Ye sit does. But since people weren’t there to hear it, doesn’t mean that it didn’t make a sound.
Testing the electrical resistance of different materials. it is the answer
Scientist judge each others work based mostly on how creative it is.
Guardrail systems must be capable of withstanding at least 200 pounds of force applied within 2 inches of the top edge, in any direction and at any point along the edge, and without causing the top edge of the guardrail to deflect downward to a height less than 39 inches above the walking/working level.
