NASA's Apollo 11 mission was not only a pivotal point in human history, but also a gift that keeps on giving as the work the astronauts did aboard the massive space rock still is helping us out today.

A prism has a constant cross-section throughout its length. When the cross-section is a triangle, the prism is called a triangular prism. When the cross-section is a hexagon, the prism is called a ...

A fire at sea is among a sailor’s worst fears. In the era of wooden shops, where candles and oil lamps were the only sources of illumination, the chance of such a catastrophe was an ever-present ...

Optical Prisms are used to redirect light at a designated angle. Optical Prisms are ideal for ray deviation, or for adjusting the orientation of an image. An Optical Prism's design determines how ...