But the yo-yos didn't spin fast enough to work as a centrifuge. Then they stumbled upon the children's toy known as the whirligig, or buzzer. The toy is made of a disc that spins when a person ...

Toy company Spin Master Corp. has expanded its outdoor product line by acquiring the flying disc assets of Aerobie Inc. for undisclosed terms. The flying disc developed by Aerobie set a new ...