12.001 Introduction to Geology (MIT)
This undergraduate level course presents a basic study in geology. It introduces major minerals and rock types, rock-forming processes, and time scales; temperatures, pressures, compositions, structure of the Earth, and measurement techniques; geologic structures and relationships observable in the field; sediment movement and landform development by moving water, wind, and ice; crustal processes and planetary evolution in terms of global plate tectonics with an emphasis on ductile and brittle p
Author(s): Elkins-Tanton, Lindy

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12.086 Modeling Environmental Complexity (MIT)
This course provides an introduction to the study of environmental phenomena that exhibit both organized structure and wide variability—i.e., complexity. Through focused study of a variety of physical, biological, and chemical problems in conjunction with theoretical models, we learn a series of lessons with wide applicability to understanding the structure and organization of the natural world. Students will also learn how to construct minimal mathematical, physical, and computational mod
Author(s): Rothman, Daniel

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What Happens When Galaxies Collide?
Dr. Varoujan Gorjian takes us inside galactic collisions in this "Ask an Astronomer" video. (01:54)
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Organizing Your Research Paper
Learn how to organize your research paper from this video made by the University of South Florida libraries.  This video is very easy to follow with explicit directions given for each step of the organization process.
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14.772 Development Economics: Macroeconomics (MIT)
This course emphasizes dynamic models of growth and development. Topics covered include: migration, modernization, and technological change; static and dynamic models of political economy; the dynamics of income distribution and institutional change; firm structure in developing countries; development, transparency, and functioning of financial markets; privatization; and, banks and credit market institutions in emerging markets. This course contributes to the fulfillment of requirements for the
Author(s): Kremer, Michael,Townsend, Robert M.

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Grain growth in the shot model
The behaviour of the shot model as it is rearranged by tapping, starting from a polycrystalline state with many small grains and ending with much larger grains. Note the presence of vacancies in the structure. From TLP: Atomic Scale Structure of Materials, http://www.msm.cam.ac.uk/doitpoms/tlplib/atomic-scale-structure/index.php
Author(s): DoITPoMS, University of Cambridge

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Anisotropic quartz rotated between crossed polarisers
Anisotropic quartz rotated through 180° between crossed polarisers. The intensity of light transmitted through the analyser varies as a function of the angle of rotation of the quartz sample in the plane of the filters. At certain orientations, no light is transmitted. These "extinction positions" are found at 90° intervals. From TLP: Atomic Scale Structure of Materials, http://www.msm.cam.ac.uk/doitpoms/tlplib/atomic-scale-structure/index.php
Author(s): DoITPoMS, University of Cambridge

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CMS.405 Media and Methods: Seeing and Expression (MIT)
This class examines frameworks for making and sharing visual artifacts using a trans-cultural, trans-historical, constructionist approach. It explores the relationship between perceived reality and the narrative imagination, how an author's choice of medium and method of construction constrains the work, how desire is integrated into the structure of a work, and how the cultural/economic opportunity for exhibition/distribution affects the realization of a work. Students submit three papers and t
Author(s): Davenport, Glorianna

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Invertebrate Fossils - Lesson 16 - Part 3 of 7

In InvertebrateFossils - Lesson 16 - Part 3 of 7 you will learn about multi-cell advantagesand see and experiment that shows how multi-cell formation works.  Trilobites are also discussed, as is anIllustrated Geological time scale showing organisms from the Pre-Cambrian timeperiod.  An excellent informationalvideo on Invertebrate fossils.