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Evolution of bicycle. Outline of the lesson. Development of bicycle Beneficial uses Diagram of modern bicycle Types of bicycles. 1817 Draisinne (hobby). First bike ever invented by Baron Karl Drais von Sauerbronn Made of wood

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Presentation Transcript
outline of the lesson
Outline of the lesson
  • Development of bicycle
  • Beneficial uses
  • Diagram of modern bicycle
  • Types of bicycles
1817 draisinne hobby
1817 Draisinne (hobby)
  • First bike ever invented by Baron Karl Drais von Sauerbronn
  • Made of wood
  • Problems: Could not steer the bicycle, had to walk since no pedals
1861 velocipede
1861 Velocipede
  • Wheels are two different sizes
  • Improvements: Has pedals on front wheel, harder to break
  • Problems: Heavy, hard to steer, Not fast, requires a lot of energy
1870 penny farthing bicycle
1870 Penny Farthing bicycle
  • Used metal and rubber and that made them lighter than previous design.
  • Improvements: Hard to break and lighter.
  • Problem: Dangerous
slide6
1890
  • First air filled tires
  • Improvements: New and better bicycle design, therefore less dangerous
slide7
1900
  • Bikes become more popular and preferable as a transportation tool
beneficial reasons
Beneficial reasons
  • It's cheaper
  • It reduces pollution and energy use
  • You'll get exercise on your way to your destination
types of modern bicycles
Types of modern bicycles
  • Tricycle, mountain, racing, BMX, tandem
question
Question.
  • Why are people working on redesigning bikes when the one we have work?
conclusion
Conclusion
  • Bikes have been evolved through the past 200 years.
  • Redesigning as new problems interfered with the daily involvements of bicycles with individuals
  • Forcing them to change the design for their own needs.