Get a great deal on jewelry for Valentine's Day

Get a great deal on jewelry for Valentine's Day
But because pure gold is soft, t's usually mixed with other metals for durability. For example, 18-karat jewelry is 75 percent gold mixed with a base metal such as nickel or zinc. You will see a "karat mark" stampled on most gold jewelry, although it's …
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5 reasons to skip taking vitamin C for colds
Sniffles, sneezes and an achy head are a good indicator that you've caught a cold—and nobody wants to be sick during the holidays. But unfortunately, chomping on megadoses of vitamin C, aka ascorbic acid, or sipping yet another glass of vitamin C mix …
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IT Futurist: Metal-Air Battery Technology Evolves
Metal-air batteries are not new, Liu says. Hearing aid batteries, for example, operate on a zinc-air system, but currently are not rechargeable. ARPA-E is providing funding for numerous rechargeable metal-air battery projects, including Narayan's work …
Read more on EdTech Magazine: Focus on Higher Education




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