large radioactive camera lens (Thorium 232)

large radioactive camera lens (Thorium 232)

By adding thorium to the lens glass a high refractive index could be achieved while maintaining low dispersion. thus, radioactive camera lenses used to be state-of-the-art in high-demand photography.

test Introduction to Chemistry

Introduction to ChemistryIntroduction to Chemistry

Self healing hydrogels and its industrial applications

Hydrogels are water-swollen, cross-linked polymeric structures produced by reactions of monomers or by hydrogen bonding. This hydrogels used in various applications .