Science & Technology

Scientists attending a workshop at Cold Spring Harbor Laboratory  slipped the leash of scientific caution and tried to imagine what they would do if they could redesign plants at will. The ideas they dreamed up may make the difference between full bellies and empty ones in the near future when population may outrun the ability of traditional plant breeding to increase yields.

New Horizons will fly through the Pluto system on July 14 at an angle of 46 degrees to the plane of the dwarf planet’s orbit, then turn to use sunlight reflected from Charon, Pluto’s biggest moon, to image areas of Pluto now in continuous darkness. Your host for the WashU Pluto watching party will be Bill McKinnon, a planetary scientist at Washington University in St. Louis, who will be commenting from mission headquarters at the Johns Hopkins University’s Applied Physics Laboratory in Maryland.

In 1999, Danish scientist Per Bak made the startling proposal that the brain remained stable for much the same reason a sand pile does; many small avalanches hold it at a balance point, where — in the brain’s case — information processing is optimized. Now scientists have shown for the first time that a brain receiving and processing sensory input follows these dynamics.

Scientists have been itching to go to Europa for a long time because this moon is thought to have a global ocean beneath an outer shell of ice — an ocean that may be hospitable to life. In May, NASA took the first step, selecting nine instruments to fly on a mission to Europa. Washington University’s William McKinnon, on the science team for two of the instruments, talks about the mission.

Lecture-based learning can be challenging for students who have difficulties building mental models for the organization of new information, but providing them with diagrams and other supporting material in advance of the lecture can help them overcome these hurdles, suggests new research from Washington University in St. Louis.

What is it with cheating? Cheaters seem to have an immediate advantage over cooperators, but do they have an evolutionary advantage? A study published in Current Biology suggests the benefits of cheating change with its prevalence,in a population. Cheaters may succeed, for example, only when they are rare, and fail when they become so numerous they push out cooperators.

A Washington University earthquake seismologist who is teaching a course on natural disasters in movies reviews the newly released film “San Andreas.” The short version: they clearly didn’t have a seismologist consulting on this film. The take home message: Go see it anyway. It’s summer.

The hallmark of the 18-month Pathfinder Program in Environmental Sustainability at Washington University in St. Louis is the field trips to ecosystems, such as the Mojave Desert, that give students the chance to see and touch the land they have been studying. It’s hard to get the students back in the van, says Ray Arvidson, who leads the program.

The Opportunity rover is currently exploring a Martian crater named the Spirit of St. Louis, after the famous aircraft — which was in turn named in honor of St. Louis citizens who purchased it for Charles Lindbergh. The mission team picked this naming scheme because Washington University team members spotted a promising target just beyond the crater. As long as the rover remains in the crater, the names will drawn from a list of names related to the famous flight. ​

There’s a small room in Rudolph Hall, at Washington University in St. Louis, that most students walk right past without noticing. But when anyone finds it, they usually insist all their friends come and look as well. It’s one of those special things about the university no student ever forgets, and this is the story […]