Search results
Results from the WOW.Com Content Network
The benefit of an enclosure is that it keeps jumpers from falling off a trampoline or impacting the frame. [3] [4] Safety net enclosures vary from one manufacturer to another, such as the opening in the net so that jumpers may enter and exit the trampoline. The design of such openings may include: snap/Velcro system, zipper, or overlapping ...
The ground or obstructions on the ground – jumpers would hit as a result of falling off. Alexander's goal was to increase the trampoline's safety by re-engineering the spring technology. In 1999, Alexander released his first prototype utilising glass-reinforced plastic rods, and the first commercial versions began selling in late 2004.
When used in the proper conditions, it allowed people on upper floors of burning buildings an opportunity to jump to safety, usually to ground level. Invented in 1887, the device was used with varying degrees of success during several notable fires in the 20th century. Due to advances in firefighting technology, it became obsolete by the 1980s.
A mini-trampoline (also known as a rebounder, trampette, jogging trampoline, or exercise trampoline) is a type of trampoline less than 1 metre (3 ft 3 in) in diameter and about 30 centimetres (12 in) off the ground, often kept indoors and used as part of a physical fitness regime.
The bounce of rebounders, or mini trampolines, also takes some of the pounding pressure off of joints, which may minimize overuse injuries from activities such as running or jogging."
A simple design is a manhole that allows a sanitary worker to open and close a value from the ground level to perform water filling and flushing operations. Water source for flushing manholes can come from potable water, tidal water, or water from clarifiers of sewage treatment plants [ 1 ] [ 29 ]
Trampolining or trampoline gymnastics [1] is a competitive Olympic sport in which athletes perform acrobatics while bouncing on a trampoline. [2] In competition, these can include simple jumps in the straight, pike, tuck, or straddle position to more complex combinations of forward and/or backward somersaults and twists.
Nissen set up a manufacturing plant for his company in England in 1956 headed up by Ted Blake an English trampoline pioneer, first in Hainault then Romford and finally Brentwood, Essex by the mid-1960s, and manufactured trampolines there for many years. Brentwood still has a thriving trampolining community but no longer a local factory.