HIST 1301 Lecture Notes - Lecture 12: Rotary Snowplow, Reginald Fessenden, Sandford Fleming
Document Summary
Significance: helped in the process of weather forecasting and train travel. It replaced various prime meridians with one prime meridian. This solidified the concepts of halving the globe into an eastern and western hemisphere. Inventor: alexander graham bell and canadian casey baldwin. Significance: the hydrofoil elements developed enough lift to raise the hull out of the water which greatly reduced hull drag. This resulted in efficiency of operation in terms of fuel consumption. Significance: it became possible to transmit audio using radio signals. Thus expanded communication by making it efficient and traveling a wide range. Significance: rotary snowplow was devised to remove snow from railroads tracks which enabled the railroads to travel faster in harsh conditions and made the journey safer by preventing accidents. Significance: the basic design used an electrically-operated blower to provide comfort to travelers during cold weather. It was technological innovation that helped the sale of automobiles.
