An electric motor is a device used to convert electrical energy to mechanical energy. Electric motors are extremely important in modern-day life. They are used in vacuum cleaners, dishwashers, computer printers, machine tools, cars, subway systems, sewage treatment plants, etc, and you can make your own at home! Here’s how:
Coil the wire around a battery about 30 times. Wrap the extended ends of the wire through the coil, securing the coils in place.
Carefully file the enamel off of the bottom half of the extended portion of the wire.
Secure one wire post to each end of the battery, creating a small U-shape to cradle the coil.
Slide a magnet onto the battery.
Place the coil onto the posts and give it an initial spin!
Electricity will flow from the battery through the coil of wire. Moving electricity induces a magnetic field in the coil, which opposes the magnet half of the time, and is attracted the other half. Give it a flick and watch the electrical energy from the battery be converted into the mechanical spinning you see!
If you think magnets are already like magic, wait until you get your hands on the newest technology from Polymagnets! This new science has opened minds and doors to applied sciences.
Polymagnets created the “maxel”, a magnetic pixel, if you will. It is in the same vein of ideas as 3D printing, but with a twist. Using maxels, you can impose a specific magnetic field onto a “blank” sheet of metal. You can create different magnetic fields on a single surface, whereas with a typical magnet, there is a single magnetic field associated with the entire magnet.
This technology can create incredibly strong magnets, showcasing that the strength of a magnet is independent of it’s size. It can also create unique patterns of magnetic fields.
A standard magnet has a north and south pole, with a single pattern of magnetic field lines. However, maxels allow for a strange ability of two of their magnets. At a certain distance away, they will be attracted to each other, but once they reach a critical closer distance, will repel. They call this a “spring”. But, they took it one step further. They made a lock, which is their spring design plus when you rotate the magnets to a certain point, the magnetic fields line up and snap into place. To undo the lock, you simply rotate the magnets back.
The idea that science and technology is constantly pushing forward is one that we love to instill in our students, parents of students, and teachers. There is no limit to new science, and not everything has been thought of. Let Polymagnets inspire you to create and push humanity forward in the never ending journey of seeking new knowledge.
We would like to thank you for visiting our blog. AstroCamp is a hands-on physical science program with an emphasis on astronomy and space exploration. Our classes and activities are designed to inspire students toward future success in their academic and personal pursuits. This blog is intended to provide you with up-to-date news and information about our camp programs, as well as current science and astronomical happenings. This blog has been created by our staff who have at least a Bachelors Degree in Physics or Astronomy, however it is not uncommon for them to have a Masters Degree or PhD. We encourage you to also follow us on Facebook, Instagram, Google+, Twitter, and Vine to see even more of our interesting science, space and astronomy information. Feel free to leave comments, questions, or share our blog with others. Please visit www.astrocampschool.org for additional information. Happy Reading!