From Phys.Org:
Physicists have discovered a new way to coat soft robots in materials that allow them to move and function in a more purposeful way. The research, led by the UK’s University of Bath, is described today in Science Advances. Authors of the study believe their breakthrough modeling on ‘active matter’ could mark a turning point in the design of robots. With further development of the concept, it may be possible to determine the shape, movement and behavior of a soft solid not by its natural elasticity but by human-controlled activity on its surface.
The surface of an ordinary soft material always shrinks into a sphere. Think of the way water beads into droplets: the beading occurs because the surface of liquids and other soft material naturally contracts into the smallest surface area possible—i.e. a sphere. But active matter can be designed to work against this tendency. An example of this in action would be a rubber ball that’s wrapped in a layer of nano-robots, where the robots are programmed to work in unison to distort the ball into a new, pre-determined shape (say, a star).
It is hoped that active matter will lead to a new generation of machines whose function will come from the bottom up.
More here.

Nobody is talking about the blame that must be shouldered by the German government for the crisis and humanitarian disaster in Ukraine.
Esfandyar Batmanghelidj in War on the Rocks:
Ron Ivey in American Affairs Journal:
I
HALF A CENTURY AFTER the publication of Post Office (1971), how should we understand Charles Bukowski’s literary achievement? His publisher predicted that Bukowski would never reach a mainstream audience. And yet his books, including his poetry, have sold millions of copies in more than a dozen languages. Writing for The New Yorker in 2005, Adam Kirsch
“Living in America during the Reagan years had the same disorientation as a texture dream,” writes David Wojnarowicz in
One summer afternoon when I was 23 — this was in 1987 — I was twiddling the dial on the radio in the apartment I was subletting on 114th St. when I stumbled on a station that was unlike anything that I had ever heard before. They were in the middle of a story about the Appalachian Trail, profiling some of the people who were hiking its two thousand miles that year. The reporting was calm, patient, intelligent, allowing the subject to find its own shape, unfolding slowly, minute after minute, like the trail itself.
Here we are, in our ringside seats at a bloody circus, watching on TV and Twitter, trapped between infinite pity and rational self-interest. The tension between two opposing forces is unbearable. Pulling from one side, our horror at a senseless invasion, our wonder at the Ukrainian resistance, the unarmed villagers mobbing a Russian tank or feeding a
New research, published Feb. 17 in the
From 2012 to 2017, I worked as a US air force nuclear missile operator. I was 22 when I started. Each time I descended into the missile silo, I had to be ready to launch, at a moment’s notice, a nuclear weapon that could wipe a city the size of New York off the face of the earth.
WHAT, THOUGH, IF