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SOLVENT ACTIONS. “Release of surface hydration water or attached surfactant molecules can yield an additional entropic driving force besides the energy gain through elimination of two high energy surfaces. This would transform the mesocrystal into a single crystal.” https://lnkd.in/eNACsghr View in LinkedIn

INTRAMOLECULAR FORCES. “Beside physical fields with longer range, there are also forces upon particle contact. Already two identical crystal faces can orient each other when brought in close contact, as was observed in the process of oriented aggregation. The principal attractive force between two objects is the van der Waals attraction, which can lead to aggregation of particles.” https://lnkd.in/eNACsghr View in LinkedIn

FRAGMENT FROM NATURE this weekend continues from last weekend and concludes on Sunday on the theme of mesocrystals in biomaterials. Both mesocrystals and biominerals are outliers in their unusual physical properties, and chemists have been trying to understand biomineralization in order to advance biomimicry chemistry to create advanced materials with enhanced properties. https://lnkd.in/eNACsghr View in LinkedIn

The inchplant, tradescantia zebrina, has irridescent purple leaf undersides that shine through the upper leaf. Truly magnificent. View in LinkedIn

BUCKMINSTER. “The upshot of the above is that through the symmetry, it is possible to identify a flat geometry where hyperbolae are geodesics.” https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf View in LinkedIn

SCALAR ASSUMPTION. “However, we will assume a decent separation of scales between the various effects, so that the different structures can be considered to be nested within each other and dealt with separately.” https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf View in LinkedIn

NESTED PROPERTIES. “The full symmetry picture is quite intricate, since the configuration of the obstacles have nested geometrical qualities. For a double-slit, there are single slits at the foci, and for a single slit, there are edges at the foci. In addition, an elliptic transformation does not give a diffeomorphism for the line between the foci.” https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf View in LinkedIn

THE JOINT. “A large part of the appropriate geometry hence is elliptic, and we will illustrate that the elliptic geometry is compatible with a flat space-time metric that seamlessly connects to the vacuum flat metric far away from the apertures.” https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf View in LinkedIn

LINEAR PARTS OF HYPERBOLAE. “Since the wave pattern describes hyperbolae for single or double slits, the symmetry of the light diffraction is that of an elliptic cylindrical coordinate system. In that setting, the hyperbolae describe lines parameterized by one of the coordinate variables, providing an elementary example of straight lines.” https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf View in LinkedIn

The winds causing the persistent eddy of winds on the Costa Brava. https://lnkd.in/e4_PbbuJ View in LinkedIn