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: Transport Applications Of Maglev
Famous quotes containing the word lift:
“Oh! lift me as a wave, a leaf, a cloud!
I fall upon the thorns of life! I bleed!”
—Percy Bysshe Shelley (1792–1822)
“For every man that Bolingbroke hath pressed
To lift shrewd steel against our golden crown,
God for his Richard hath in heavenly pay
A glorious angel. Then if angels fight,
Weak men must fall; for heaven still guards the right.”
—William Shakespeare (1564–1616)
“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.