Man can move easily enough in the three dimensions of space - why not the fourth: Time? An intriguing after-dinner conversation takes an unexpected turn when the host produces a small machine, which promptly disappears into thin air. It has been sent into the future, he says. Or maybe the past. As his skeptical guests try to fathom what they have seen, the host unveils a full-size machine, nearing completion. At a similar gathering one week later...

Desperate to alter the course of time, a visionary scientist invents a revolutionary machine that propels him 800,000 years into the future. There he discovers that humans have evolved into two groups: the hunters and the hunted. Now he must fight to save himself, and all of mankind, in a final, desperate battle.

"An intrepid adventurer, known simply as the Time Traveler, meets his friends for dinner one night. During the conversation, he baffles them with his wild ideas about moving forward or backward in time. His claims are met with disbelief. Even when he proves his theory with a real-life experiment, his associates simply claim that he is a trickster--a magician. A week later, he enthralls his acquaintances yet again. He tells a story so unbelievable...

Liam Chapman's books report on Thomas Edison is due tomorrow, and he hasn't even started reading yet. But don't worry! He's got a plan. You see, Liam just bought a garage sale time machine for three bucks. Sure, it's labeled "World's Worst Time Machine," but that seem dramatic. It is NOT dramatic. Not even a little bit. To keep this wheezing cardboard death machine from ruining his life, Liam will need help from a mad scientist, the wrong Thomas Edison,...

Marcus is in trouble. He didn't think his friend Laurence would actually believe him when he said that his super brainy aunt built the very first time machine. He only made up the story in a spur-of-the-moment bid to win a silly argument! Now how on earth will he make the story come true?

Grad-school dropout Matt Fuller accidentally creates a time machine and sends himself into the near future, where he discovers he is a murder suspect, prompting him to once again travel through time in search for a safe place, despite the fact that no place seems to be perfectly safe for Matt.

Fifth-grader Alex Trumble builds a "dingus"--a time machine--when his brother Stephen is kidnapped by dangerous, evil time-travelers, to get back to the past and into the future to save his family from disaster.

"In How to Build a Time Machine, Brian Clegg provides an understanding of what time is and how it can be manipulated. He explores the remarkable possibilities of real time travel that emerge from quantum entanglement, superluminal speeds, neutron star cylinders and wormholes in space. With the fascinating paradoxes of time travel echoing in our minds will we realize that travel into the future might never be possible? Or will we realize there is no...

"Unleash the magic of math with Danica McKellar, her friends Mr. Mouse and Ms. Squirrel, and the exciting contraption the Times Machine!"--

Just how good were the good old days? Travel back in time with the Bowler family, smitten by the idea of experiencing the Victorian lifestyle right down to corsets, chamber pots and cutthroat razors, as they turn back the calendar to spring of 1900. Their eye-opening experiences of the grueling demands of a bygone era help them to understand another era with an exceptional clarity and a unique perspective.