In a world filled with modern navigation tools, there is still a place where the humble compass can be used. Knowing how to make a compass, and teaching others how to make one, serves to develop a ...

Smart watches are fine, but they really don’t capture the DIY spirit. Over on Instructables, user benhur.gonvalves shows you how to build a smart little watch using an Arduino. You’ll need an Arduino ...

Click to viewA compass that doesn’t need a magnetic needle? That might sound impossible, but the ancient Chinese worked out how to make one 4500 years ago. Now you can make one too—from Lego bricks.