Searching for the sand-pile pressure dip

Article Abstract:

A group of physicists believe they have found a new method for explaining why a conical pile of sand exerts its maximum pressure in a ring around the center rather than at the center itself. It appears that main compressive stresses, falling along fixed parallel lines, steer the pile's weight away from the center.

Granular materials, Mechanics, Engineering mechanics

---

Physicists trap photons and count them one by one

Article Abstract:

French scientists have designed an experiment that allows photons to be counted. The photons, from a microwave source, go through a chamber and are individually bombarded by atoms. The results of the experiment were published in the Mar 1996 issue of Physical Review Letters.

Physics, Photon detectors

---

Similar abstracts:

• Abstracts: Seeing the forest for the trees: biologists crane to see the canopy. Getting the goats
• Abstracts: Grad schools ratings rankle. A census in which all Americans count
• Abstracts: Processes affecting the fate of monoaromatic hydrocarbons in an aquifer contaminated by crude oil. Effects of light intensity on the phototoxicity of flouranthene to a benthic macroinvertebrate
• Abstracts: Medical technology transfer and physician-patient conversation. Medical technology and health-care expenditures: the Dutch experience in the period 1970-1990
• Abstracts: Planning for the next flu pandemic. Worm genes imply a master clock. Brighter prospects for the world's coral reefs?

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.