December 20, 2021• Physics 14, 180 A magnetic-field based method can slow molecular beams that cannot be slowed using other techniques, unlocking the door to […]

## A Numerical Electromagnetic Solver Using Duality

In the previous insights article (How to Use Duality in Computational Electromagnetic Problems), I covered some uniqueness theorems for the Riemann-Silberstein vector, ##F=E+iB##, for time-harmonic […]

## Controlling Phase Transitions in a 2D Model System

December 21, 2021• Physics 14, s162 Modifying surface and boundary features lets researchers control how a 2D model system transitions from a fluid to a […]

## Maximizing Horizontal Range of a Projectile

Introduction A recent homework problem that appeared in the forums was concerned with maximizing the horizontal range of a projectile subject to the launch site […]

## A Record Low for Laser-Cooled Molecules

December 21, 2021• Physics 14, s163 Researchers achieve the lowest temperature yet for laser-cooled molecules trapped in an optical lattice. K. Mehling/University of Colorado Boulder […]

## Tolman Law in a Nutshell

The Tolman law describes how the temperature in a fixed gravitational field depends on the position (see https://arxiv.org/abs/1803.04106 for a pedagogic review). Here I present […]

## How to Find the Electron Starting Block

December 22, 2021• Physics 14, 183 A new technique pinpoints, with picometer resolution, the location from which an emitted electron originates within a molecule. Coming […]

## Computing the Riemann Zeta Function Using Fourier Series

Euler’s amazing identity The mathematician Leonard Euler developed some surprising mathematical formulas involving the number ##pi##. The most famous equation is ##e^{i pi} = -1##, […]

## Physics – New Unstable Nucleus Detected

December 22, 2021• Physics 14, s165 Experimental detection of the unstable nucleus magnesium-18 hints at a weakening of the so-called magic number for the closed […]

## 10 Math Things We All Learnt Wrong At School

The title is admittedly clickbait. Or a joke. Or a provocation. It depends on with whom you speak, or who reads it with which expectation. […]