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2. Welding helmet - Wikipedia

   en.wikipedia.org/wiki/Welding_helmet

   Speedglas welding helmet. The modern welding helmet used today was first introduced in 1937 by Willson Products. [5] In 1981, Swedish manufacturer Hornell International (now owned by 3M [6]) introduced an LCD electronic shutter that darkens automatically when sensors detect the bright welding arc, [7] the Speedglas Auto-Darkening Filter. With ...

3. Arc welding - Wikipedia

   en.wikipedia.org/wiki/Arc_welding

   Auto darkening welding hood with 90 × 110 mm cartridge and 3.78 × 1.85 in viewing area. Exposure to the brightness of the weld area leads to a condition called arc eye in which ultraviolet light causes inflammation of the cornea and can burn the retinas of the eyes.

4. Photokeratitis - Wikipedia

   en.wikipedia.org/wiki/Photokeratitis

   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. Photokeratitis is akin to a sunburn of the cornea and conjunctiva.

5. Federal Reserve cuts its key rate by a quarter-point but ...

   www.aol.com/federal-set-cut-key-rate-043226813.html

   The Federal Reserve cut its key interest rate Wednesday by a quarter-point — its third cut this year — but also signaled that it expects to reduce rates more slowly next year than it ...

6. Flux-cored arc welding - Wikipedia

   en.wikipedia.org/wiki/Flux-cored_arc_welding

   Flux-cored arc welding (FCAW or FCA) is a semi-automatic or automatic arc welding process. FCAW requires a continuously-fed consumable tubular electrode containing a flux and a constant- voltage or, less commonly, a constant- current welding power supply .

7. 12 Collectible Toys From the 1970s Worth More Than You Think

   www.aol.com/12-collectible-toys-1970s-worth...

   DON EMMERT/AFP via Getty ImagesThe 1970s introduced a plethora of toys that have evolved from childhood playthings to cherished collectibles that defined a generation. From action figures and ...