Pour some milk in a dish (whole milk works best, but honestly, use whatever’s not expired), drop in some food coloring, then touch it with a dish soap-dipped cotton swab. The colors will scatter like ...

What looks like magic is often just a rule of physics or chemistry doing its job. Invisible ink turning brown, colours swirling on milk, water climbing uphill — it all feels like sorcery until you ...

Just over a week ago, European physicists announced they had measured the strength of gravity on the smallest scale ever. In a clever tabletop experiment, researchers at Leiden University in the ...