Solids, liquids and gases. In a solid like this brick, the particles are regularly arranged touching their neighbours and move only by vibrating. This explains why solids have a fixed shape. In a ...

The liquid-gas interface trapped on underwater solid structures has multiple excellent properties, such as drag reduction, anti-biofouling, and anti-corrosion, and that is why it has a promising ...

Researchers report that the way a tissue's cells are arranged can serve as a fingerprint for the tissue's 'phase' -- whether it is more like a solid, liquid, or gas. For example, tumors that are more ...

Nigel Pereira on two inventions that seem to be mind-boggling as they seem to change the natural state of the resource in question. With deforestation and the burning of fossil fuels now widely ...

Two years ago, Ars was invited to Huntsville’s Marshall Space Flight Center to watch a team of engineers from NASA and Aerojet Rocketdyne fire up some 50-year old rocket components—specifically, the ...

Imagine you're eating dinner. You try to pour some ranch dressing onto your plate to dip your veggies into. You tip the container upside down, but nothing comes out. Seems like a solid. So you shake ...