Science & Technology

The slow rebound of the bedrock as ice melts can be used to weigh the Antarctic ice sheet. Calibrating rebound will make it possible to measure how much mass the has lost since the ice sheets reached their maximum extent more than 20,000 years ago and how much it is currently losing. Two National Science Foundation grants will fund the installation of seismographs to calibrate crucial parts of the Antarctic ice-weighing machine.

Legal scholar, author and political activist Lawrence Lessig, JD, is such a popular speaker that it’s challenging to get him for one lecture, so Washington University is doubly fortunate to present an Assembly Series talk by Lessig twice in one day – Thursday, Oct. 10 — on two different subjects.

Scientific discoveries in understanding how body structures change and advance over time are relatively recent and are the result of scientific trailblazers working in the field of evolutionary developmental biology (evo-devo). One of those pioneers, Brian K. Hall, will visit Washington University and give an Assembly Series lecture at 4 p.m. Monday, October 7 in McDonnell Hall Room 162.

In Missouri, about a third of the ponds are infected with chytrid, the notorious skin fungus that has sickened and killed amphibians in other parts of the world. Why only a third, Washington University in St. Louis scientists wondered? A comprehensive study of the the ponds suggests there are hidden constraints on the survival of the fungus. One possibility is that invertebrates present in some ponds but not others allow the fungus to persist by acting as alternative hosts or reservoirs.

The public discussion of global warming can feel very stuck at times. An innovative course at Washington University in St. Louis offers a way forward by making available the efforts of historians to integrate natural history and human history over the past 40 years. Taught by Venus Bivar, PhD, assistant professor of history in Arts & Sciences, it is an introduction to a discipline called environmental history, with a special focus on climate change.

Andrew Brimer and Abigail Cohen, May graduates from the School of Engineering & Applied Science at Washington University in St. Louis and co-founders of the med-tech startup Sparo Labs, have won the $150,000 CIMIT Student Technology Prize for Primary Care, bringing their total competition winnings to more than $275,000.

More than 1,000 science researchers from around the world descended upon St. Louis during the second week of August for what Provost Holden Thorp, PhD, wittingly referred to as “Photo-palooza” for the gathering’s focus on photosynthesis research. Washington University’s International Center for Advanced Renewable Energy and Sustainability (I-CARES) served as host to the 11th Workshop on Cyanobacteria and the Photosynthetic Antenna Research Center (PARC) hosted the Light Harvesting Satellite Meeting 2013.

Philip Bayly, PhD, the Lilyan and E. Lisle Hughes Professor of Mechanical Engineering and chair the Department of Mechanical Engineering & Materials Science, has received a three-year, $429,222 grant from the National Science Foundation to study mehanical properties in the brain.

Some wild clones of social amoebas farm the bacteria they eat, but this is a losing strategy if nonfarming amoebas can steal the farmers’ crops. To make the strategy work, the farmers also carry bacteria that secrete chemicals that poison free riders. The work suggest farming is complex evolutionary adaptation that requires additional strategies, such as recruiting third parties, to effectively defend and privatize the crops, the Washington University in St. Louis scientists say.

In a few days, a balloon-borne telescope sensitive to the polarization of high-energy “hard” X-rays will ascend to the edge of the atmosphere above Fort Sumner, N.M. Once aloft, the telescope will stare at black holes, neutron stars and other exotic astronomical objects that shine brightly in the X-ray part of the spectrum in order to learn about their nature and structure.  After years of preparation, the X-Calibur team is racing to get the experiment mission-ready in time for the stratospheric wind event they hope to ride.