Peter Refton is a hunter of human lives. Across a score and more of Earths he has caught and captured the most fascinating and pivotal people. The knight who reformed Charlemagne's army. The bureaucrat who oversaw China's expansion and control. The inspirerer of wisdom in a million seekers of understanding. Peter Refton is that most dangerous of hunters: the biographer. He has made trophy-stories of so many, and boldly carries their lives around from world to world. Then one day, a story comes to hunt his life. Now, caught between worlds and aided by a knight, an ancestress, a sorceress and twin warriors, Peter Refton is on a Quest to -- To free himself from the coils of the most voracious of stories: the Quest. To fight the Quest itself and those who told the story onto him.

X Marks the Spot is written from the point of view of the users of mathematics. Since the beginning, mathematical concepts and techniques (such as arithmetic and geometry) were created as tools with a particular purpose like counting sheep and measuring land areas. Understanding those purposes leads to a greater understanding of why mathematics developed as it did. Later mathematical concepts came from a process of abstracting and generalizing earlier mathematics. This process of abstraction is very powerful, but often comes at the price of intuition and understanding. This book strives to give a guided tour of the development of various branches of mathematics (and what they're used for) that will give the reader this intuitive understanding. Features Treats mathematical techniques as tools, and areas of mathematics as the result of abstracting and generalizing earlier mathematical tools Written in a relaxed conversational and occasionally humorous style making it easy to follow even when discussing esoterica. Unravels how mathematicians think, demystifying math and connecting it to the ways non-mathematicians think and connecting math to people's lives Discusses how math education can be improved in order to prevent future generations from being turned off by math.

X Marks the Spot is written from the point of view of the users of mathematics. Since the beginning, mathematical concepts and techniques (such as arithmetic and geometry) were created as tools with a particular purpose like counting sheep and measuring land areas. Understanding those purposes leads to a greater understanding of why mathematics developed as it did. Later mathematical concepts came from a process of abstracting and generalizing earlier mathematics. This process of abstraction is very powerful, but often comes at the price of intuition and understanding. This book strives to give a guided tour of the development of various branches of mathematics (and what they're used for) that will give the reader this intuitive understanding. Features Treats mathematical techniques as tools, and areas of mathematics as the result of abstracting and generalizing earlier mathematical tools Written in a relaxed conversational and occasionally humorous style making it easy to follow even when discussing esoterica. Unravels how mathematicians think, demystifying math and connecting it to the ways non-mathematicians think and connecting math to people's lives Discusses how math education can be improved in order to prevent future generations from being turned off by math.

If scientists can't touch the Sun, how do they know what it's made of? And if we can't see black holes, how can we be confident they exist? Gravitational physicist David Garfinkle and his brother, science fiction writer Richard Garfinkle, tackle these questions and more in "Three Steps to the Universe", a tour through some of the most complex phenomena in the cosmos and an accessible exploration of how scientists acquire knowledge about the universe through observation, indirect detection, and theory. From the Sun and black holes, the authors lead us further into the unknown, to the dark matter and energy that pervade our universe, where science teeters on the edge of theory and discovery. Returning from the depths of space, the final section of the book brings readers back down to Earth for a final look at the practice of science, ending with a practical guide to discerning real science from pseudoscience among the cacophony of print and online scientific sources. "Three Steps to the Universe" will reward anyone interested in learning more about the universe around us and shows how scientists uncover its mysteries.

Alien: Unlike in appearance, history, and thought. Alien: Distant, too distant to reach, too far to travel in a universe bound by the speed of light. Alien: They did not come, but they sent word, words so strange that humans would have to devote their lives to mimicking alien appearance, taking in alien history, and following alien thought in order to understand them. No longer so human, generation by generation these Humans-Reaching-to-the-Alien become Guests on their own world. Until some of the aliens, on a ship in a long slow two-hundred-year arc from world to world, announce that they are coming to Earth to welcome their hosts and Guests. Hearing of this, one voice cries out a different word for Alien: Monster