History 5 Lesson 55

Ether

Crawford Long was born in Gergi in 1815. He spent many years learning to become a doctor. Long moved home to Georgia to practice. Long noted the properties and effects of weather on people. Used either as an anesthetic in 1842. Diethyl ether general anesthetic for surgery. He breathed in vapor from a rag. Signaled the era of pain-free surgery. Side effect:made patients sick. Multiple liam over the invention of anesthesia. Morton, Jakson, and Long all claimed credit. All three fought bitterly which ended in humiliation and tragedy. Morton and wells probably get the idea from Long. History acknowledges Long as the inventor.

Fax Machine

Alexander Bain invented the fax machine, he was born in Scotland in 1811. Apprenticed to a clockmaker. Moved to Lonton. He learned about electromagnetic field theory. Combined clockmaking and electricity to invent a coping machine. Fax machines scan and reproduce documents. Data transmitted as audio signals. Transmits a page every five seconds over telephone lines. Reproduces documents of text or images in seconds. Bain continued to improve his fax machine. Bakewell made a better version that replaced Bain’s pendulums. An Italian developed a machine that became commercially successful around 1861. Competition emerged by 1900, and Elisha Grey created an innovative device in the US.

Steam-Powered Iron Passengers Ships

Isambard Brunel was born in England in 1806. He was educated by his father and school. He apprenticed as a clockmaker. Assisted father Marc with Thames Tunnel. Isambard built bridges and the Great Estern Railroad. Brunel wanted to add steam ships. He invented iron steamships in 1843. Large steam ships transport people and cargo long distances, steam power made their schedules predictable. It used peroellers instead of paddle wheels. It faried lots of passengers at times cheaply. Brunel was renowned throughout England. His ships outperformed rivals. Had grand visions that captured the public’s imagination. Steamship demand increased in 1880a due to immigtation to America. 

Ice Cream Maker

Making ice cream was an labor-intensive process. You had to manually spin and scrape. Nancy Johson invented the hand cranked ice cream maker. Johnson  patented it in 1843. Ice cream: Whipping cream sugar, vanilla extract. Salt lowered the melting point of ice. Ice goes in, outer vat ingredients go in the conister. Blade scrapes the ice cream from the wall. Made the process more efficient. Nancy Johnson sold patent rights.Ice cream store appeared and mass-production facilities emerged by the second half of the 1800s.   

        

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