Pressure: Applications of Newton's Laws
Seat of Nails
PIRA Class: 1K30.15*

Purpose
To observe the dependence that surface area of contact has on applied pressure

Description
Sit on a seat of 16d* nails spaced 1" apart. 

Safety Notes:
Make sure "sitter" has on "tough pants"
-Spray nails with Lysol disinfectant after each use.
-Use the blue cloth for students not wearing long jeans to protect from skin scraps and/or clothing tears.

Equipment
Seat of Nails, large single nail
Support Equipment
LysolÒ disinfectant spray