Safety, Automobiles, Civil Engineering
That dependable friend you never think about but is always there when you need them. That watchful buddy that stops you before you walk right off of a cliff. That protective pal that keeps out of control cars from skidding across 3 lanes of traffic going the opposite direction. When was the last time you thought about highway guardrails? Whether they're short concrete walls on the side of the freeway, short metal fences on the edge of the highway, or metal pegs in the ground, guardrails are the unsung heroes of the world. The way those metal pegs are spaced out, so that people and bikes can easily pass through them but a car can't? Absolute genius. Keep up the good work, highway guardrails!