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TIME AGNOSTIC PHYSICS. “Time symmetry in physics has been assumed to consist in the fact that all the equations are reversible in time.” https://lnkd.in/gDaxUYAS View in LinkedIn

FRAGMENT FROM NATURE highlights a 2013 paper titled ‘Genome dynamics during experimental evolution’, by Jeffrey E. Barrick & Richard E. Lenski. The paper shows that “Genomic analyses show that adaptation rarely occurs by periodic sweeps of single beneficial mutations through asexual populations. Rather, divergent paths that involve multiple mutations are often explored before any one evolved type can displace its competitors.” https://lnkd.in/dfp9nRAQ View in LinkedIn

SOLVING THE NUT. “Big Bang theory has assumed that space-time and the included mass-energy expanded only in one direction in time, say (+) time.” https://lnkd.in/gDaxUYAS View in LinkedIn

Time for bed, daddy. View in LinkedIn

“MIND, n, A mysterious form of matter secreted by the brain. Its chief activity consists in the endeavor to ascertain its own nature, the futility of the attempt being due to the fact that it has nothing but self to know itself with.” Ambrose Bierce, The Devil’s Dictionary (1909). https://lnkd.in/d6WmmHTS View in LinkedIn

RECOGNITION. “Yet the concept was central to Feynman's work in quantum electrodynamics. J.J. Sakurai's textbook praises the simplicity and elegance of Feynman's approach, pointing out its mathematical equivalence to Tomonaga and Schwinger's more conventional and complex version.” https://lnkd.in/gDaxUYAS View in LinkedIn

LOST IN THE WEEDS. “This view has never been refuted, but it is seldom discussed. The textbooks devote a few paragraphs to the topic: for example "Quarks and leptons" by Halzen and Martin.” https://lnkd.in/gDaxUYAS View in LinkedIn

“THE STUFF which the world of our experience is composed is, in my belief, neither mind nor matter but something more primitive than either. Both mind and matter seem to be a composite, and the stuff of which they are compounded lis in a sense between the two, in a sense above them both, like a common ancestor.” (Bertrand Russell, 1921). https://lnkd.in/dGjr7B9y View in LinkedIn

NEW NUTRIENT USE. “The LTEE uses a glucose-limited medium, but citrate — another nutrient that E. coli generally cannot use — has also been present throughout the experiment. The ability to use this abundant but untapped resource evolved after 30,000 generations (~15 years) and in only one of the 12 replicate populations.” https://www.nature.com/articles/nrg3564 View in LinkedIn

MIXED MUTATIONS. “In these examples, the relevant mutations each conferred a direct advantage in terms of using the new resource, but this need not be the case.” https://www.nature.com/articles/nrg3564 View in LinkedIn