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The Springfree trampoline's design includes the use of glass-reinforced plastic rods articulating below the jumping surface, as opposed to the radiating steel spring coils of a Nissen trampoline. The jumping surface is lowered around 450mm below the jumping surface of a traditional trampoline, and the base's rigidity is derived from a tubular ...
Keith Vivian Alexander is a New Zealand mechanical engineer and inventor. He is a professor of mechanical engineering at the University of Canterbury, in Christchurch, [1] and the inventor of the springfree trampoline.
Vuly released the Thunder trampoline in all markets during 2013, which secured them a US distribution contract with retailer, Toys 'R' Us. [8] Competitor Springfree Trampolines filed a complaint in 2013 with the United States International Trade Commission, for alleged patent infringement upon its soft-edge trampolines. [9]
This data can help a carmaker determine its hiring, investment and production goals. For instance, when setting monthly production targets, a firm will review data on auto sales from the Bureau of ...
Bird flu is forcing farmers to slaughter millions of chickens a month, pushing U.S. egg prices to more than double their cost in the summer of 2023. While it is fatal to a variety of animals ...
Snowfall in parts of the north-central U.S. has been running below average so far this season, but there are a couple of cities that stand out and might be America's most unusual "snow hole". Just ...