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Lloyd Groff Copeman (December 28, 1881 – July 5, 1956) [1] was an American inventor who devised the first electric stove and the flexible rubber ice cube tray, among other products. He had nearly 700 patents to his name, and he claimed that he could walk into any store and find one of his inventions.
A crampon is a traction device attached to footwear to improve mobility on snow and ice during ice climbing. [1] Besides ice climbing, crampons are also used for secure travel on snow and ice, such as crossing glaciers , snowfields and icefields , ascending snow slopes, and scaling ice-covered rock.
Glacier hiking involves walking on a glacier with special equipment, such as crampons, rope, climbing harness, helmet and ice axe, so that to some degree it resembles mountaineering. Glaciers are found on every continent except for Australia.
A second type of hand-held pole stilts are similar to the first type but end in a handle so the walker has more control and flexibility to move their stilts. Those type of stilts can be very high (more than 4 m or 13 ft under feet). Hand-held string stilts (also known as tin can or bucket stilts) are platforms with strings attached to them.
A kicksled is designed to be used on hard, slippery surfaces like ice or hardpacked snow. To kicksled in deeper, more powdery snow, extra-wide plastic snow runners are attached to the standard, thin runners of the sled. On very smooth, bare ice, the use of traction devices like spiked shoes or crampons improves kicking force.
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Ice cleats are a device, affixed to a shoe or boot, with small studs or spikes underneath. They are used to avoid sliding on slippery surfaces like ice or snow. Ice cleats are attached to footwear with either straps over the heel and toe or a single strip over the foot.
A walking vehicle is a vehicle that moves on legs rather than wheels or tracks. Walking vehicles have been constructed with anywhere from one to more than eight legs. There are many designs for the leg mechanisms of walking machines that provide foot trajectories with different properties. Walking vehicles are classified according to the number ...