Polymers are either natural or synthetic macromolecules composed of many repeating units (monomers) usually arranged in the form of a chain. Examples of polymers are silk, rubber, silicone, DNA ...
7.5MM F2.8 fisheye mirrorless camera lens, lens structure of 8 groups and 9PCS. Upgraded product, optimizes the light way for clearer imaging. Z mount, suitable for Nikon Z6 Z7 Z50 and other ...
A research team has discovered that achiral hard banana-shaped particles can spontaneously form exotic structures like skyrmions and blue phase III phases. Skyrmions are tiny vortex-like ...