through it. So I wondered if a motor could be made in the following way. Take a round plastic sleeve with an inner diameter slightly more than the wire. Glue 4 magnets on the sleeve, such that they form a circular...

I've wondered this for a few years now. I have a list of local sunrise and sunset times, and I notice that, as the seasons change, sunrise and sunset times don't change symmetrically. I thought the listed times might just be wrong, but I do observe times close to these each year. Here is an...

Thanks for the links. Am I understanding correctly that the first link repudiates what the video describes being attempted? What is the second link? Is it trying to show that the original process using light does not work by arguing that the claimed effects do not even need light? Hodges

Found this on Youtube. Sounds pretty far-fetched to me, but given that it was supposedly broadcast on the Discovery Channel I watched it. The idea is to be able to distort space and time with laser beams, such that a particle can be sent from the future back to the past. Supposedly it is...

Many years ago, as a child, I remember reading about an experiment that was supposed to prove that the Earth rotates. The experiment involved a dish of water and small pieces of cork. A slit was cut in a piece of paper, and ground-up cork was allowed to fall through the slit onto the water...

See Experiment 7 at: http://mattson.creighton.edu/Cl2/index.html

I guess one thing I wonder about ball lightning is why I have never seen a home video of it. Look at all the home videos you see of tornadoes. Surely there should be at least one home video of ball lightning with all the camcorders out there these days?