"...So much of our lives is meaningless, a self-cancelling vacillation and futility; we strive with the chaos about us and within; but we would believe all the while that there is something vital and significant in us, could we but decipher our own souls. We want to understand; 'life means for us constantly to transform into light and flame all that we are or meet with'..." The Story of Philosophy (1926) is a groundbreaking work of creative nonfiction...

The inhabitants of Mammoth Island learn about electricity during the annual lemon harvest. They learn how current and static electricity are different and what metals make the best conductors of electricity.

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.

The Mammoth Islanders invite a visiting inventor to a noisy concert of musical mammoths. Then they learn the principles behind various wind, string, brass and percussion instruments. The result is music to their ears.

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).

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

Who flies rescue helicopters? What does the inside of a rescue helicopter look like? Learn all about these important machines in this book. The huge wheels, powerful engines, and loud noises of working machines seem to entrance children for hours. Now young students can pore over color photos as they learn about their favorite machines--inside and out. Each book builds vocabulary as it describes in simple language the basics of a machine: what it...

There is a growing gap between the skills entry-level job seekers have and the skills needed in twenty-first century workplaces. In a series dedicated to helping teens become ready to join and succeed in the work force (whether part- or full-time), this title contains a detailed look at the interpersonal skills and knowledge that they need in order to successfully search for and acquire a job, as well as to thrive once hired.