Photonic topological insulators guide light robustly, but not at multiple colors needed for applications like frequency doubling. The authors theoretically demonstrate a broadband nonlinear resonator ...

A deductible is the amount you'll have to pay for medical care at the beginning of your insurance policy. The out-of-pocket max is the most you'll pay for medical expenses in a year. For each policy ...

Clay Halton was a Business Editor at Investopedia and has been working in the finance publishing field for more than five years. He also writes and edits personal finance content, with a focus on ...

Why flu cases are spiking, how AI predicts disease from your sleep, and what surprising biomechanics lie behind woodpeckers’ powerful pecks. At CES 2026, Stevie Wonder offered a simple test for tech.

Learn the benefits and risks of options and how to start trading options Lucas Downey is the co-founder of MoneyFlows, and an Investopedia Academy instructor. Samantha (Sam) Silberstein, CFP®, CSLP®, ...

Chocolate or strawberry? Life or death? We make some choices quickly and automatically, relying on mental shortcuts our brains have developed over the years to guide us in the best course of action.

Understanding these concepts can help you make smarter financial decisions in the long run and day to day. Many, or all, of the products featured on this page are from our advertising partners who ...

Molecular dynamics is a method that uses Newton’s equations of motion to computationally simulate the time evolution of a set of interacting atoms. Such techniques are dependent on a description of ...