Humans have built machines on an incredible scale. Some are so large they stretch across miles. This video explains what the ...

While others are saying hydrogen is unfeasible and inadequate, America decided otherwise. They understand the power that hydrogen withholds and that, despite the challenges that come with it, it is ...

The sheer size of some of the world's tallest buildings is just extraordinary. The current tallest, Guinness World Records reports, is the Burj Khalifa in Dubai, which stands at 2,716 feet, 6 inches ...