Learn how to calculate when and where two trains will meet! This video walks you through the process of using relative speed and distance to find the exact point and time of intersection. Perfect for ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

Struggling with GPS indoors? Learn how to build a DIY real-time indoor tracking system using BLE and Wi‑Fi triangulation.

It's not uncommon for Missouri drivers to have to maneuver cones, reduce speeds, drive through narrow lanes, or have ...

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from ...

On Earth, knowing the time feels simple. Your phone pings the same second as a GPS satellite and an atomic clock in a lab.

You can measure horsepower at home by timing RPM climbs, calculating wheel speed from tire size and gear ratios, and comparing the results to SAE net specs.

Even worse, the orbit of Mars is elliptical (think of a slight oval rather than a perfect circle), which means that sometimes ...

The passage of time is fundamental to the theory of relativity: how you realize it, how you calculate it, and what influences it,” said Bijunath Patla, a physicist at the National Institute of ...