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.
Otto von Guericke: Father of Vacuums. Otto von Guericke was a German scientist born in the town of Magdeburg, Germany. He is best remembered for founding the physics of vacuums. In 1650, Otto invented a vacuum pump that was designed to pull air out of whatever vessel to which it was connected. It contained a piston and an air-gun cylinder with one-way flap valves.
He discovered that the application of heat to food in sealed glass bottles preserved the food from spoilage. In 1800, Napoleon offered an award of 12,000 francs to anyone who could devise a practical method for food preservation for armies on the march. Appert won the award. Appert had found a new and successful method to preserve foods, but he did not fully understand it.