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Journal home : Nature Raphael Lis, Charles C. Karrasch, Michael G. Poulos, Balvir Kunar, David Redmond, Jose G. Barcia Duran, Chaitanya R. Badwe, William Schachterle, Michael Ginsberg, Jenny Xiang, Arash Rafii Tabrizi, Koji Shido, Zev Rosenwaks, Olivier Elemento, Nancy A. Solipsism Solipsism ( i/ˈsɒlɨpsɪzəm/; from Latin solus, meaning "alone", and ipse, meaning "self")[1] is the philosophical idea that only one's own mind is sure to exist. As an epistemological position, solipsism holds that knowledge of anything outside one's own mind is unsure; the external world and other minds cannot be known and might not exist outside the mind. As a metaphysical position, solipsism goes further to the conclusion that the world and other minds do not exist. Varieties[edit] There are varying degrees of solipsism that parallel the varying degrees of serious skepticism.

MacroHistory : World History Teach the Earth Finding Visuals, Classroom Activities, Course Descriptions and People Undergraduate Introductory Geoscience Courses, Upper Level Geoscience Courses, Two-Year Colleges, and K-12 Classrooms Strengthening Your Teaching Research on Teaching and Learning | Designing Courses | Assessment | Teaching Large Classes | Quantitative Thinking | Teaching in the Field | Teaching with Current Research and Data Popular Topics GIS | Earth Systems Science | Oceanography | Plate Tectonics | Volcanoes | Earthquakes | Tsunamis | Hazards | Climate Change and Global Warming | Energy | Sustainability | Ozone | Evolution | Red Tide and Harmful Algal Blooms | Weathering and Rock Cycle

NSDL.org - National Science Digital Library What's That Stuff? You might ask yourself... What's That Stuff? Ever wondered about what's really in hair coloring, Silly Putty, Cheese Wiz, artificial snow, or self-tanners? C&EN presents a collection of articles that gives you a look at the chemistry behind a wide variety of everyday products. Sort: Alphabetically (Text Only) | Most Recent KHAN ACADEMY Lectures - World’s Top Scientists Posted on Thursday June 18, 2009 by Staff Writers By Sarah Russel Unless you’re enrolled at one of the best online colleges or are an elite member of the science and engineering inner circle, you’re probably left out of most of the exciting research explored by the world’s greatest scientists. But thanks to the Internet and the generosity of many universities and online colleges, you’ve now got access to the cutting edge theories and projects that are changing the world in this list below. If you’re looking for even more amazing lectures, check out our updated list for 2012 with more talks from great minds. General