Explore the physics of two carts with different masses launched by a spring! In this video, we analyze motion, forces, and energy transfer using real-world examples and clear demonstrations. Learn how ...

Learn how to model the force of a spring step by step in this physics tutorial! 🧲📐 Explore Hooke’s Law, spring constants, and real-world examples while applying calculations to understand how ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Astronomers are rethinking one of cosmology’s biggest mysteries: dark energy. New findings show that evolving dark energy models, tied to ultra-light axion particles, may better fit the universe’s ...

In physics, we have a bunch of constants that are used in models to explain how the world works. These are fixed numbers that we plug into equations along with our variables. For example, the ...

It's fun to think about the fundamental physical constants. These are special values used in our models of the physical universe. They include things like the speed of light, the gravitational ...

Planck's constant reveals the quantum world's fundamental energy levels. It shows how light and matter exist in discrete units (quanta). This constant defines limits to our knowledge of particle ...

In what scientists sometimes call “the restless universe” are a few unchallenged constants that have become the bench marks of basic research. Among them are absolute zero, which represents cold so ...

It appears that we live on the knife-edge, where only the narrowest combination of values for the fundamental constants allow life, and especially conscious life, to arise. When you purchase through ...

This story was updated to add new information. Spring has sprung, bringing warmer days and blooming flowers. Thursday is the first day of spring, or the vernal equinox, in the Northern Hemisphere.

With our clocks already pushed ahead for the start of Daylight Saving Time, it’s almost time to put those winter gloves away and watch the flowers start to bloom, as the first day of spring 2025 ...

At 11:30 one night in May 2024, a graduate student, Chuankun Zhang, saw a signal that physicists have sought for 50 years. As a peak rose from the static on his monitor at the research institute JILA ...