Lift
Magnetic materials and systems are able to attract or press each other apart or together with a force dependent on the magnetic field and the area of the magnets, and a magnetic pressure can then be defined.
The magnetic pressure of a magnetic field on a superconductor can be calculated by:
where is the force per unit area in pascals, is the magnetic field just above the superconductor in teslas, and = 4π×10−7 N·A−2 is the permeability of the vacuum.
Read more about this topic: Magnetic Levitation
Famous quotes containing the word lift:
“I pray every single second of my life; not on my knees, but with my work. My prayer is to lift woman to equality with man. Work and worship are one with me. I can not imagine a God of the universe made happy by my getting down on my knees and calling him “great.””
—Susan B. Anthony (1820–1906)
“They shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up sword against nation, neither shall they learn war any more.”
—Bible: Hebrew Isaiah 2:4.
“Lift up your hearts, my brothers, high, higher! And don’t forget about your legs either! Lift up your legs as well, you good dancers, and better yet—stand also on your heads!”
—Friedrich Nietzsche (1844–1900)