History Lesson #40

  1. Electromechanical Relay
  2. Revolver
  3. Morse Code
  4. Circuit Breaker

Electromechanical Relay

Joseph Henry had studied electromagnetic properties for a while, and he used this knowledge to invent the first relay. The Electromechanical Relay increased the power of an electric current, and allowed telegrams to travel much farther than just a few miles. Now you could have a control room with a bunch of switches, and have the current turn on and off the appliances miles away if necessary.

Revolver

Texas history chart:

  • Texas is unrelated to any European power, before America is discovered.

  • Spain claims Texas as their territory after America is discovered.

  • Mexico breaks away from Spain, bringing Texas with it.

  • Texas breaks away from Mexico and becomes a free country as the Republic of Texas; however, Mexico refused to accept that Texas had broken away, and this later sparked the Mexican-American war.

  • The United States of America adopts Texas as the 28th state, sparking the Mexican-American war, because Mexico still considered Texas as their own territory.

Samuel Colt invented the revolver with inspiration from how the steering wheel on a ship worked. (His father had sent him to sea after he dropped out of school.) The revolver could shoot 6 bullets without a reload, and a new bullet was invented that could kill a man in one shoot. Colt had marketing talent. He got the Ottoman and the Russian Empires, which were going to war against each other, to buy his guns by saying that the other was already buying some, even if that were not the case. He got the Texas rangers to buy his guns in the Mexican-American war. The revolver became the foundation of the modern firearms industry, and led to pistols and other improvements.

Morse Code

Samuel Morse grew up and became a painter. While painting the picture of a french man away from home, his wife suddenly got ill and died, before he could get back home to say goodbye. His father’s letter had not come soon enough. So that was his spark for the telegraph with which came Morse code. Morse code makes letters into dots and dashes, which can be translated as clicks on a telegraph or wireless, or as flashes on a light. The radio, telephone, and internet are all results of the telegraph and Morse code.

Circuit Breaker

Charles Grafton Page had an interest in electricity from a young age. This got him involved in electromagnetism, which led him to invent the circuit breaker. If a problem with the electricity supply made too much power go into the appliance, it would probably break. However, the circuit breaker stops the current before the appliance can break. Thomas Edison improved Page’s model and invented the modern circuit breaker.