The surface area of the sphere is equal to 4 circles of the same radius. Surface area of a sphere. Image gallery Skip image gallery. Image caption, Click to see a step-by-step slideshow.

Microsoft’s Surface Sphere operates a lot like the original Surface, utilizing a projector surrounded by a ring of IR cameras, which is then covered by a semi-opaque globe.The IR cameras detect ...

Scientists have discovered that under the right conditions, a gummy bear-like ball can roll down a vertical wall all by itself—upending a core assumption in physics.

KnowHOW team explains: Water drops, or, for that matter, the drops of any other liquid, are spherical in shape due to a phenomenon called surface tension.In a liquid this acts on the surface of a ...

The surface area of the sphere is equal to 4 circles of the same radius. Surface area of a sphere. Image gallery Skip image gallery. Image caption, Click to see a step-by-step slideshow.