Review: Long-overdue upgrades help to close the gap between Apple's entry-level iPhone and its pricier Pro models.

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Bill Rollins Jr., 97, wrote and self-published 'Trisecting an Angle,' to try to share his solution with the world.

A Slovak research team has developed a mathematical model for determining the optimum tilt angle of a solar system ranging from 0° to 90°. Their framework was tested on an experimental setup in ...

For Mr. Santos, math can also inspire ideas about structures that have already been built — a new way to see and appreciate the world. Inspired by this idea, The New York Times created a virtual tour ...

Explore the best travel apps across 10 categories, 33 picks to help you plan, book, navigate, budget, and stay safe on every ...