Once you make it to the bathroom, the commode is missing because B. In the 1920s, using natural gas to power a heating furnace was a revolutionary idea that conserved energy and paved the way for the central heating systems we all have in our homes today. (a)Īs we wake on the morning of no black history, there’s a great chill in the air because the gas burner that heats your furnace was created by B.F. Black inventors were major contributors during this era – even though most did not obtain any of the benefits associated with their inventions since they could not receive patent protection. During the 17th and 18th centuries, America was experiencing rapid economic growth. Commissioner of Patents officially ruled that slave inventions couldn’t be patented. Slaves were not considered American citizens and laws at the time prevented them from applying for or holding property, including patents. This question has a high range of difficulty, but I will try to answer…It is a particularly hard task because there are so many undocumented inventions by Black Men and Women that were assumed by the inventor’s slave masters.
0 kommentar(er)
