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.
A federal judge ruled that the Trump administration likely violated the reporter's Fifth Amendment rights when it stripped his press credentials earlier this month.
- Acosta will be allowed to return to the White House on Friday.
- The judge described the ruling as narrow, and didn't rule one way or the other on violations of the First Amendment.
- The case is still open, and the administration may choose to appeal the ruling.
Progressive America would be half as big, but twice as populated as its conservative twin.
- America's two political tribes have consolidated into 'red' and 'blue' nations, with seemingly irreconcilable differences.
- Perhaps the best way to stop the infighting is to go for a divorce and give the two nations a country each
- Based on the UN's partition plan for Israel/Palestine, this proposal provides territorial contiguity and sea access to both 'red' and 'blue' America
The definition of a kilogram will now be fixed to Planck's constant, a fundamental part of quantum physics.
- The new definition of a kilogram is based on a physical constant in quantum physics.
- Unlike the current definition of a kilogram, this measurement will never change.
- Scientists also voted to update the definitions of several other measurements in physics.
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