The original review is below, but check out our current Bathroom Scale Reviews here. Etekcity Etekfit Digital Bluetooth. The Etekcity Etekfit Digital Bluetooth Scale is a great tool for weight loss. It is one of the most accurate bathroom scales and will track your weight, body mass index and body fat percentage.
Willis Carrier is credited with inventing modern air conditioning in 1902. In 1915, Carrier and six other engineers pooled $32,600 to form the Carrier Engineering Corporation. They purchased their first factory in 1920, in Newark, New Jersey.
In 2000, air conditioning/refrigeration was named among the 10 greatest mechanical engineering achievements of the 20th century, according to a survey of ASME members. Air conditioning actually has roots in second century China, where an inventor named Ding Huane crafted a manually powered rotary fan.