This experiment demonstrates how water at different temperatures has different densities, creating beautiful layering effects. You'll see how warm and cold water interact and learn about density ...

Create a colorful tower of liquids that stack on top of each other based on their densities. This experiment demonstrates how different liquids have different densities and why some liquids float ...

China’s latest advance with its so‑called artificial sun has pushed fusion plasma into a regime many physicists long treated as off limits, smashing through a density ceiling that had constrained ...