"Break through your brick walls! Your family history research is humming along just fine–you've discovered a trove of old letters here, a census and a birth certificate there. Then something genealogists call a brick wall stops you cold: You can't find the record you need. Your great-grandmother's maiden name eludes you. You don't know where your immigrant ancestor was born. Now you can meet those obstacles with the advice in 101 Brick Wall Busters:...

"Who Discovered DNA? explores the fascinating advances that have been made in the study of DNA and genetics."--

"Who Invented the Computer? looks back at the long history of computers and shows how the digital world in which we live today was created."--

"Who Discovered Natural Selection? explains how scientists worked out the way in which living things evolve."--

"Are We Running Out of Energy? looks at the worldwide drive to produce and consume increasing amounts of energy and at its potentially catastrophic effects on the environment."--

"Tsunami! describes how earthquakes and volcanoes cause deadly waves, the devastation they inflict on communities and the environment, and why they are so difficult to predict."--

"In Russia, you will learn that Russia is the largest country in the world and its natural resources make it one of the richest. It has experienced enormous political, social, and economic upheaval during the last century, and as a result, Russia faces many challenges."--

"Who Invented the Periodic Table? tells the fascinating story of the philosophers, chemists, and other scientists-from ancient times to today-who have contributed to the discovery of all the known elements in our universe."--

"Energy Sources examines our reliance on fossil fuels and their impact on the environment; the pros and cons of nuclear energy; the debate about biofuels; harnessing energy from the Sun, wind, and water; and energy in the future, from hydrogen fuel cells to solar power from space."--

"Forest Fire! describes how, why and where forest fires happen."--