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Photokeratitis or ultraviolet keratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ultraviolet (UV) rays from either natural (e.g. intense direct or reflected sunlight) or artificial (e.g. the electric arc during welding) sources.
Additionally, the brightness of the weld area can lead to a condition called arc eye or flash burn, in which ultraviolet light causes inflammation of the cornea and can burn the retinas of the eyes. Welding helmets with dark face plates are worn to prevent this exposure, and in recent years, new helmet models have been produced that feature a ...
Spinach puffs are a puff pastry snack recipe with spinach, cream cheese, feta, shallot, garlic, dill, and lemon zest. Serve them hot or at room temperature. Delish 2 hours ago
Sparks from spot welding robot. Arc welding uses a low voltage and high current electric arc between an electrode and the base material to melt the metals at the welding point, which often creates sparks. To reduce the risk of burns, welders wear heavy leather gloves and long sleeve jackets to avoid exposure to extreme heat, flames, and sparks.
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As he made his way home from the clifftop in Bournemouth, he said he saw a man dressed in dark clothing with a hood. Mr Priddle said: "[It was] very concerning for my own safety. He seemed not a ...
South Africa was building a defendable total against Sri Lanka as it reached 191-3 in its second innings and a lead of 221 runs on day three Saturday of the second test. Aiden Markram's 55 moved ...
Post weld heat treatment (PWHT) is a controlled process in which a material that has been welded is reheated to a temperature below its lower critical transformation temperature, and then it is held at that temperature for a specified amount of time. [1]