Fiona Macdonald

The pelican was a tool used to extract teeth in the 16th century. If used without care, it could break the patient's jaw. From dentists to insects to bacteria, this series tackles some of life's more unpleasant experiences-and explores how much worse it might be if they didn't exist. Each title is a blend of history and science, explaining how things work and revealing how humans have come to terms with all the challenges that nature has thrown at...

Knights Needed...Could you qualify? Must be young, male, physically fit and strong. It helps to come from a noble or wealthy family so you can afford your own warhorse, weapons, and armor. Riding and fighting skills preferred.

Samurai Needed...Could you qualify? Samurai are elite Japanese warriors, self-disciplined, honorable, and brave. They fight in private armies, led by daimyo (local lords). Both Daimyo and samurai are very powerful and oftentimes fight against each other as well as the shogun, the mighty army commander and real ruler of Japan.

Where did all the water in the oceans come from? What causes the tides? Why does the ocean look blue? Discover the answers to these questions and many more in this fascinating guide to the world's oceans.