Short-term disability insurance, which is most often purchased as part of a group at work, can be paid by either the employer or the employee. Group short-term disability insurance policies are guaranteed issue, meaning you do not have to take a medical exam to buy coverage.
In 1650, Otto von Guericke invented the air pump, used to create a partial vacuum. Using hollow copper spheres and an air pump of his own construction, Guericke demonstrated that a partial vacuum could be created by pumping the air out of the sphere.
Gyroscope-History of the Gyroscope Jean Bernard Leon Foucault. Leon Foucault (1819-1868), a 19th-century French scientist and physicist, is responsible for giving the name gyroscope to a wheel or rotor mounted in gimbal rings -- i.e. a set of rings that permit it to turn freely in any direction.Leon Foucault named his gyroscope in 1852. year earlier (1851) Leon Foucault invented the Foucault pendulum which he used to measure the Earth's rotation. Among his other achievements: in 1850, Foucault proved that light traveled more slowly in water than in air; and in 1858 Foucault made an improvement to the mirrors used in reflecting telescopes.