March 1965 Buckminster Fuller Lecture Notes - Page 6 of 6
Bucky at the greenboard demonstrating
how to multiply by “casting out nines.” Nine
is equal to three 3s which is the number of
sides in a triangle . . .
We need to find ways to help men reorient themselves
We need to show what is going on in universe.
Like Casting out nines.
Casting out nines concluded our lecture with Bucky.
The rest of our time with Bucky was spent
experimenting with closest packing of tetrahedrons
and octahedrons (using models folded from IBM
cards or marbles) and designing and building a 150-
foot diameter “kissing” tensegrity dome out of
bamboo. The Viet Nam war was just getting started in
1965; Bucky thought domes might be a “solution.”
How do marbles arrange themselves under different
conditions? In triangles or squares? How would unit
tetrahedrons arrange themselves? How about if we
add some unit octahedrons? What happens when
we have octahedrons and tetrahedrons in a 1 to 4
What if the container was round, square, or a
triangle? Dished or flat?
Marbles tending toward closest packing on a cookie sheet
Design at Southern Illinois University