But where do you begin? With all that information, it can be impossible to know where to start! In The Everything Guide to Online Genealogy, 3rd Edition, genealogy expert Kimberly Powell guides you through the process of finding your ancestors, helping you: Effectively search various websites Decipher census data and other online records Choose the best way to share data with family members Connect with other genealogists through social media Packed with tips on using free databases, new websites, and a growing number of genealogy apps, The Everything Guide to Online Genealogy, 3rd Edition has everything you need to scour the Internet and find your ancestors, going back generations!

    A favorite of Tesla and SpaceX founder Elon Musk, listeners will want to tune into this "really good book on rocket[s]," available for the first time in audio. Ignition! is the story of the search for a rocket propellant which could be trusted to take man into space. This search was a hazardous enterprise carried out by rival labs who worked against the known laws of nature, with no guarantee of success or safety. Acclaimed scientist and sci-fi author John Drury Clark writes with irreverent and eyewitness immediacy about the development of the explosive fuels strong enough to negate the relentless restraints of gravity. The resulting volume is as much a memoir as a work of history, sharing a behind-the-scenes view of an enterprise that eventually took men to the moon, missiles to the planets, and satellites to outer space. A classic work in the history of science, listeners will want to get their hands on this influential classic, available for the first time in decades.

    "More concretely," the authors explain, "it is the controlled manipulation of mathematical formulas, using a collection of techniques for solving problems."