Scientists claim they've calculated a potential new method of time travel involving a theoretical object called a “ring wormhole." Here are the details.

How to Calculate Time With an Islamic Astrolabe. Clip: Season 50 Episode 2 | 2m 38s Video has Closed Captions | CC. It is one of Islamic science’s most important and complex astronomical ...

Here's a simple method for calculating your distance from a lightning strike. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Next time you ...

How to Calculate Time With an Islamic Astrolabe. It is one of Islamic science’s most important and complex astronomical instruments. Topic: Tech + Engineering Tech & Engineering NOVA.