From the New York Times bestselling author Simone Elkeles comes an epic love story like no other . . . First in the gripping PERFECT CHEMISTRY series, this is the next addictive read for fans of Anna Todd's AFTER series, and Caroline Kepnes's YOU. When Brittany Ellis walks into chemistry class on the first day of senior year, she has no clue that her carefully created 'perfect' life is about to unravel before her eyes. Forced to be lab partners with Alex Fuentes, a gang member from the other side of town, Brittany finds herself having to protect everything she's worked so hard for – her flawless reputation, her relationship with her boyfriend and, most importantly, the secret that her home life is anything but perfect. Alex is a bad boy and he knows it. So when he makes a bet with his friends to lure Brittany into his life, he thinks nothing of it. But the closer Alex and Brittany get to each other the more they realise that sometimes appearances can be deceptive and that you have to look beneath the surface to discover the truth. 'Compelling and addictive… I've still got that "wow" feeling you get after reading a great book' Wondrousreads.com 'Perfect Chemistry is a novel to obsess about. It is a book that you should drop everything for...the most romantic love story that I have ever read.' Thebookette.com 'Captures that rush of feelings associated with first love' Thebookbag.com 'Elkeles pens plenty of tasteful, hot scenes…that keep the pages turning. The author definitely knows how to write romance.' Kirkus Review

From the New York Times bestselling author Simone Elkeles comes an epic love story like no other . . . This is the final installment in the gripping PERFECT CHEMISTRY trilogy, and the next addictive read for fans of Anna Todd's AFTER series, and Caroline Kepnes's YOU. Like his brothers, Luis Fuentes is a risk taker; whether he's scaling the Rocky Mountains or dreaming of a future as an astronaut, Luis is always looking for the next thrill. Nikki Cruz lives her life by certain rules - don't trust a boy who says "I love you", boys lie to get their own way and never date a boy from the south side of Fairfield. Then she meets Luis at his brother Alex's wedding and suddenly she's tempted to break all her rules. Getting Nikki to give him a chance is Luis's biggest challenge, until he finds himself targeted by the head of the gang that nearly destroyed his brothers' lives. Will Luis's feelings for Nikki be enough to stop him from entering a dark and violent world that could prove to be the ultimate risk? The final instalment in the steamy, romantic and thrilling Perfect Chemistry trilogy.

The rise of the presidential wing of the Republican party over the past generation has been driven by the overlapping issues of race and taxes. The Republicans have capitalized on these two issues, capturing the White House in five of the last six elections. "May be the best account ever written on why the Democrats no longer dominate American party politics. . . ".--Judy Woodruff.

Rachel Scott and her killer Eric Harris both talked about starting a "chain reaction." Eric used violence to kill and destroy at Columbine High School. But Rachel chose another path. In a personal creed she wrote one month before her death in the Columbine tragedy, she explained her conviction that if one person goes out of his or her way to show compassion, it will start a world-changing chain reaction of kindness. For Rachel, this was a solemn calling. And now her father, Darrell Scott, is carrying on her crusade by challenging people of all ages to commit themselves to creating a revolution of compassion that can make a real difference in our troubled world. Chain Reaction spells out this challenge in compelling detail, providing moving examples of practical compassion and giving illustrations from Rachel's life and journals.

James D. Watson When, in late March of 1953, Francis Crick and I came to write the first Nature paper describing the double helical structure of the DNA molecule, Francis had wanted to include a lengthy discussion of the genetic implications of a molecule whose struc ture we had divined from a minimum of experimental data and on theoretical argu ments based on physical principles. But I felt that this might be tempting fate, given that we had not yet seen the detailed evidence from King's College. Nevertheless, we reached a compromise and decided to include a sentence that pointed to the biological significance of the molecule's key feature-the complementary pairing of the bases. "It has not escaped our notice," Francis wrote, "that the specific pairing that we have postulated immediately suggests a possible copying mechanism for the genetic material." By May, when we were writing the second Nature paper, I was more confident that the proposed structure was at the very least substantially correct, so that this second paper contains a discussion of molecular self-duplication using templates or molds. We pointed out that, as a consequence of base pairing, a DNA molecule has two chains that are complementary to each other. Each chain could then act ". . . as a template for the formation on itself of a new companion chain, so that eventually we shall have two pairs of chains, where we only had one before" and, moreover, " ...

With Build Your Own Chain Reaction Machines, you’ll create 13 zany and awesome mechanical contraptions using stuff from around the house. Build Your Own Chain Reaction Machines invites you into the wonderful world of crazy contraptions inspired by the amazing artwork of renowned cartoonist, engineer, and inventor Rube Goldberg, whose wacky, imaginary machines accomplished a simple task by taking a hilariously complicated route. In this entertaining and instructive book, mechanical engineer and educator Paul Long gives step-by-step instructions for making low-tech devices using everyday objects in inspired and ingenious ways. Each of the 13 projects demonstrates how to build the machine's various elements and explains how they work together to make a mind-boggling mechanism that delivers hours of fun and fascination. Machines for Your Room. Be the master of your domain with the Door Knocker, Light Switcher, and Door Opener. Machines for Around the House. Get your chores done (and improve your personal hygiene) with the Plant Waterer, Toothpaste Squeezer, and Soap Dispenser. Machines for Fun and Nonsense.The Flag Raiser, Marble Launcher, Music Maker, and Balloon Popper are guaranteed to both amaze and amuse. Machines for Food. With the Vending Machine, Candy Dispenser, and Cookie Dunker, snacking has never been so fun! You'll also find interesting sidebars on the science behind each gadget, plus tips and tricks for success. Build Your Own Chain Reaction Machines gives you the know-how to create your own incredible chain reactions!

Path-breaking research into the Atomic Energy Commission's internal memorandum files supports this text's explanation of how and why America came to depend so heavily on its experts after World War II and why their authority and political clout declined in the 1970s.