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LittleBits consists of small circuit boards with specific functions built to snap together with magnets [15] without soldering, wiring, or programming. Each bit has its own specific function, such as light, sound, sensors, or buttons. [2] There are "trillions of billions of combinations" possible in the littleBits open source library. [5]
Similar to magnetic-core memory, magnetic rings (or cores) are used to determine the data of the software. Unlike magnetic-core memory, the cores themselves are not used to store the data; the way a core is wired controls whether that core represents a '0' or a '1'. There are three main types of functions a wire can have in core rope memory:
The magnetic field lines of a current-carrying loop of wire pass through the center of the loop, concentrating the field there. Magnetic field generated by passing a current through a coil. An electric current flowing in a wire creates a magnetic field around the wire, due to Ampere's law (see drawing of wire with magnetic field).
Modify your television set to accept a baseband video signal for better picture quality when using a computer or VCR. John Soluk: 54/4: April 1983 Build your own custom cases: Give your projects a profession look with custom-built cases. Robert Grossblatt: 54/4: April 1983 VLF-HF active antennas: Part 3.
Electropermanent magnets made with powerful rare-earth magnets are used as industrial lifting (tractive) magnets to lift heavy ferrous metal objects; when the object reaches its destination the magnet can be switched off, releasing the object. Programmable magnets are also being researched as a means of creating self-building structures. [2] [3]
A magnet's magnetic moment (also called magnetic dipole moment and usually denoted μ) is a vector that characterizes the magnet's overall magnetic properties. For a bar magnet, the direction of the magnetic moment points from the magnet's south pole to its north pole, [ 15 ] and the magnitude relates to how strong and how far apart these poles ...
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