Why does a magnet lose its magnetism when dropped? How does fungi affect plants? Why do magnets lose their magnetism when heated? What effect does shifting cultivation have on the landscape? How do animals use the Earth's magnetic field to navigate?
Why are light touch receptors found at the skin's surface? Why do magnets lose their magnetism when heated? Why is blood pressure lower in veins than capillaries? Why do metals reflect light? Why do the energetics (heat flow and work) of fast and slow processes diffe...
All ferromagnetic materials lose their magnetism with heating; the temperature where they lose their magnetism is called the Curie Point. Neodymium magnets lose their strength between 80 degrees C and 230 degrees C, depending on the grade. While this is higher than room temperature (25 degrees C)...
What makes Magnets Magnetic? All matter is made up of atoms. Atoms in turn, are made up of protons, electrons and neutrons. In most materials almost all the electrons form pairs, with the magnetism from the two paired electrons exactly cancelling. This makes such materials non-magnetic. What...
Physicists have some understanding of how magnets function. However, some phenomena that underlie magnetism continue to elude scientific explanation. Exactly how do magnets work? Large-scale magnetism, like the kind observed in bar magnets, results from magnetic fields that naturally radiate from the ...
While most spiders rely on webs, camel spiders use adhesive patches on their own bodies. The Super Powers of Spiderman at Our Fingertips with Nanotechnology-enabled Glue by Dexter Johnson. IEEE Spectrum, April 16, 2010. Researchers develop a glue that can be switched on and off by magnetism....
a friend and I tried to work with some magnets and flux there about 20 years ago, but have yo checked these new devices out on Youtube?? They show you how to make your own. They do not work by utilizing “force” as most of us may have been tempted to think [or try, in our ...
Old quantum magnetism folklore Collinear Neel not connected to spin liquid thru 2nd order transition in 2d Noncollinear Neel – spin liquid can result. Theoretical basis: Large-N calculations, quantum dimer models, etc. Apparent difficulty for spin liquid based approach in cuprates……. ...
Old quantum magnetism folklore Collinear Neel not connected to spin liquid thru 2nd order transition in 2d Noncollinear Neel – spin liquid can result. Theoretical basis: Large-N calculations, quantum dimer models, etc. Apparent difficulty for spin liquid based approach in cuprates……. ...
a) By how many percent is the torque of a motor decreased if its permanent magnets lose 5.0% of their strength? b) How many percent would the current need to be increased to return the torque to original values? Name the few methods of increasing friction. Explain about induced and reduce...