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The Physics of a(n asymmetric) piece of paper

Date:  Thursday, February 28, 2019

Time: 4:00pm

Location: 100 Willamette Hall

Speaker: John Toner, University of Oregon

Abstract:  I’ll describe the theory of inversion-asymmetric tethered membranes (e.g., Christmas wrapping paper). These exhibit a new “double-spiral“ phase not present in symmetric membranes, in which the membrane assumes a universal algebraic spiral shape. This state exhibits a type of infinite thermal expansion coefficient. Like flat tethered membranes, it can also crumple; indeed, the asymmetry can drive the crumpling. In-vitro experiments on lipid-red

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Research from McMorran lab featured in Around-the-O

The UO Physics McMorran lab has created a technique, STEM holography, that sends electrons along two separate paths, one going through a sample and one not. This allows them to measure the delay between them to create a high-resolution image. It provides improved atomic resolution of a sample’s outer structure and unveils previously unseen interfaces between a sample and underlying material.

UO researchers have now shown — using microscopes at the UO, Lawrence Berkeley National Laboratory and Hitachi Ltd. Research and Development Group in Japan — that STEM holography works.

“Using

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Stanley Micklavzina Named an Honorary Doctor in Science at Lund University in Sweden

The physics demonstration room is Stanley Micklavzina’s domain.

It is here where the magic comes together. Lasers, magnets, hoses, wires, glassware and many, many other unidentifiable science-y looking gadgets fill tables and floor-to-ceiling shelves.

Micklavzina puts these items together in different configurations so he and his colleagues in the physics department can best explain how the laws of physics work.

It just so happens that Micklavzina has a knack for making even the most complicated scientific concepts understandable, and that ability has earned him what is to-date the highest

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