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A threaded rod, also known as a stud, is a relatively long rod that is threaded on both ends; the thread may extend along the complete length of the rod. [1] They are designed to be used in tension. [2] Threaded rod in bar stock form is often called all-thread (ATR); other names include fully-threaded rod, redi-rod, continuously-threaded rod ...
The electrodes for electrical grounding are often called ground rods and are often made from steel with a copper clad surface – typically 1 to 2 m long and 20 millimetres (0.79 in) in diameter. These are driven vertically into the ground and bonded together with bare copper wire . [ 1 ]
A contemporary estimate stated that the installation of about 25,000 pail closets removed as much as 3,000,000 imperial gallons (14,000,000 L) of urine and accompanying faeces from the city's drains, sewers and rivers. [5] The midden closet was a development of the privy, which had evolved from the primitive "fosse" ditch.
The Harrington rod (or Harrington implant) is a stainless steel surgical device. [1] Historically, this rod was implanted along the spinal column to treat, among other conditions, a lateral or coronal-plane curvature of the spine, or scoliosis. Up to one million people had Harrington rods implanted for scoliosis between the early 1960s and the ...