News tagged with electron microscopes

Scientists image nanoparticles in action

(Phys.org) —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 ...

Apr 25, 2013
4.4 / 5 (5) 0 | with audio podcast

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 ...

Apr 19, 2013
4 / 5 (6) 2 | with audio podcast

Nanosuits help small creatures survive a vacuum

(Phys.org) —Scientists use scanning electron microscopes (SEMs) to study tiny structures in small organisms. SEMs can only work in a high vacuum, and exposure to such a vacuum normally causes living things ...

Apr 16, 2013 report
5 / 5 (9) 0 | with audio podcast

Snap-proof space tether

(Phys.org) —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, ...

Apr 02, 2013
5 / 5 (4) 0

Researchers produce ultra-light aerogel

A research team headed by Professor Gao Chao have developed ultra-light aerogel – it breaks the record of the world's lightest material with surprising flexibility and oil-absorption. This progress is published ...

Mar 25, 2013
4.9 / 5 (12) 4