News tagged with electron microscope

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Scientists image nanoparticles in action

( —The macroscopic effects of certain nanoparticles on human health have long been clear to the naked eye. What scientists have lacked is the ability to see the detailed movements of individual particles that give ...

dateApr 25, 2013 in Nanophysics
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Salt causes chalk cliffs to collapse

Salt plays a greater role in undermining chalk cliffs than previously thought, say scientists. Until recently, if a chalk cliff collapsed it was blamed on waves eroding its base, or the chalk weakening as it became saturated ...

dateApr 19, 2013 in Earth Sciences
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Snap-proof space tether

( —Space tethers hold intriguing potential for satellite manoeuvring, attitude control and even power generation. But about half of all orbital tether tests have either failed to deploy or snapped, probably due ...

dateApr 02, 2013 in Space Exploration
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