Very Powerful Magnets
Very Powerful Magnets
Magnets of immense power are used extensively across a range of industries and applications - including electrical motor manufacture, medical science research, renewable energy development and model making hobby. Additionally, powerful magnets have also proved invaluable as tools in hobbies like model making.
Florida State University scientists have created the world's strongest magnet using a hybrid combination of neodymium and boron. Their 22-foot tall magnet can create magnetic fields up to 45 Tesla.
Neodymium
Neodymium is one of the rare earth elements and when combined with iron and boron it produces some of the strongest magnets available on the market. These magnets find uses in various applications including large motors requiring high magnetic strength; MRI machines; wind turbine generators; aerospace components and hard disc drives as well as mobile phones containing hard disc drives or mobile phone processors, hard disc drives or mobile phones as hard disk drives or mobile phone processors, or small neodymium magnets found in earbuds pens or pencils as well as helping detect counterfeit money.
Neodymium can be extracted from monazite ore by employing repeated electrostatic separation followed by hot concentrated sulphuric acid treatment to dissolve lanthanides sulfates and isolate cerium as its insoluble ion. Machine tools can also be used, though with liberal amounts of coolant to avoid heat fracture and prevent fires caused by oxidized grinding dust.
Cylindrical
A cylinder is a three-dimensional solid geometric figure formed of two congruent circular bases connected by an arcuate surface, called its height or diameter. Cylinders can often be found in drinking cans and batteries as well as polyhedra and mathematics.
The cylinder of revolution is a special type of cylinder created by rotating an aligned line segment parallel to an inert line. The area and volume calculations for such an object are identical to those for right circular cylinders.
Cylindrical power, also known as divergence/convergence errors, occurs when one side of your eye sees blurry objects while still having clarity in another direction (divergence/convergence). It typically remains stable throughout a person's lifetime compared to permanent problems like spherical error that cannot be treated using eye drops or surgery.