Physicists exploit self-assembly of small particles to someday create functional structures such as micro-robots from the bottom up. Now they took an important step forward by experimentally realizing joints on the micrometer scale.
Researchers have found that a material which incorporates atomically thin layers of water is able to store and deliver energy much more quickly than the same material that doesn't include the water layers.
Tiny, individual crystals on the underside of a Mexican butterfly's wings give the insect a distinctive green color that allows it to hide from predators. Researchers now have shown for the first time how these crystals might grow.