News tagged with viscosity

The dance of hot nanoparticles

(PhysOrg.com) -- "Brownian motion is a very old concept," Klaus Kroy tells PhysOrg.com. "The laws explaining it were formulated more than a century ago by Albert Einstein. However, we are finding some intere ...

Sep 08, 2010 feature
4.3 / 5 (17) 2 | with audio podcast

Why cement tends to thicken

Researchers at the ETH Zurich have unraveled the microscopic mechanism behind shear thickening: the increase in viscosity with speed observed for dense particle suspensions under flow. The study has a direct ...

Oct 01, 2013
4 / 5 (4) 5 | with audio podcast

The perfect liquid -- now even more perfect

Ultra hot quark-gluon-plasma, generated by heavy-ion collisions in particle accelerators, is supposed to be the "most perfect fluid" in the world. Previous theories imposed a limit on how "liquid" fluids can ...

Jan 17, 2012
4.9 / 5 (11) 9 | with audio podcast

Liquid water near Europa's surface a rarity

(Phys.org)—Europa, the enigmatic moon of Jupiter, is believed to be home to a subsurface ocean of liquid water. However, future missions to explore Europa's ocean may need to dig deep. Research suggests ...

Sep 25, 2012
4.5 / 5 (8) 22 | with audio podcast