The core is a soup of pure neutrons, while the crust is smooth, solid and 10bn times stronger than steel.
The right mixture at the right temperature, between -90C and -130C, becomes a smooth solid, like glass - hence vitrification.
Mr. Meskouris, a smooth, solid man who wears a diamond stud in each ear and has impeccably barbered eyebrows, invited them to his New Year's Eve party.
Specular reflection of a particle by smooth solid wall is a classic textbook illustration on the principle of conservation of momentum1.
After artist Venetia Dale came across a plastic keychain ornament depicting a teddy bear in an armchair, she made hundreds of duplicates in pewter and pressed them together until they formed a smooth, solid mass.
In the present work, we have developed macroporous polymer scaffolds with varying pore wall architectures from smooth (solid), microporous, partially nanofibrous, to entirely nanofibrous ones.
Yet its Assyrian maker would instantly recognise today's lenses, which continue to be made in much the same way: by fashioning a piece of transparent material into a smooth, solid shape with curved surfaces.Enter Federico Capasso, of Harvard University.
Three different morphologies and crystal phase samples, including double-layer hexagonal prism ascribed to wurtzite ZnO (JCPDS No. 36-1451), porous microspheres ascribed to an unusual ZnO phase (JCPDS No. 21-1486) and smooth solid amorphous zinc citrate microsphere, were obtained.
In particular, phase separation of PLLA/PDLLA or PLLA/PLGA blends leads to partially nanofibrous scaffolds, in which PLLA forms nanofibers and PDLLA or PLGA forms the smooth (solid) surfaces on macropore walls, respectively.
