Hidden Harmonies: The Lives and Times of the Pythagorean Theorem
A squared plus b squared equals c squared. It sounds simple, doesn't it? Yet this familiar expression is a gateway into the riotous garden of mathematics, and sends us on a journey of exploration in the company of two inspired guides, acclaimed authors Robert and Ellen Kaplan. With wit, verve, and clarity, they trace the life of the Pythagorean theorem, from ancient Babylon to the present, visiting along the way Leonardo da Vinci, Albert Einstein, President James Garfield, and the Freemasons-not to mention the elusive Pythagoras himself, who almost certainly did not make the statement that bears his name.
The Filter Bubble - What the Internet is Hiding From You
Pariser delivers an eye-opening account of how the hidden rise of personalization on the Internet is controlling--and limiting--the information we consume. In December 2009, Google began customizing its search results for each user. Instead of giving you the most broadly popular result, Google now tries to predict what you are most likely to click on. According to MoveOn.org board president Eli Pariser, Google's change in policy is symptomatic of the most significant shift to take place on the Web in recent years-the rise of personalization.
Silvia Broome is an interpreter at the United Nations. One night she hears a plan to kill the President of the African state of Matobo. Agent Tobin Keller of the US Secret Service must stop the killers. But is Silvia telling the truth? Is she hiding something from him? Is she more dangerous than the President's other enemies?
In DC First Lady Jane Cox hires former secret service agents turned private investigators Michelle Maxwell and Sean King to rescue her abducted twelve year old year niece Willa, who daringly was kidnapped following a birthday party at Camp David; her mom, sister-in-law to President Cox was killed in the assault. Jane chose the pair because she knows they get results as King saved her husband’s life when he was a senator.
The sudden death of Russia's president has thrown the Russian Federation into chaos. Devastating crop failures have left millions in the grip of famine, and an uprising seems inevitable. One of Russia's provisional leaders asks the American president for help. But the whole world is watching when a deadly terrorist attack stuns the United States-and evidence points to the Russian government.
