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DHS09 Bed of Nails

Objective:

-To demonstrate the basic idea of pressure

Apparatus:

  • Bed of Nails (two parts)
  • lab coat
  • 2’x 2′ plywood board
  • maul/sledgehammer
  • cinder block
  • face shield

Method:

Place both parts of the bed of nails end to end. Put on the lab coat. Gently lie down on bed of nails, using hands on the side to put body weight down evenly. the lab coat is not needed in principle, but is used to prevent any tears in clothing, and as an extra precaution to prevent small scratches. To extend the demo, place the plywood board on your chest, and place a cinder block on top. Ask another instructor/student to assist by breaking the cinder block using a maul/sledgehammer. For this step, it is important to wear the face shield to protect from any small cinder block pieces.

Notes:

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