precision optics the superior quality of an optical material is reflected in its homogeneity and, to be even more specific, in an extremely narrow variation range for the entire piece of glass with respect to refractive index. therefore, the optical glasses that are used in high-power laser and astronomical...
related organizations that care about data. its focus is on creating both a culture and a framework of standards, agreements and protocols that enable data to be shared and reused. about icsu-wds : icsu-wds was established in (its predecessor bodies, the world data centres and the federation of astronomical...