Wooden Nickels
![Stacked Wooden Nickels](/media/libraries/college-of-science-and-engineering/physics/images/demo-images/wdnick_2a.jpg)
PIRA 1F20.34
The nickel on the bottom of a stack of wooden nickels can be knocked out if it is struck quickly with a ruler. Be aware that the ruler should be thinner than the nickels.
Common Searches
The nickel on the bottom of a stack of wooden nickels can be knocked out if it is struck quickly with a ruler. Be aware that the ruler should be thinner than the nickels.