magnet experiment

  1. What Will Happen to a Magnet in Water

    What Will Happen to a Magnet in Water
    Will a neodymium magnet lose its power when dropped in water? The simple answer is no. In fact, magnets are sometimes used for underwater recovery. Boaters and fisherman may use a magnet retrieval tool to recover some lost items such as keys or magnetic fishing gear that have been dropped in the water. However, one concern is that the magnets will begin to corrode, especially if they are made of materials like neodymium. On the other hand, water has shown diamagnetic properties. Continue reading →
  2. Make a Homopolar Motor with Neodymium Magnets

    Make a Homopolar Motor with Neodymium Magnets
    Magnets are used in electric motors to assist in transferring electrical energy to mechanical energy. The homopolar motor, the simplest electric motor, was first demonstrated by Michael Faraday in the early 1800s. His demonstration showed how electromagnetism can support motion, but the design used mercury and was not advanced enough to be used for any practical application. Nevertheless, the finding made the many advanced motor-based technologies that we see today possible. Continue reading →
  3. Magnet Experiments: Make Magnetic Silly Putty

    Magnet Experiments: Make Magnetic Silly Putty
    You may remember playing with the stretchy and colorful goo-like globs called silly putty when you were a kid. Putty was actually invented by accident during World War II by James Wright, an engineer trying to come up with a cost-effective alternative to rubber for the U.S. military. He accidentally poured boric acid into silicone oil, creating the main ingredients of the the elastic toy we know today. However, the putty we know today wasn’t marketed as a fun pastime until Peter Hodgson saw its potential as a toy and bought the production rights after it was rendered useless as the military’s rubber alternative. One substance that is even more fun to experiment with than putty is magnetic putty. Magnetic putty has the same squishy texture as silly putty, but reacts with magnets in eye-catching ways. You can make your own magnetic putty with this simple and quick tutorial. Because this this experiment uses iron oxide powder it is meant for adult-use only and should not be done with small children. Continue reading →
  4. Experiment: Remove Iron from Cereal

    Experiment: Remove Iron from Cereal
    You may have heard tales of the additives in processed foods, but have you ever actually seen them? Unlike fairy tales, food additives do exist and can be found in many common processed foods. Continue reading →
  5. Magnet Science Experiments for April 1st

    Magnet Science Experiments for April 1st
    Since today is renowned for its trickery, we’re honoring it with some cool science experiments that are great in classroom and learning settings to show the relationship between magic and science. Continue reading →
  6. Ferrofluid: Overview and Experiment

    Ferrofluid: Overview and Experiment
    NASA first developed ferrofluid while experimenting with different methods to control liquid in zero-gravity space conditions. Since it was developed, ferrofluid is now used in a number of practical applications like: Continue reading →

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