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Solid-state lasers are lasers made from crystalline materials. The very first laser used ruby as a solid-state active region in 1960, and there are now hundreds of known alternatives. The most common ...

Marcus Freeman talks about the "500-level course" that defensive coordinator Al Golden runs. When former Irish defensive players such as JD Bertrand, Javontae Jean-Baptiste and Marist Liufau came back ...

Invest in stocks or mutual funds depending on research preference and time availability. Allocate assets based on age, investing more in stocks when younger and in bonds as you age. Open a brokerage ...