MIT CSAIL scientists came up with a learning pipeline for the four-legged MIT mini cheetah robot that learns to run and adapt to new terrains entirely by trial and error in simulation.
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A few years ago, a novel measurement technique showed that protons are probably smaller than had been assumed since the 1990s. This surprised the scientific community; some researchers even believ .
February 24, 2021
Asymmetry in the proton confounds physicists, but a new discovery may bring back old theories to explain it.
Graphical representation of the proton. The large spheres represent the three valence quarks, the small spheres represent the other quarks that make up the proton, and the springs represent the nuclear force holding them together. (Image by Brookhaven National Laboratory.)
Symmetry displayed in areas ranging from mathematics and art, to living organisms and galaxies is an important underlying structure in nature. It characterizes our universe and enables it to be studied and understood.
Because symmetry is such a pervasive theme in nature, physicists are especially intrigued when an object seems like it should be symmetric, but it isn’t. When scientists are confronted with these broken symmetries, it’s as if they’ve found an object with a strange reflection in the mirror.