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  2. Force between magnets - Wikipedia

    en.wikipedia.org/wiki/Force_between_magnets

    Magnets exert forces and torques on each other through the interaction of their magnetic fields.The forces of attraction and repulsion are a result of these interactions. The magnetic field of each magnet is due to microscopic currents of electrically charged electrons orbiting nuclei and the intrinsic magnetism of fundamental particles (such as electrons) that make up the mater

  3. Magnetic levitation - Wikipedia

    en.wikipedia.org/wiki/Magnetic_levitation

    Magnetic materials and systems are able to attract or repel each other with a force dependent on the magnetic field and the area of the magnets. For example, the simplest example of lift would be a simple dipole magnet positioned in the magnetic fields of another dipole magnet, oriented with like poles facing each other, so that the force ...

  4. Magnetic field - Wikipedia

    en.wikipedia.org/wiki/Magnetic_field

    The magnetic pole model: two opposing poles, North (+) and South (−), separated by a distance d produce a H-field (lines). Historically, early physics textbooks would model the force and torques between two magnets as due to magnetic poles repelling or attracting each other in the same manner as the Coulomb force between electric charges. At ...

  5. Magnetic moment - Wikipedia

    en.wikipedia.org/wiki/Magnetic_moment

    In electromagnetism, the magnetic moment or magnetic dipole moment is the combination of strength and orientation of a magnet or other object or system that exerts a magnetic field. The magnetic dipole moment of an object determines the magnitude of torque the object experiences in a given magnetic field. When the same magnetic field is applied ...

  6. Coulomb's law - Wikipedia

    en.wikipedia.org/wiki/Coulomb's_law

    In the image, the vector F 1 is the force experienced by q 1, and the vector F 2 is the force experienced by q 2. When q 1 q 2 > 0 the forces are repulsive (as in the image) and when q 1 q 2 < 0 the forces are attractive (opposite to the image). The magnitude of the forces will always be equal.

  7. Then they used a long metal “spud bar” to test the thickness of the ice, which varied from about one to four inches (2.5 to 10 centimeters). They brought safety ropes so that if one fell in ...

  8. Magnetism - Wikipedia

    en.wikipedia.org/wiki/Magnetism

    Magnetism is the class of physical attributes that occur through a magnetic field, which allows objects to attract or repel each other.Because both electric currents and magnetic moments of elementary particles give rise to a magnetic field, magnetism is one of two aspects of electromagnetism.

  9. Remember Icebox from the '90s hit 'Little Giants'? Well, we ...

    www.aol.com/entertainment/2016-04-13-remember...

    The '90s were the best decade ever. We've said it once, we'll say it again. SEE ALSO: Remember Phil's sister Pim from 'Phil of the Future'?There is no way you ever recognize her today. With the ...