From the fall of an apple to the glow of the farthest known star, gravity quietly choreographs almost everything that happens in the cosmos. It shapes planets and people, bends light into celestial ...

Astronomers at the University of Chicago, MIT and elsewhere have used a massive cluster of galaxies as an X-ray magnifying glass to peer back in time, to nearly 9.4 billion years ago. In the process, ...

KnowHOW team explains: A magnifying glass is a convex lens ? both its surfaces are curved outward. When light ray passes through such a lens, having arrived along a direction parallel to its axis, ...

The Standard's journalism is supported by our readers. When you purchase through links on our site, we may earn an affiliate commission. A magnifying glass may conjure up visions of a Victorian ...

Glimpse worlds beyond our own with AG’s esteemed space expert and living legend, Fred Watson. Fred Watson is an honorary professor at Macquarie University and was Australia’s first Astronomer-at-Large ...

In this International Year of Light (IYL 2015) we don’t just want to tell you about how great light and its applications are, we want to show you too. So in this short video, industrial scientist and ...

A double-convex lens is compose of two convex surfaces, has a positive focal length. Normally Bi-Convex lenses are most suitable where the object and image are on opposite sides of the lens, and are ...

Light is refracted when it enters a material like water or glass. Depending on the density of the material, light will reduce in speed as it travels through, causing it to change direction. Ray ...