bobknocker
Greenlighter
- Joined
- Mar 15, 2015
- Messages
- 3
Why does 2ci powder when slowly pushed with a credit card spontaneously form geometric shapes.
Ie: some of the powder under the edge of the card forms into a cube and collapses as the card pushes forward.
Saw this some years back and have been wondering about it lately as I study for exams.
Ie: some of the powder under the edge of the card forms into a cube and collapses as the card pushes forward.
Saw this some years back and have been wondering about it lately as I study for exams.
