News
- Humans
Transport emissions sizable, and rising
Almost one-sixth of the carbon dioxide produced by human activity since the beginning of the Industrial Revolution resulted from the transport of goods and people—an emissions fraction that's increasing by the year.
- Physics
Bathtub Optics: Bending light also shifts it sideways
When light bends at an interface, it also shifts depending on its polarization. With animation.
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Positive Signal: Lone protons carry messages between cells
In roundworms, protons carry signals from cells in the intestine to muscle cells, raising the possibility that protons might act as neurotransmitters in mammal brains.
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Seeing Again: Blind fish parents have fry that see
Cross two strains of blind cavefish that have lived in the dark for a million years, and some of their offspring will be able to see.
