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The Rotary Snowplow. - A Canadian Invention !. WHO?. Dr. J.W. Elliott, a Toronto dentist, designed the first rotary snowplough. Orange Jull, another Canadian, improved Elliott’s design. WHEN?. The first rotary snowplough was designed in 1869.
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The Rotary Snowplow - A Canadian Invention !
WHO? • Dr. J.W. Elliott, a Toronto dentist, designed the first rotary snowplough. • Orange Jull, another Canadian, improved Elliott’s design.
WHEN? • The first rotary snowplough was designed in 1869. • The second model was produced between 1890 and 1892.
WHERE? • Canada • The rotary was invented it in Toronto, Ontario.
WHY? • There have too much snow. • In winter, people should to clean snow by their hands, they’re too tired. • Many people died in cleaning up the snow.
HOW? • The first rail plough was invented by steel • In 1869, a man called Elliot designed the first rotary snowplough • Orange Jull improved Elliott’s design later, it contained several pivoting steel plates, it’s wheel in either direction at up to 400 rpm. It’s speed can up to 16 kmh
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Why is it important to record the source of your information?
How did the invention that you investigated affect or change motion?