Remember that impressive 730 ton tuned mass damper? Well here's another way to keep buildings standing through winds and quakes by using 100,000 gallons of liquid. The liquid tuned mass damper sits atop of the 60-floor, 641-foot-tall south tower of One Rincon Hill in San Fransisco. The momentum built up by the skyscraper's swaying to and fro will naturally move the water in the opposite direction, balancing out the forces at work. Without the damper, the building would more easily succumb to natural forces — and in a city that was nearly demolished by a quake in 1906, those forces can be incredibly strong.
Unfortunately, the area doesn't double as a wave pool for residents of the 60-floor One Rincon Hill.
Click Continue to see a video of the liquid tuned mass damper in action.