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Tyndall's bar breaker is a physical demonstration experiment to demonstrate the forces created by thermal expansion and shrinkage. It was demonstrated 1867 by the Irish scientist John Tyndall in his Christmas lectures for a "juvenile auditory".
In angling, a spreader bar, also known as a tracker bird, wide tracker, offset spreader bar, and a side-tracker bar, is a tool used by sportfishermen for catching tuna. [ 1 ] The premise of a spreader bar is that it uses a collection of "bait" lures which resemble small squid and which are spread out and hanging from a metal bar which is ...
In electric power distribution, a busbar (also bus bar) is a metallic strip or bar, typically housed inside switchgear, panel boards, and busway enclosures for local high current power distribution. They are also used to connect high voltage equipment at electrical switchyards, and low-voltage equipment in battery banks .
Obatzda – a Bavarian cheese spread, prepared by mixing two thirds aged soft cheese, usually Camembert and one third butter; Palm butter – a spread made of palm oil designed to imitate dairy butter; Paprykarz szczeciński – Polish spread made from ground fish, rice, tomato paste, vegetable oil, onion, salt and spices; Pâté [17] Chopped ...
Drawings from 1870 of a hollow point express rifle bullet before firing (1, 2) and after recovery from the game animal (3, 4, 5), showing expansion and fragmentation Leg wound by an expanding bullet. Expanding bullets, also known colloquially as dumdum bullets, are projectiles designed to expand on impact. This causes the bullet to increase in ...
These cereal bars are a grown-up twist on a childhood favorite. Lighter Side. Lighter Side. NY Post. NYC apartment that's just feet from subway platform rents for $4K-a-month. Lighter Side.
This drove an equally rapid expansion of new television stations. Based on the same calculations used during the war, the Federal Communications Commission (FCC) arranged frequency allocations for the new VHF and UHF channels to avoid interference between stations. To everyone's surprise, interference was common, even between widely separated ...
In the Bronze Age more sophisticated spring devices were used, as shown by the spread of tweezers in many cultures. Ctesibius of Alexandria developed a method for making springs out of an alloy of bronze with an increased proportion of tin, hardened by hammering after it was cast. Coiled springs appeared early in the 15th century, [2] in door ...