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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. 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.

4. Arc welding - Wikipedia

   en.wikipedia.org/wiki/Arc_welding

   Arc welding is a welding process that is used to join metal to metal by using electricity to ... Auto darkening welding hood with 90 × 110 mm cartridge and 3.78 × 1 ...

5. 12 Collectible Toys From the 1970s Worth More Than You Think

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

   Inspired by the American stunt performer who captivated audiences with his death-defying motorcycle jumps, this toy from the early ’70s featured a young Knievel in his famous red, white, and ...

6. Americans are exhausted by political news. TV ratings and a ...

   www.aol.com/americans-exhausted-political-news...

   Americans are exhausted by political news. TV ratings and a ...

7. Video shows terrifying rockslide in Colorado that forced ...

   www.aol.com/video-shows-terrifying-rockslide...

   A major rockslide prompted two highways to be shut down in Colorado over the weekend and witnesses captured the frightening moment on video. Highways 96 and 165 from Wetmore to Westcliffe in ...