Tensile stress is the primary force acting on threaded fasteners. To know what type of fastener you need you should understand how bolts are rated and what causes them to break. This video covers: ultimate tensile strength, yield strength, tensile stress area, plastic and elastic deformation, proof load, ductility and classification of metal fasteners.
Straw Mat Ball RUN
Played: 1 time
First appeared: Ep 76 (Series 4 Episode 10) ¦ Last appeared: Ep 76 (Series 4 Episode 10)
The contestant has to make their way up a steep hill while avoiding giant nuts that are being rolled down towards them.
To make things harder, the contestants are wrapped in padding and a straw mat to make it difficult to move very easily. The hill is also covered in thick foam, which makes it harder to climb.
If a contestant manages to make it into the red goal area at the top of the hill they win. But if they end up rolling down the hill, after getting hit by a nut or just by losing balance, they lose.
Getting hit by a nut doesn’t automatically mean a contestant has lost, but it’s likely it will knock them off of their feet anyway.
Archival Footage: Episode 76 (Friday, January 22. 1988) (Series 4 Episode 10)