Worried about the U.â S. trade deficit with China? There is one U.â S. product the Chinese can’t get enough of: wooden roller coasters. At least that is the impression one gets from The Gravity Group ...

Here’s a fun spin on engineering and all you need is paper, scissors, and tape — paper roller coasters. Just fold, cut, and tape colorful paper strips of heavy paper together to create sturdy roller ...

Experienced the most awesome roller coasters ever built! Just as the title implies, this state of the art DVD takes you to 20 of the most spine tingling, gut wrenching, jaw dropping roller coasters in ...