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Partitioning by collision

An ensemble consisting of a binary mixture of particles of equal size can partition itself into its component fractions - provided that the two species differ in their diffusion constants.

date20 hours ago in General Physics
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Long-lived traveling particles to be tracked

Unseen by the human eye are plentiful microscopic particles, small but mighty polycyclic aromatic hydrocarbons, or PAHs, constantly emitted into the air from a variety of combustion sources. Power plants, forest and brush ...

dateFeb 02, 2016 in Earth Sciences
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The quantum fridge

When cold milk is poured into a hot cup of tea, a temperature equilibrium is reached very quickly. The milk droplets and the tea particles interact, and after a few moments they all have the same average energy. This process ...

dateFeb 01, 2016 in Quantum Physics
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Heliophysics CubeSat to launch on NASA's SLS

Just a bit bigger than a box of cereal, one of the first CubeSats to travel in interplanetary space will be NASA's miniature space science station, dedicated to studying the dynamic particles and magnetic fields that stream ...

dateFeb 02, 2016 in Space Exploration
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