Researchers have come up with a reason why sand grains can build up electrical charges as they collide with one another -- sometimes to the point of creating lightning during dust storms and volcanic eruptions.
Researchers have come up with a reason why sand grains can build up electrical charges as they collide with one another -- sometimes to the point of creating lightning during dust storms and volcanic eruptions. A paper in the upcoming issue of the journal Nature Physics says that particles may transfer their charge vertically during a smashup, so that positive charges go down, while negative charges go up. The findings could have implications for a wide variety of problems, from the electrical charge emitted by a helicopter's takeoff to the adhesion of dust to solar panels on the Mars rover.
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China's Chang'e 4 biosphere experiment marks a first for humankind.
- China's Chang'e 4 lunar lander touched down on the far side of the moon on January 3.
- In addition to a lunar rover, the lander carried a biosphere experiment that contains five sets of plants and some insects.
- The experiment is designed to test how astronauts might someday grow plants in space to sustain long-term settlements.
Groundbreaking neuroscience confirms what Sigmund Freud first theorized.
Arranged marriages and Western romantic practices have more in common than we might think.
In his book In Praise of Love (2009), the French communist philosopher Alain Badiou attacks the notion of 'risk-free love', which he sees written in the commercial language of dating services that promise their customers 'love, without falling in love'.
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