Tag: theories
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"Our theoretical understanding"...
"Improvements of our theoretical understanding of the material world..." This is the beginning of a phD thesis in a big university in the US. (Princeton, ProQuest number 22587372) Funny. We started from a real knowledge of the cosmos. By living in it. Then we moved on to understanding it. While standing aside. We seek knowledge.…
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Measuring the cosmos… Ghosts and numbers…
A groundbreaking experiment in physics has for the first time provided a precise measurement of a force between electrons and protons called the weak nuclear force. The value 0.0719 (give or take 0.0045) won't mean much to most of us, but the way they did it makes way for some exciting possibilities for pushing physics…
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Building theories. Seeing what we want to see. Existing.
Scientists have created, for the first time a three-dimensional skyrmion in a quantum gas. The skyrmion was predicted theoretically over 40 years ago, but only now has it been observed experimentally. (1) We always “see” things we have theories about first. Even if we happen to see something totally unexpected, we always create theories to…
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Mapping the brain. But not your brain…
To map neurons, researchers currently use an electron microscope to take pictures -- with one image usually containing a small number of neurons. The researchers then study each neuron's shape and size as well as its thousands of connections with other nearby neurons to learn about its role in behavior or biology. "We don't know…
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Testability. The criterion for good theories. The death of modern humans.
Scientists are testing a theory of particles in a Weyl semimetal instead of testing it near a black hole. Because the behavior or particles in a semimetal is similar to the behavior of particles near a black hole. At the same time string theory has been maligned because it makes predictions that cannot be tested.…
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