Masters of Doom is the amazing true story of the Lennon and McCartney of video games: John Carmack and John Romero. Together, they ruled big business. They transformed popular culture. And they provoked a national controversy. More than anything, they lived a unique and rollicking American Dream, escaping the broken homes of their youth to produce the most notoriously successf...(展开全部)

What is time? This question has fascinated philosophers, mathematicians, and scientists for thousands of years. Why does time seem to speed up with age? What is its connection with memory, anticipation, and sleep cycles? Award-winning author and mathematician Joseph Mazur provides an engaging exploration of how the understanding of time has evolved throughout human history and...(展开全部)

沃尔特・阿尔瓦雷斯（Walter Alvarez），美国国家科学院院士，美国加利福尼亚大学伯克利分校地质学和地球物理学教授。其父路易斯・阿尔瓦雷斯（Luis Alvarez）是该校物理学教授，曾因发现许多亚原子粒子而荣获1968年诺贝尔物理学奖。在很大程度上，查明天体撞击地球如何导致恐龙灭绝，应归功于这父子俩的密切合作。

沃尔特・阿尔瓦雷斯（Walter Alvarez），美国国家科学院院士，美国加利福尼亚大学伯克利分校地质学和地球物理学教授。其父路易斯・阿尔瓦雷斯（Luis Alvarez）是该校物理学教授，曾因发现许多亚原子粒子而荣获1968年诺贝尔物理学奖。在很大程度上，查明天体撞击地球如何导致恐龙灭绝，应归功于这父子俩的密切合作。

Sixty-five million years ago, a comet or asteroid larger than Mt. Everest slammed into the Earth, causing an explosion equivalent to the detonation of a hundred million hydrogen bombs. Vaporized impactor and debris from the impact site were blasted out through the atmosphere, falling back to Earth all around the globe. Terrible environmental disasters ensued, including a giant ...(展开全部)

沃尔特・阿尔瓦雷斯（Walter Alvarez），美国国家科学院院士，美国加利福尼亚大学伯克利分校地质学和地球物理学教授。其父路易斯・阿尔瓦雷斯（Luis Alvarez）是该校物理学教授，曾因发现许多亚原子粒子而荣获1968年诺贝尔物理学奖。在很大程度上，查明天体撞击地球如何导致恐龙灭绝，应归功于这父子俩的密切合作。

Sixty-five million years ago, a comet or asteroid larger than Mt. Everest slammed into the Earth, causing an explosion equivalent to the detonation of a hundred million hydrogen bombs. Vaporized impactor and debris from the impact site were blasted out through the atmosphere, falling back to Earth all around the globe. Terrible environmental disasters ensued, including a giant ...(展开全部)

沃尔特・阿尔瓦雷斯（Walter Alvarez），美国国家科学院院士，美国加利福尼亚大学伯克利分校地质学和地球物理学教授。其父路易斯・阿尔瓦雷斯（Luis Alvarez）是该校物理学教授，曾因发现许多亚原子粒子而荣获1968年诺贝尔物理学奖。在很大程度上，查明天体撞击地球如何导致恐龙灭绝，应归功于这父子俩的密切合作。

NOTHING EVER REALLY ENDS. The world of Watchmen collides with the DC Universe in a story that rewrites the past, present, and future of comics! Dr. Manhattan, a near-omnipotent being from the Watchmen universe, has been using his powers to rewrite the DC Universe--reshaping some heroes' histories, erasing other heroes altogether, and playingwith the fates of the good and evil a...(展开全部)

NOTHING EVER REALLY ENDS. The world of Watchmen collides with the DC Universe in a story that rewrites the past, present, and future of comics! Dr. Manhattan, a near-omnipotent being from the Watchmen universe, has been using his powers to rewrite the DC Universe--reshaping some heroes' histories, erasing other heroes altogether, and playingwith the fates of the good and evil a...(展开全部)