Brown University

Experiments inform study of crowd motion

What must the staid-faced University luminaries in those portraits around Sayles Hall have thought while they watched this scene play out for four days last week? Over and over, two to 20 young men and women ...

dateJul 27, 2012 in Mathematics
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A typo in the Declaration of Independence?

Dissemination of public documents was slow and labor-intensive in 1776. It’s too late to know for sure, but it’s interesting to speculate why a colonial printer — hurried, perhaps carried away ...

dateJul 04, 2012 in Other
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Recreational fishing causes Cape Cod salt marsh die-off

Recreational fishing is a major contributor to the rapid decline of important salt marshes along Cape Cod because it strips top predators such as striped bass, blue crabs, and smooth dogfish out of the ecosystem, according ...

dateJun 11, 2012 in Ecology
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A SMART(er) way to track influenza

In April 2009, the world took notice as reports surfaced of a virus in Mexico that had mutated from pigs and was being passed from human to human. The H1N1 "swine flu," as the virus was named, circulated worldwide, ...

dateJun 11, 2012 in Analytical Chemistry
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How ion bombardment reshapes metal surfaces

To modify a metal surface at the scale of atoms and molecules — for instance to refine the wiring in computer chips or the reflective silver in optical components — manufacturers shower it with ions. ...

dateMay 23, 2012 in Nanophysics
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Single nanomaterial yields many laser colors

Red, green, and blue lasers have become small and cheap enough to find their way into products ranging from BluRay DVD players to fancy pens, but each color is made with different semiconductor materials and ...

dateApr 29, 2012 in Nanophysics
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