sometimes a cog railway is necessary for traction as [Max Maker] discovered while building a train for his garbage cans. The build started out as a way to avoid having to wheel his seven waste ...

Seated on the Pikes Peak Cog Train right next to our train driver ... she responded when I asked what got her behind the wheel. “Although these fancy trains nearly drive themselves,” she ...

You can use them to connect the two halves of the gear train ... your way left using a small cogwheel, then two large cogwheels, then another small one. The large wheels will look like they ...

To find the third cogwheel, crouch through the gap ... Go to the Left Gear Train and use both the large wheel used in the previous puzzle and a second large wheel to the right of the Gear Train ...

Mt. Washington Cog Railway: Climbing to the Clouds is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV ...