I learned about four inventions this week and they were dynamite, the chuckwagon, the typewriter, and ticker tape. First, I learned about dynamite. Alfred Nobel, born in 1833 in Sweden, helped his father make weapons for the Russian Tsar and studied chemistry in Paris. Dynamite is a very powerful explosive that stabilizes the nitroglycerin. It became a weapon for terrorism in the 1880s and led to the creation of the peace prize. 

Second, I learned about the chuckwagon. Charles Goodnight, born in Illinois in 1836, joined the confederacy with Loving and then they drove cows from Texas. A chuckwagon is a horse-drawn wagon operating as a mobile field kitchen and frequently covered with a white tarp. Cattle towns appeared along the trails and gave rise to the marshals and sheriffs.

Third, I learned about the typewriter. Christopher Latnam Sholes, born in Pennsylvania in 1819, tried inventing a typesetting machine and desired to easily print page numbers. Typewriters imprint neat writing into paper and later models reduced jamming. The QWERTY keyboard appeared and people entered the workforce as typists.

Finally, I learned about ticker tape. Ticker tape was invented in 1867 by Edward Carahn. Ticker tape is a narrow strip of paper with stock information printed on it and provides real time price updates. Ticker tape is obsolete today and ticker tape helped create the ticker tape parade.