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Magnetic levitation (maglev) or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Magnetic force is used to counteract the effects of the gravitational force and any other forces.
Eric Roberts Laithwaite (14 June 1921 – 27 November 1997) was an English electrical engineer, known as the "Father of Maglev" [1] for his development of the linear induction motor and maglev rail system after Hermann Kemper.
Transrapid 09 at the Emsland test facility in Lower Saxony, Germany A full trip on the Shanghai Transrapid maglev train Example of low-speed urban maglev system, Linimo. Maglev (derived from magnetic levitation) is a system of rail transport whose rolling stock is levitated by electromagnets rather than rolled on wheels, eliminating rolling resistance.
Some species may only be able to detect north and south, while others may only be able to differentiate between the equator and the poles. Although the ability to sense direction is important in migratory navigation, many animals have the ability to sense small fluctuations in earth's magnetic field to map their position to within a few kilometers.
The female will then gently push on the male from the side and crawl under them, after that the male frog will clasp the female frog. That is the process of amplexus. Female H. fleischmanni prefer to lay their eggs on overhanging leaves by the river. The number of eggs is dependent on the time of year they are laid.
FROG is currently the standard technique for measuring ultrashort laser pulses replacing an older method called autocorrelation, which only gave a rough estimate for the pulse length. FROG is simply a spectrally resolved autocorrelation, which allows the use of a phase-retrieval algorithm to retrieve the precise pulse intensity and phase vs. time.
Hoplobatrachus tigerinus, commonly known as the Indian bullfrog, is a large species of fork-tongued frog found in South and Southeast Asia. A relatively large frog, it is normally green in color, although physiological traits vary between populations. Sexual dimorphism exists between males and females.
The inner thighs of these frogs are bright yellow, which helps to confuse a predator when the frog jumps and reveals the color. The toes have sticky pads that are useful in their arboreal life. [8] The skin on their heads is fused to the skull; if the head of an adult frog is rubbed (between the eyes), the skin does not move.