For two centuries, engineers have trusted a simple rule to predict how heat flows through solids, from jet-engine blades to ...

Researchers have discovered that not all atoms in a liquid are in motion and that some remain stationary regardless of the ...

Some atoms in a liquid stay fixed even at high temperatures, reshaping how solidification starts and enabling an unusual ...

Phonons are sound particles or quantized vibrations of atoms in solid materials. The Debye model, a theory introduced by physicist Peter Debye in 1912, describes the contribution of phonons to the ...

The use of confocal fluorescence microscopy to image defects in crystalline, porous solids known as metal–organic frameworks enables the relationship between the number of defects and the materials' ...

Molten lava and yogurt and are well-known examples of non-Newtonian fluids, also known as soft solids. A soft solid can act like either a solid or a liquid, based upon the stress that has acted upon ...

Just about every (but not all) solids expand with an increase in temperature. Why? Before going to the answer, let's look at a common model of a solid - the ball and spring model. In this model, solid ...

Theoretical modelling explores the movement of atoms within a liquid nanodroplet of platinum that is confined inside a defect in a carbon support. The colours represent the mobility of the atoms: ...