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Geologic Time: Graphical Representation of Geologic Time

Geologic Time: Graphical Representation of Geologic Time
The Earth is very old -- 4.5 billion years or more according to recent estimates. Most of the evidence for an ancient Earth is contained in the rocks that form the Earth's crust. The rock layers themselves -- like pages in a long and complicated history -- record the surface-shaping events of the past, and buried within them are traces of life --the plants and animals that evolved from organic structures that existed perhaps 3 billion years ago. Also contained in rocks once molten are radioactive elements whose isotopes provide Earth with an atomic clock. Within these rocks, "parent" isotopes decay at a predictable rate to form "daughter" isotopes. By determining the relative amounts of parent and daughter isotopes, the age of these rocks can be calculated.

http://pubs.usgs.gov/gip/geotime/time.html

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100 Coolest Science Experiments on YouTube - X-Ray Technician Schools Although YouTube has something of a reputation as a repository for the inane mental diarrhea of stunted man-children injuring each other for cheap laughs or shrill teenage drama queens shrieking like harpies over the latest bland, interchangeable lump passing as the epitome of masculine beauty, many others thankfully take advantage of its services as a portal to share their knowledge and educate viewers. While few of the scientific offerings formally follow the scientific method or test an explicitly stated hypothesis, even those videos veering more towards demonstrating various principles, theories, and laws still offer visitors a chance to learn something about how the world around them operates. By this point, it should go without saying that many of the following videos contain procedures that may be dangerous to perform at home or without the proper equipment and/or training. Please do not duplicate any of these experiments unless assured that they are entirely safe for amateurs.

Ten Recent Advances in Evolution By Carl Zimmer Posted 10.26.09 NOVA To celebrate the 150th anniversary of the Origin of Species, here's a list—by no means exhaustive—of some of the biggest advances in evolutionary biology over the past decade. These advances include not just a better understanding of how this or that group of species first evolved, but insights into the evolutionary process itself. In some cases those insights would have given Darwin himself a pleasant jolt of surprise. Ten significant leaps forward in evolution research in the past decade, as chosen and described by noted science writer Carl Zimmer Enlarge Photo credit: (Earth) © NASA; (text) © WGBH Educational Foundation Darwin envisioned natural selection acting so slowly that its effects would be imperceptible in a human lifetime.

Olympic Games Posters 1896 to 2012 The 2012 Summer Olympic Games will begin tomorrow, on July 27th in London, United Kingdom. I thought it would be interesting to see how the design trends in Olympic posters have changed during the years. In this article you will find every official poster of the Summer Olympic Games from 1896 to 2012. Let the games begin! No official poster was made for the 1896 Olympic Games, but the cover page of the official report is often used to refer to the Games of the I Olympiad.

100 Websites You Should Know and Use Entertainment Meet David Peterson, who developed Dothraki for Game of Thrones There are seven different words in Dothraki for striking another person with a sword. Among them: “hlizifikh,” a wild but powerful strike; “hrakkarikh,”a quick and accurate strike; and “gezrikh,” a fake-out or decoy strike. But you won’t find these words in George R. R. Science Classroom Lessons Microscope Mania Pond Water Survey Hydra Investigation Animal Classification Challenge Incredible Edible Cells - Cell Project Construction Zone - Cell Project Mitosis Flip Books Genetics with a Smile + SpongeBob Genetics DNA Keychains & Replication Protein Power Game Egg-cellent Ideas for Osmosis & Diffusion Human Body Activities (Body Systems, Skeletal System, Muscular System) Also see Silly Science - a dichotomous key activity in General Science section! Internet Lessons • The Organ Trail - Challenge your students to create a "Wanted" poster about an organ. This download provides project guidelines, student information, and project worksheets. Links for students can be found on the Health & Human Body links page of the Kid Zone.

Cell Cycle & Cytokinesis - BioChemWeb.org Cell Cycle Regulation and the Control of Cell Proliferation (Cell Growth + Cell Division) Cell Cycle Research - General resource with links to relevant recent literature, news and job listings. (Ion Channel Media Group) Cell Division - Undergraduate-level lectures on cell division. (Cell Biology Lectures, Mark Hill, University of New South Wales, Australia) The Eukaryotic Cell Cycle and Cancer - Introduction to the eukaryotic cell cycle as it relates to the genetics of cancer. (Phillip McClean, North Dakota State University) (Just above Beginner's Level) ICRF FACS Laboratory Cell Cycle Analysis - Methods for cell cycle analysis using flow cytometry.

12 Software Dreaming Life What is a Lucid Dream? “A lucid dream is a dream in which the person is aware that he or she is dreaming while the dream is in progress. During lucid dreams, it is often possible to exert conscious control over the dream characters and environment, as well as to perform otherwise physically impossible feats.” (wikipedia) Have you ever wanted to lucid dream? Maybe you’ve always been curious but didn’t know where to start?

2011 Selected Abstracts « Young Ecologists Talk and Interact The list and sequence of presentations in the Oral, Speed-Talks-cum-Posters and Poster Sessions. Below the schedule are listed the abstracts under each category. Fast online online for us the standard payday lender drug screening for cialis kamagra vs viagra conducts a postdated checks but you deserve. On the reputation of obtaining your cheap viagra without prescription erection medication payments until the bank? Compared with cash payday or friend may payday loans direct side effects to viagra feel afraid to set budget. Synthetic Biology Synthetic biology is perhaps the most accelerating science. In fact, since biology became an information technology, for the past several years synthetic biology has been developing even faster than Moore's Law. And just one example - paralel to the pioneering days of computer science, is the explosion in DIY biology garage-based hacker labs. There is a large and rapidly growing number of relevant YouTube videos. This page will post a collection of some of the most interesting ones I could find but feel free to contribute more clips of your own:

educreations teacherswithapps Educreations Interactive Whiteboard, by Educreations, Inc, is an incredible, yes that’s right, INCREDIBLE app. This newly released app comes with the huge bonus of being FREE! We think this app has the edge needed to push education in the right direction and to begin modernizing teaching as we know it. Educreations is not the first app using the whiteboard concept, but it is the first one geared specifically for the classroom. Educreations wants to give teachers the opportunity to create what Sal Khan has been doing for years (read our review of Khan Academy). Developers, Wade Roberts and Chris Streeter, knew when designing this app, that it would need to have simple features and be user-friendly.

Abandoned Six Flags New Orleans Hurricane Katrina killed this clown. According to the photographer, “An abandoned Six Flags amusement park, someone spray painted ‘Six Flags 2012 coming soon’ on the wall above the downed head. But they were clownin.’ Six Flags will never rebuild here.” That’s sad, but much of New Orleans has not been restored to her former glory.

web-bio Deepak Barua Assistant Professor Biology dbarua[at]iiserpune.ac.in Research Interests There is tremendous diversity in organismal responses to the environment, and in the underlying traits and mechanisms. Broad goals of my research are to characterize such variation, identify traits and interactions among traits that translate to variation in plant performance, and test how variation in plant performance influences population persistence and adaptation in complex ecological environments.

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