Tire placard pressure is often much lower than listed on the tire sidewall. Air pressure given by the vehicle maker was based on the tires supplied with the vehicle. They design many newer replacement tires to give a good ride, with much more pressure.
Fresnel lens. A Fresnel lens is a type of lens invented by Augustin-Jean Fresnel. Originally developed for lighthouses, the design enables the construction of lenses of large size and short focal length without the weight and volume of material which would be required in a lens of conventional design. Detailed information.
There are other claims that the microscope and the telescope were invented by Roger Bacon in the 13th century, but this is not substantiated. Giovanni Faber coined the name microscope for Galileo Galilei 's compound microscope in 1625 (Galileo had called it the  occhiolino  or  little eye ).