Just last month, we told you about the Kranium – a prototype bicycle helmet with a core made from cardboard instead of the usual expanded foam. Well, we obviously weren’t the only ones impressed by it ...

Warren King is a former engineer turned artist, and he's a wizard when it comes to cardboard. Most of his mesmerizing sculptures are made with just cardboard, glue, and a knife. Warren shows us how to ...

Anirudha Surabhi’s brilliant cardboard Kranium helmet is the latest and greatest development in sustainable noggin-protecting technology. While cardboard might not sound like the material of choice to ...