The Geodesic Dome

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The Geodesic Dome

• Geo (earth)
• Desic (divided)

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Geodesic Domes are energy and material efficient
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Geodesic Domes can span large interior areas
Notice that there are NO interior support columns
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Discovered by Buckminster Fuller
Bucky Fuller in front of Casa Manana Theater in
Fort Worth Texas
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Complicated Math?

• The geodesic dome ratio took two years to
  calculate without a computer.

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Simple Directions!
Find an existing Geodesic ratio and create
triangles.
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Use any material
Warning! Food will melt!
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Which ratio do I use?
Radius 30 cm                                 
                                                  
        
To build a 2V Dome with a radius of 30cm 35 Struts 18.54 cm each 30 Struts 16.4 cm each   To build a 3V 5/8 Dome with a radius of 30 cm 30 Struts 10.46 cm each 55 Struts 12.11 cm each 80 Struts 12.37 cm each   To build a 4V Dome with a radius of 30 cm requires 30 Struts 7.6 cm each 30 Struts 8.86 cm each 60 Struts 8.84 cm each 70 Struts 9.39 cm each 30 Struts 9.75 cm each 30 Struts 8.96 cm each
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Kit homes are not a new Idea
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Square houses have natural fatal flaws
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Domes can range from very small
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To very big
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The dome at Epcot has been through MANY storms.
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More triangles mean more strength and stability

• These two designs are filed with the United
  States Patent office.

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Geodesics are more common than you might think.
South pole research station Pop-up tent Dopplar
weather radar Football (yes, this is called a
football)
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Your Turn!

• Research, design and build a Geodesic Dome.
• You may use any dimensions and any type of
  material for construction.
• You must turn in the dome and a data sheet
  showing which dome ratio you used along with all
  math steps.
• Also show the predicted and the actual dimensions
  of your dome.