Various sensors can be attached to (or included in) multimeters to take measurements such as: 1  light level. 2  sound pressure level. 3  acidity/alkalinity(pH) 4  relative humidity. 5  very small current flow (down to nanoamps with some adapters) 6  very small resistances (down to micro ohms for some adapters)
The 1800s: Modern Golf Takes its Form: The 19th century is considered by many to be the period when the truly modern game emerged. The changes that primarily spurned this modernization were to the equipment of the game. Up to 1848, golf balls, as previously stated, were featheries, made of feathers and leather.
The opposite of work turned out to be play. The rich discovered leisure first, but by 1910 Florida became accessible to the middle class. Retirement communities, where older people did not have to see younger people working, began to appear in the 1920's and 30's. The number of golf courses in the United States tripled between 1921 and 1930.