Irreversibility and symmetry breaking in the creation and annihilation of defects in active living matter

Sanchez, T. Spontaneous movement in hierarchically assembled active matter. Nature 491, 431–434 (2012). Article  ADS  Google Scholar  Guillamat, P. Active nematic emulsions. Sci. Adv. 4, eaao1470 (2018). Article  ADS  Google Scholar  Tan, A. J. Topological chaos in active nematics. Nat. Phys. 15, 1033–1039 (2019). Article  Google Scholar  Kumar, N. Tunable construction and dynamics of active…

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‘The chances of you living 50 years are very small’: Theoretical physicist explains why humanity likely won’t survive to see all the forces unified

‘The chances of you living 50 years are very small’: Theoretical physicist explains why humanity likely won’t survive to see all the forces unified

When theoretical physicist David Gross was 13, he acquired a replica of a well-liked science e-book, “The Evolution of Physics” (Cambridge University Press, 1938), signed by Albert Einstein. The e-book, co-authored by Einstein himself, began Gross on a journey into the hearts of atoms, the place he ultimately helped reply a query that had bedeviled…

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