Stringer, John

Information about various topics related to machines, especially those used for transportation, forms the foundation for a variety of craft projects.

Provides information about the many forms of human communication throughout history and accompanying craft projects.

Explores the use of sustainable energy around the world, discussing the different types energy sources and how people can be more energy efficient.

Explains why springs act the way they do, based on elementary concepts of physics.

Introduces the force of gravity and discusses its effects and reasons for variations in its strength.

Explains what magnetism is, looks at how it works, and includes a selection of simple, related experiments.