physics

NASA Scientists Find The First Interstellar Space Particles

NASA has identified for the first time seven rare, microscopic interstellar dust particles — that date to the beginnings of the solar system. The particles have been identified amongst samples obtained by NASA’s Stardust spacecraft, which returned to Earth back in 2006.


New Li-On Material Survives 30 Times The Charges Of Current Batteries

Aside from capacity, the worst thing about batteries is that they degrade with time, holding less power with every charge. But now scientists have developed a lithium ion material that can endure 30 times as many charge cycles as current cells.


Can Atoms Ever Touch?

There’s a very commonly held view that atoms can never touch: bring them together slowly, and you reach a point where they begin to repel. But in this video Professor Philip Moriarty explains that really isn’t the case.


You're Looking At The Changing State Of A Qubit Over Time

Briefly: This may look like some kind of rainbow top hat, but in fact you’re looking at the changing state of quantum bit — a qubit — over time. This experiment helps predict how quantum systems evolve, and may help us steer and control them more effectively in the future.[Nature via New Scientist]


Forget What Your Teacher Said: Mass And Weight Are The Same

At high school, your physics teacher probably drummed it into you that mass and weight are completely different things — but actually, they were wrong all along. In this video, Professor Mike Merrifield from the University of Nottingham — along with Albert Einstein and Isaac Newton — explains the equivalence principle. It says that mass and weight are, really, the same thing.


Why Is The Speed Of Darkness Faster Than The Speed Of Light?

Video: Michael Stevens explains why darkness moves faster than light in this new episode of Vsauce. I usually find these explainers interesting because they delve not only into multiple science disciplines but often they touch philosophical questions too. This one really blew my mind.


A New Pure Lithium Battery Could Double Your Phone's Life

Virtually all of your gadgets tote lithium ion batteries — but while they’re the best you can hope for at the moment, new engineering means that pure lithium batteries are now a possibility, and they could double the life of your phone.


If You Fold A Paper In Half 103 Times It Will Get As Thick As The Universe

The myth: You can’t fold a paper in half more than eight times.* The reality: Given a paper large enough — and enough energy — you can fold it as many times as you want. The problem: If you fold it 103 times, the thickness of your paper will be larger than the observable Universe: 93 billion light-years. Seriously.


How Quantum Mechanics Explains Global Warming

We all know that carbon dioxide is contributing to the warming of our planet, but… how, exactly? In this video, Lieven Scheire explains how quantum mechanics holds the answer.


This Machine Generates Electricity From Humidity

This silver cube looks like it belongs on a spaceship — but actually it’s way more exciting than that. In fact, it can create electricity from humidity, as water condenses on its internal surfaces.