‘Ring of Fire’ Solar Eclipse Will Be Visible in Parts of South America

Annular solar eclipse will turn the sun into a glorious 'ring of fire' today. Here's what you need to know.

Annular Solar Eclipse to Create Insane 'Ring of Fire' – Here's How to Watch

These 3D-printed pipes inspired by shark intestines outperform Tesla valves -- "Prototypes control fluid flow in a preferred direction with no need for moving parts."