Transcript The Geodesic Dome - Peaster Independent School District

The Geodesic
Dome
Geo (earth)
Desic (divided)
Geodesic Domes are energy
and material efficient
Geodesic Domes can span
large interior areas
Notice that
there are NO
interior support
columns
Discovered by
Buckminster Fuller
‘Bucky’ Fuller in front of
Casa Manana Theater in
Fort Worth Texas
Complicated Math?
The geodesic dome
ratio took two years
to calculate without a
computer.
Simple Directions!
Find an existing Geodesic ratio and
create triangles.
Use any material
Warning! Food will melt!
Which ratio do I use?
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
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
80 Struts 12.37 cm
each
30 Struts 9.75 cm each
30 Struts 8.96 cm each
Kit homes are not a new Idea
‘Square’ houses have
natural fatal flaws
Domes can range from
very small…
To very big
The
dome at
Epcot
has
been
through
MANY
storms.
More triangles mean more
strength and stability
 These two designs are filed with the
United States Patent office.
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)
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.