Divorce in a one-dimensional world

In everyday objects, there is no left without right or front without back. Just as inseparable seem to be the electron's electric charge and its "spin." But in a strictly one-dimensional quantum world, both quantum properties ...

Barcelona bans older, most polluting cars

Barcelona imposed a ban Thursday on older, more polluting vehicles during most of the day in a bid to reduce air pollution in Spain's second largest city.

Blazar variability

Active galactic nuclei (AGN) are supermassive black holes at the centers of galaxies that are accreting material. These AGN emit jets of charged particles that move at speeds close to that of light, transporting huge amounts ...

Sustainable separation technology makes new applications possible

Membranes are widely used to separate substances from each other, for example in water treatment or kidney dialysis. Membrane technology saves energy and water, and has a small CO2 footprint. Unfortunately, large quantities ...

Nanocontainer ships titan-size gene therapies and drugs into cells

Scientists at Johns Hopkins Medicine report they have created a tiny, nanosize container that can slip inside cells and deliver protein-based medicines and gene therapies of any size—even hefty ones attached to the gene-editing ...

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