now I want one (icosahedron)

[pokerfan]

The diameters of US quarters and pennies are very close to the ratio needed to make a truncated icosahedron, i.e., a soccer ball in the US or a football elsewhere. Copper pennies take the place of the usually black pentagons and quarters take the place of the usually white hexagons, so even the colors work out. This ball was soldered together by Cory Poole.



Puzzle: Work out what it cost before looking at the answer found here: http://blog.makezine.com/archive/2011/08/math-monday-make-a-ball-of-money.html/2

[Ptah]

1. Guessing

$7.62

[Ptah]

3. Damn.

Counted half of the quarters twice.

:blush:

[petronius]

2. Before or after I burn my house down trying to use a soldering iron?

:shrug:

[pokerfan]

4. I don't own an iron big enough for that job

Not a lot of thermal relief on a coin.

[Shagbark Hickory]

7. There's always glue.

Or hot glue if you live life on the edge.

[Shagbark Hickory]

5. Neato. An affordable home craft project.

[pokerfan]

6. see post #2

[Shagbark Hickory]

8. #7

no excuses

[Tuesday Afternoon]

9. picky here

whomever undertakes this project please make either all heads up or tails up. thanks. ;)