Every time you check the time on your phone, make an online transaction, or use a navigation app, you are depending on the ...

Hailed as one of the 50 most important women in science, she found ways to study rare radioactive isotopes and advanced the ...

For example, the atomic number of chlorine is 17. Every chlorine atom has 17 protons and 17 electrons. It has 17 positive charges and 17 negative charges, meaning that it is neutral overall. Atoms of ...

In the middle of the 20th century, the atom was all the rage. Radiation was the shiny new solution to everything while being ...

This article explores how our understanding of the universe has evolved—from the scale of everyday experience down to the ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

In 1913, Niels Bohr revised Rutherford's model by suggesting that the electrons orbited the nucleus in different energy levels or at specific distances from the nucleus. By doing this, he was able to ...

Scientists may have finally uncovered the mystery behind ultra-high-energy cosmic rays — the most powerful particles known in ...

The Nobel Prize in Physics for 2025 honors scaled-up quantum physics—while sidestepping controversies swirling around quantum ...

On Tuesday the field of quantum mechanics received a thoughtful 100th-birthday present from the Royal Swedish Academy of ...

A hidden world of quantum metrologists ensure that everyday devices perform safely and correctly, but their work is never done ...

Cold atoms could also potentially measure much lower vacuum pressures than ion gauges can. The current lowest pressure they’ve reliably measured is around 10 -9 Pa, and NIST scientists are working on ...