Both Google and Facebook recently announced new policies to combat fake news, meaning these batshit theories not only had legs but are highly trackable. So, with that in mind, letâs take a look at the most prominent conspiracy theories thatâll keep you up at night wondering âwhat if?â 1) 9/11 Was An Inside Job Did George Bush knowingly allow the attacks on the World Trade Center to happen?
The clinometer, also known as an inclinometer or a gravity inclinometer, was invented by William B. Melick in 1889. It was invented to measure the gradient of a slope and the height of objects like trees.
From 1852 to 1885, perforated pipe systems were used in textile mills throughout New England as a means of fire protection. However, they were not automatic systems; a person had to operate the system. Inventors first began experimenting with automatic sprinklers around 1860. The first automatic sprinkler system was patented by Philip W. Pratt of Abington, MA, in 1872. Henry S. Parmalee of New Haven, Connecticut is considered the inventor of the first automatic sprinkler head. Parmalee improved upon the Pratt patent and created a better sprinkler system.