News tagged with scanning electron microscope

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

That's the way the droplets adhere

Understanding exactly how droplets and bubbles stick to surfaces—everything from dew on blades of grass to the water droplets that form on condensing coils after steam drives a turbine in a power plant—is ...

Feb 19, 2013
5 / 5 (5) 1 | with audio podcast