What happened in the past when the climate changed?

Once again, humanity might be well served to take heed from a history lesson. When the climate changed, when crops failed and famine threatened, the peoples of ancient Asia responded. They moved. They started growing different ...

Nanocrystals emit light by efficiently 'tunneling' electrons

Using advanced fabrication techniques, engineers at the University of California San Diego have built a nanosized device out of silver crystals that can generate light by efficiently "tunneling" electrons through a tiny barrier. ...

Cell-like nanorobots clear bacteria and toxins from blood

Engineers at the University of California San Diego have developed tiny ultrasound-powered robots that can swim through blood, removing harmful bacteria along with the toxins they produce. These proof-of-concept nanorobots ...

Researchers operate lab-grown heart cells by remote control

Researchers at University of California San Diego School of Medicine and their collaborators have developed a technique that allows them to speed up or slow down human heart cells growing in a dish on command—simply by ...

Virus found to adapt through newly discovered path of evolution

Bucking a central tenet of biology, researchers at the University of California San Diego and their colleagues have discovered evidence for a new path of evolution, and with it a deeper understanding of how quickly organisms ...

Key biological mechanism is disrupted by ocean acidification

A team led by scientists from Scripps Institution of Oceanography at the University of California San Diego and the J. Craig Venter Institute (JCVI) has demonstrated that the excess carbon dioxide added to the atmosphere ...

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