Books with author Ron Fridell

From roaring oceans to trickling streams, water covers seventy percent of our planet! But did you know that less than one percent of Earth’s water is usable by humans? Most water on Earth is salt water. It can’t be used for drinking, bathing, or growing plants. We need freshwater. Yet about two-thirds of Earth’s freshwater is frozen solid at the North and South Poles. And the water we can access―from lakes, rivers, streams, wetlands, or underground sources―is in danger of being polluted. There is not enough water to waste. We must join together in the quest to protect this valuable resource. With engaging text and eye-catching images―plus a special Going Green section―this book tells you all about Earth’s water and what you can do to protect it.

We’ve all seen the television shows featuring smart scientists solving crimes. But what’s real―and what’s not? Forensic scientists use science to solve crimes. They collect tiny bits of evidence from crime scenes, including fingerprints, blood, insects, carpet fibers, and more. So how do scientists really use this evidence to figure out crimes? Find out through these fascinating, real-life examples.

Can you think fast? Can you keep a secret? Are you daring? Then chances are you would make a good spy. Learn all about the high-tech gadgets that spies use for their top-secret work. Spy Technology profiles common ways of spying―Image Intelligence, Communication Intelligence, and cryptography. This book shows the sneakiest spy techniques of the past and takes a look at cool new tools for twenty-first century spies.

After leaping from a plane, a skydiver opens a pair of carbon fiber wings and shoots through the sky at 200 miles per hour, in perfect control. Down on the ground, an Olympic pole vaulter soars to a world record on a state-of-the-art pole. A runner, born without feet, runs on space-age artificial limbs at speeds almost as fast as Olympic winners. Meanwhile, a swimmer slices through the water in a bodysuit modeled after sharkskin and shaves vital seconds off her time. How have these athletes managed such amazing feats? The answer is sports technology. Learn how science helps athletes stay safer, perform better, and have more fun.