The force exerted by a magnet on other magnets is called magnetic force. Magnetic force and electrostatic force act on an object from a distance. That’s the reason they are non-contact forces. The strength of gravity is an attractive force that is exerted by the Earth on objects, which ...
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Compared to magnetic tapes, punched tapes had better longevity if acid-free paper or similar paper was used. In the case of tear or damage, it could be fixed to a certain extent and therefore had better human accessibility. Paper tape was immune to magnetic fields and so the data could ...
Magnetic Sheets are a synthetic, rubber-based substance that is permanently magnetized and has a wide range of uses in the signage and graphics industries. For situations requiring semi-permanent advertising, a magnetic sheet is an ideal choice. The easiest surface for sheet magnet adhesion is ...
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And the stark answer is, we don’t know. We … do … not … know. You can study it. You can observe it. But it’s complex beyond our ability to analyze. It’s just like F-MRI [functional magnetic resonance imaging] on people’s brains. It’s the crudest sketch of what the ...
An NFC tag chip is a passive device: embedded in an antenna, it is powered by the magnetic field generated by the NFC reader (for example, a smartphone). An NFC tag responds to specific NFC instructions. For instance, it can reply to an instruction such as “Read command” by displaying...
This includes superconductivity, interesting thermo-chemistry, and magnetic behavior (Pöttgen et al. 2005). Some compounds are also important in homogeneous and heterogeneous catalysis (Peruzzini and Gonsalvi 2011). With respect to P4 routes, given the drawbacks of chlorine-based and heavy salt-...
Mathematically, permeability is expressed as the following: μ=magnitude of magnetic induction/intensity of magnetic field μ=B/H In SI units, μ is expressed as henries per meter (H/m). The permeability of free space, expressed as μo,is known as theabsolute permeabilityor thepermeability co...
One can generalise this equation in a number of ways, for instance by replacing the spatial domain with some other manifold and replacing the Laplacian with the Laplace-Beltrami operator or adding lower order terms (such as a potential, or a coupling with a magnetic field). But for sake of...