Diego Zamora

The Mammoth Islanders discover the power of an invisible force called magnetism when lightning strikes their wire and iron bar "clothes dryer." When an electric current flows through the wire, the current creates a magnetic field around it. The Islanders learn that opposites do attract.

The inhabitants of Mammoth Island learn how sound energy travels in waves, and one islander creates a primitive microphone, amplifier and loudspeaker.

Two young Mammoth Islanders are delivering mail with a mammoth-drawn wagon when they learn how important the force of friction is as they attempt to slow down. They test a variety of brakes to find the type just right for them, but even with proper brakes, they still get an unscheduled bath after a failed attempt to stop quickly.

The inhabitants of Mammoth Island work together to retrieve a wedding ring that has fallen down a sink drain. They discover what a straw, a plunger, a vacuum and a jackhammer all have in common and the differences and similarities between air pressure (pneumatic machines) and liquid pressure (hydraulic machines).

Dropping boulders off a tower makes gravel for the Mammoth Island roads, but lifting the boulders up to the top of the tower is difficult and dangerous. A young Mammoth Islander suggests that rolling boulders up a ramp would be easier than hauling them up a tower.

Two young Mammoth Islanders enlist the help of a visiting inventor to design a machine that will make the rides at the amusement park much more exciting. After observing the power in the expanding steam of a tea kettle, they decide to build a steam engine that would convert heat energy to mechanical energy that will power everything from spinning cotton candy to powering roller coasters.

When the baking shed catches fire, the Mammoth Islanders use their water-filled mammoths to put it out. But with the help of an inventor, one young Islander develops a machine that pumps water to put out the next fire and saves the summer barbecue.

Some of the Mammoth Islanders decide to explore the far side of a distant mountain ridge on a breezy spring day. Halfway up the steep trail, they become trapped and must be rescued by a hot air balloon.

A visiting inventor and two young Mammoth Islanders create a machine to cool off on a hot summer day.

Two young Mammoth Islanders and a visiting inventor learn the properties of light by observing a room full of crystal trophies. They learn that light waves can do three things when they strike an object: they can bounce, they can pass through; or they can be absorbed. The Islanders also studied lenses to bend light, and they looked through telescopes, periscopes, and binoculars.