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Physics and mathematics
Physics and mathematics news and explainers. From quantum mechanics and particle physics to unsolved math problems and new discoveries.
Strong Axioms of Infinity: How Mathematicians Built Numbers Beyond Forever
What happens when you need numbers bigger than infinity itself? A mathematician reveals the elegant axioms that extend beyond ℵ₀.
The Birthday Paradox on Pluto: Why You Need 140 Guests
The birthday paradox takes only 23 people on Earth. On Pluto, with 14,150 possible birthdays, the number jumps to 140.
Hossenfelder: Why Latest Dark Matter Detection Claim Falls Short
Sabine Hossenfelder analyzes a bold claim about detecting dark matter and reveals why the evidence doesn't hold up to scrutiny.
Penrose on Witten's Cosmological Constant Problem and Feynman's Hotel Detective Work
Roger Penrose recalls how Edward Witten sought his approval for a negative cosmological constant, and how Richard Feynman solved a Cold War hotel...
The Graviton Mystery: Why Physics' Most Important Particle Remains Hidden
The particle that should unite quantum mechanics and relativity exists in theory but breaks every attempt to find it.
Why Mathematicians Say the Universe Cannot Be a Simulation
UBC physicists use Godel's incompleteness theorem to argue reality contains truths no algorithm can reach, challenging the simulation hypothesis.
Smudge Attack: Why Repeating a Digit Makes Your Passcode Safer
Your phone's fingerprint smudges can betray your PIN. Presh Talwalkar explains why repeating a digit mathematically increases your passcode security.
Inside the Atom: How Molecules Became Microscopic Particle Colliders
MIT physicists turned radium molecules into tabletop nuclear probes, using electrons as messengers from inside the atom's core.
The Noperthedron: A Shape That Blocks Itself
After 350 years of searching, mathematicians found a polyhedron where no copy can pass through its own tunnel.
Scientists Transform Materials With Light Pulses
Laser pulses can alter hematite's magnetic properties, changing it into something else - at room temperature.
