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A rail spike (also known as a cut spike or crampon) is a large nail with an offset head that is used to secure rails and base plates to railroad ties (sleepers) in the track. Robert Livingston Stevens is credited with the invention of the rail spike, [6] the first recorded use of which was in 1832. [7]
1960s-era pitons, including: knifeblades, lost arrows, bugaboos, ring angles, and bongs. A piton (/ ˈ p iː t ɒ n /; also called pin or peg) in big wall climbing and in aid climbing is a metal spike (usually steel) that is driven into a crack or seam in the climbing surface using a climbing hammer, and which acts as an anchor for protecting the climber from falling or to assist progress in ...
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.
A A-grade Also aid climbing grade. The technical difficulty grading system for aid climbing (both for "original" and an adapted version for "new wave"), which goes: A0, A1, A2, A3, A4, A5 and up to A6 (for "new wave"). See C-grade. Abalakov thread Abalakov thread Also V-thread. A type of anchor used in abseiling especially in winter and in ice climbing. ABD Also assisted braking device. A term ...
Originally, spikes were made out of metal due to their strength and hardness. However, German engineers began experimenting with canvas and rubber spikes during the World War, in part to help find a more lightweight material. Finally, in the modern era, the most common type of track spike is made of plastic, due to being both cheap and easily ...
Police added, "Please plan for these conditions if you are going to recreate in the area it is not safe to hike without crampons or micro spikes on these [icy] trails." Read the original article ...
A board game published under the name The Last Spike had the financing and construction of a trans-Canadian railway as its object. [12] A previous version (before 2023) of the Canadian passport features the last spike (French: le dernier crampon) on pages 10 and 11, along with the Ross photograph of Smith.
US economic output hit its highest level in nearly three years to close out 2024, according to the latest data from S&P Global. S&P Global's flash US composite PMI, which captures activity in both ...
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