See how the equation form of Ohm's law relates to a simple circuit. Adjust the voltage and resistance, and see the current change according to Ohm's law.

PhET Interactive Simulations
University of Colorado Boulder
https://phet.colorado.edu

This Demonstration shows 3D bar charts of the periodic table with various element property values.

Time lapse movies of plant growth from germination to flowering, including tropic responses, nastic movement and circadian rhythms.

"This course provides an introduction to the chemistry of biological, inorganic, and organic molecules.ĺĘTheĺĘemphasis isĺĘon basic principles of atomic and molecular electronic structure, thermodynamics, acid-base and redox equilibria, chemical kinetics, and catalysis. In an effort to illuminate connections between chemistry and biology, a list of the biology-, medicine-, and MIT research-related examples used in 5.111 is provided in Biology-Related Examples. Acknowledgements Development and implementation of the biology-related materials in this course were funded through an HHMI Professors grant to Prof. Catherine L. Drennan."

Explores the interaction of radiation with matter at the microscopic level from both the theoretical and experimental viewpoints. Emphasis on radiation effects in biological systems. Topics include energy deposition by various types of radiation, including the creation and behavior of secondary radiations; the effects of radiation on cells and on DNA; and experimental techniques used to measure these radiation effects. Cavity theory, microdosimetry and methods used to simulate radiation track structure are reviewed. Examples of current literature used to relate theory, modeling, and experimental methods. Requires a term paper and presentation. The central theme of this course is the interaction of radiation with biological material. The course is intended to provide a broad understanding of how different types of radiation deposit energy, including the creation and behavior of secondary radiations; of how radiation affects cells and why the different types of radiation have very different biological effects. Topics will include: the effects of radiation on biological systems including DNA damage; in vitro cell survival models; and in vivo mammalian systems. The course covers radiation therapy, radiation syndromes in humans and carcinogenesis. Environmental radiation sources on earth and in space, and aspects of radiation protection are also discussed. Examples from the current literature will be used to supplement lecture material.

The aim of this course is to introduce the principles of the Global Positioning System and to demonstrate its application to various aspects of Earth Sciences. The specific content of the course depends each year on the interests of the students in the class. In some cases, the class interests are towards the geophysical applications of GPS and we concentrate on high precision (millimeter level) positioning on regional and global scales. In other cases, the interests have been more toward engineering applications of kinematic positioning with GPS in which case the concentration is on positioning with slightly less accuracy but being able to do so for a moving object. In all cases, we concentrate on the fundamental issues so that students should gain an understanding of the basic limitations of the system and how to extend its application to areas not yet fully explored.

Designed for use as a textbook in first-year college composition programs, written as a practical guide for students struggling to bring their writing up to the level expected of them by their professors and instructors.

This tutorial introduces the reader to some of the amazing capabilities of R to work with and map geographic data. Geographic data are data that contain spatial attributes (or spatial data) that define a geographic space (location, area, elevation, etc.) and non spatial attributes (f.e., population density, pollutant concentrations, temperature).

This tutorial was developed for one the units of the course “ENVS 420: Research Seminar in Environmental Sciences” offered at the University of Baltimore. However, it is hoped that readers outside of ENVS 420 who are interested in geospatial analysis and with a basic familiarity of R find this tutorial useful.

The use of an integrated developer environment (IDE) or an IDE like configuration such as the IDE RStudio (https://rstudio.com/) or the Nvim-R plug-in for the integration of vim/neovim and R (https://github.com/ jalvesaq/Nvim-R/tree/stable) is recommended but not necessary.

The tutorial was written with RMarkdown (v. 2.6) (Allaire et al., 2020; Xie et al., 2018, 2020) in R (v. 4.2.3) (R Core Team, 2020).

How does one teach science and engineering at the college level? It can be a daunting question, particularly for newly minted PhDs, but this rather fine course from the OpenCourseWare initiative at MIT offers high-quality suggestions. The site includes a syllabus, calendar, readings, video discussions, assignments, and other related resources. In the Syllabus area, visitors can learn about the basic lesson plans for the course. The Readings area has some great material, including sections on Teaching Equations, Course Design, Lecture Planning and Performing, and Political Barriers To Educational Change. Visitors should look over the Video Discussions area, which includes conversations with Professor Sanjoy Mahajan about the material. Finally, the site includes links to helpful books and other materials that will be most useful for those seeking further edification.

Plagiarism and copyright abuse have increased greatly as more and more people are producing content online. Learn how to use information correctly to create quality content while protecting the intellectual property of others.

Using the virtual microscope, students will zoom, pan, and rotate specimens in variable light conditions, helping to develop their classification and identification skills without need for high cost microscopes and thin section preparation facilities. The virtual microscope may be used as a complete collection or reused and repurposed individually, since each specimen will have a unique URL. The intention is to engage and excite students in Earth science using rocks of the British Isles held in key collections, and aid teaching of mineral and rock identification skills in HE institutions and schools. We plan to explore continued expansion of the initial collection by offering a digitisation service to HE institutions and industry.

A government sponsored website, American English is a resource center for teaching and learning about American English language and culture. This website provides a variety of engaging materials and resources for teachers' professional development and for students in the classroom. Both teachers and students will find new ways to practice English and learn more about the United States.