Deprecated function: Array and string offset access syntax with curly braces is deprecated in include_once() (line 20 of /home/raw3y9x1y6am/public_html/includes/file.phar.inc).
I selected this experiment as a hands-on activity to compliment the Faults video. Using a model is an easy way to explore how faults work, and what causes the different kinds of faults.
I really wanted to use the Electric Tape experiment for a video, but the sparks did not show up enough on tape. Until I can afford one of the new, super low light video cameras, we will have to get by with reading the text version. After the recent news articles about producing x-rays with adhesive tape, I thought it would be fun to do an experiment that would help explain how it works.
This experiment is a classic. If I had to pick the one science experiment that I have seen in the most science books, this now would be it. But it is also a very misunderstood demonstration. You will find that even many books of science experiments get the explanation for this one wrong.
It has been a while since I did a biology related experiment, so this week we are going to take a look at how your muscles work. In particular, we are going to examine the muscles that move your arm, to see what is really involved in moving your body.
I wanted to do an experiment about demagnetizing magnets, and the simplest way was to begin by magnetizing some paperclips. Once we do that, then we will explore ways to get rid of the magnetism.
This experiment is one that has been "cooking" in my mind for a while now. Today I had carpets on my mind, since I was cleaning them with our new carpet cleaner. We live at the beach, and our carpets tend to get dirty and sandy, so we place small rugs along the pathway that gets the most use. One problem is that the rugs don't stay there. They slowly migrate across the room. How can this happen? Is the cat doing it to drive us crazy? (She would if she thought it would work!) No, the cat is not involved. The movement is due to the interaction between the carpet and the rugs.
Today I was playing with sound experiments, and had so much fun with this one that I thought I would share it. It is based on the original phonographs, which used a very similar setup to play recordings of music or voices. They used a large cone to increase the volume of the sound.
If you have ever watched a cat preparing to pounce on its favorite toy, you may have seen it wiggle its back legs from side to side just before it leaps. Why do they do that? It would seem that the movement would alert their prey, so there has to be a good reason for the behavior. To understand that, we need to learn a bit about muscles and tendons.
