23/07/2018

Widespread groundwater contamination risk from chromium

When Erin Brockovich sued a major utility company in the 1990s for contaminating drinking water with hexavalent chromium, a toxic and carcinogenic metal, national attention turned to California. Now researchers have determined ...

Quality control in science

The marketing of research results has become a significant economic factor. Worldwide, the annual turnover of scientific articles alone amounts to 8 billion euros. Unfortunately, this environment also attracts market players ...

How disc galaxies work

Disc galaxies like our own Milky Way, characterized by a flattened disc of stars and gas (often with a central bulge of material as well) have a wide range of masses, spatial extents, and stellar content. Nonetheless all ...

Physicists demonstrate new method to make single photons

Scientists need individual photons for quantum cryptography and quantum computers. Leiden physicists have now experimentally demonstrated a new production method. Publication in Physical Review Letters on July 23rd.

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