A glass prism is a transparent object having two triangular ends and three rectangular sides. The refraction of light in glass prism is different from a glass slab. This is because in glass prism, the ...

Only in Allentown. Only in Allentown could the creative spirits of the past and present come together to launch a public art project that involves the casting of light-refracting rainbow prisms onto ...

Although our eyes usually can't see them, visible light contains all the colors of the rainbow. This kind of light is called 'white light,' and it's the light we get from the sun, a lamp or a ...

IN such elementary text-books on geometrical optics as I have consulted it has always seemed to me that the writers have found a difficulty in presenting a precise direct proof of the theorem that ...

As lawless gangs of ICE agents terrorize city neighborhoods, it’s getting harder to maintain that the United States is a democracy. Marilynne Robinson’s Pulitzer–winning novel speaks unflinchingly of ...