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Bumpy road shaker
Bumpy road shaker











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In 1960, American Ed Yost invented a propane-powered heating system to solve this problem. This was hazardous and made it hard to control the temperature of the air, and thus the altitude of the balloon. Hot air provides the lift that carries these balloons through the air, and this design was powered by various materials that were burned while the balloon was in flight. This early design was created by French brothers Joseph-Michael and Jacques-Ètienne Montgolfier. The first manned flight of a hot air balloon took place in 1783 in France.

bumpy road shaker

Brakes and tires soon followed, bringing the bike’s evolution to the modern era. This model featured equal-sized wheels and a chain drive. So in 1885, John Kemp Starley (nephew of James Starley) made the ‘safety bike’ that more closely resembles the bike we know and love today. But the four-foot-high seat was too perilous for many to ride. This design was successful in the 1870s and ‘80s and introduced the bicycle to mainstream culture and racing. Later, Eugène Meyer, also French, and James Starley, an Englishman, introduced an oversized front wheel for stability. By this point, they called this wheeled contraption a bicycle, or a “bone shaker” because of its bumpy ride. These French inventors were Pierre Lallement, Pierre Michaux, and Ernest Michaux. Several inventors added to his original design, developing the first pedals for the front wheel. He called this human-powered device a velocipede. Many of the inventions we use every day, and even others we don’t often use, originated in France or were worked on by French inventors.Ī German Baron named Karl von Drais invented the first steerable, two-wheeled contraption in 1817. Humans have been using tools for centuries to make our lives easier. Written by Jasmine Grace, High School Intern













Bumpy road shaker