彗星》一书讲述罗塞塔太空探测器的精彩故事以及以Tchoury彗星为目的地的星际穿越之旅。它的任务 是找到地球所在太阳系的起源和地球生命初现的线索。本书追随一段时长十年、穿越太阳系横跨数百万公里的航程，罗塞塔进入了彗星运行轨道。它的着陆器，菲莱，一所微型科学实验室 直接降落至彗星Tchoury的表面并拍摄现场照片。 本书呈现了此次科学探索的重大胜利，本书从航行带回来的大量照片中挑选*好的部分。本书结构围绕罗塞塔之旅的多个阶段构建：离开地球，冲破大气层，眺望家园之光逐渐远去；掠过月球，接近火星；投入宇宙璀璨繁星，靠近彗星；*终，降落在Tchoury彗星上。这些照片都配备一段说明文字，反映任务目标和人类从这一项科技壮举中取得的成就。本书详细的图片说明为读者提供通俗易懂的科学信息，让读者能够进入主题核心。
Most people think of yoga as a solitary activity that isinherently therapeutic. While that is generally true, yoga posesand breathing practices can also be prescribed for specific healthproblems—often in combination with dietary advice taken fromAyurveda, traditional Indian medicine. Yoga Therapy is an essentialguide for yoga teachers, advanced practitioners, and anyone whowants to make therapeutic use of yoga. A. G. and Indra Mohanprescribe postures, breathing techniques, and basic Ayurvedicprinciples for a variety of common health problems, includingasthma, back pain, constipation, hip pain, knee pain, menstrualproblems, and scoliosis. Yoga Therapy is one of the few books that shows yoga teachers howto put together appropriate yoga sequences and breathing techniquesfor their students. Mohan details how to correctly move into, hold,and move out of poses, how to breathe during practice to achievespecific results, and how to customize a yoga practice by creatingsequences of yoga poses for a particular pers
