A still from the educational NASA video "STEMonstrations: Newton's 2nd Law of Motion." Here, astronaut Randy Bresnik is seen introducing the experiment he is about to conduct in microgravity. In a new ...

They point to Isaac Newton to make our case. At the same time that he used a primary objective spherical mirror to build astronomical his telescope, in his equally famous Double Prism Experiment, ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. In 1667, then a young Fellow at ...

The standard telescope of Newton's time, the refracting telescope, was not ideal. Its glass lenses focused the different colors inherent in light at different distances. This resulted, at the edges of ...