Relive an awesome episode of Phineas and Ferb! This audio-enhanced eBook features word-for-word narration, thrilling sound effects, and original character voice

Providing essential theory and useful practical techniques for implementing hydroelectric projects, this book outlines the resources, power generation technolog

From water to wire--harnessing the energy of running water.

Eloquent and concise, Platypus uncovers the earliest theories and latest discoveries about this delightfully odd member of the animal kingdom.