Camping Knots

Bellrope keyfob

Rock Climbing: How to Belay

The rope used in this video is made of polyester, a synthetic fiber that doesn’t absorb much water, and its strength is not impacted by being wet. The dry rope broke first, because the oil kept it cooler. As it tightened, the cooler temperature prevented the knots from building as much heat from the friction of the knot. Polyester melts at around 490 degrees fahrenheit and starts to lose strength at about 50% of that. Even though the oiled knot is allowed to get tighter, it maintains more streng