This was made possible through the understanding of the basic principles of optics and the work of skilled glassmakers who constructed prism tiles, deck prisms, and vault lights. These century-old ...

Prolonged exposure to the sun’s Ultraviolet A (UVA) and Ultraviolet B (UVB) rays can lead to sunburns, dark spots and wrinkles. Even during Islamabad’s cooler months, UV rays can penetrate the ...

This was made possible through the understanding of the basic principles of optics and the work of skilled glassmakers who constructed prism tiles, deck prisms, and vault lights. These century-old ...