Typically starting from scratch and creating their own custom circuit boards, these engineers are essentially building giant remote-controlled toys.

Try things out and discover how things work by 'playing' with giant scientific toys.

It rolls, a giant toy, to whichever corner it's wanted in.

"You're going to have to do something radical and different," Dr. Ammerman said, adding that the sea gates were "a giant toy."

This Pacific Coast living room is littered with giant toys.

This is very trucklike, very robust looking, almost like a giant toy.

Rose saw him lose his balance and fall like a giant toy: bump, bump, bump.

In a film geared to extra-patient 8-year-old viewers, it's hard to compete with a giant flying toy.

The rolls of coils, looking a bit like a giant slinky toy, are about three feet high.

As a whole, it appeared like a giant toy top drilled into the ice.