Chicken eggs
Eggs are the means through which chickens reproduce. Hens lay the eggs and incubate them so they will grow. The egg has all of the nutrients the chicken embryo needs to develop into a baby chick and helps protect it as it matures.
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Chestnut shell
Squirrels use their teeth to bite into and crack open chestnuts and other kinds of nuts. Their teeth leave marks on the nutshell after the squirrel has cracked it open to get the nut that is inside.
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TRMM Rainmap for September 1998: Africa
Monthly average rainfall over Africa for September 1998 as measured by TRMM. High rainfall rates are in red.
Author(s): Chris Kummerow,Greg Shirah

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TOMS Ozone at the South Pole: September Averages from 1979 through 2000
The year 2000s Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASAs Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the plan
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QM Eigenstate Superposition Demo Model
The EJS QM Eigenstate Superposition Demo model displays the time dependence of a variety of superpositions of energy eigenfunctions for the infinite square well and harmonic oscillator potentials. One of the eleven pre-set superpositions can be selected via a drop-down menu with the resulting wave function shown in phase-as-color representation. A table of the expansion coefficients is shown and can be edited. The width of the infinite square well potential can be changed via a slider.
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LABash Conference Patrick Dougherty
Patrick Dougherty is world renowned for his woven willow sculptures that brink on the border of natural environment (chaos) and man made structures (order). His work can be seeen at http://www.stickwork.net. His presentation was recorded Friday, March 25 as part of LABash 2011. LABash 2011 was held March 25-26 at Purdue University and was hosted by Purdue University's Landscape Architecture program.
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A special report on pensions
People in rich countries are living longer. Without big reforms they will not be able to retire in comfort, says Philip Coggan
Author(s): The Economist

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Forces and Graphing
This activity can be used to explore forces acting on an object, to practice graphing experimental data, and/or to introduce the algebra concepts of slope and intercept of a line. A wooden 2x4 beam is set on top of two scales. Students learn how to conduct an experiment by applying loads at different locations along the beam, recording the exact position of the applied load and the reaction forces measured by the scales at each end of the beam. In addition, students will analyze the experiment d
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1.9 Summary and conclusion: ‘take-away messages’
Are you about to undertake a PhD in science, technology or mathematics? If so, this unit will help you to examine your work processes. You will consider and develop the nature of postgraduate work and look at the planning of work needed at doctoral level.
Author(s): The Open University

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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

1.5.2 Validation and ‘so what’
Are you about to undertake a PhD in science, technology or mathematics? If so, this unit will help you to examine your work processes. You will consider and develop the nature of postgraduate work and look at the planning of work needed at doctoral level.
Author(s): The Open University

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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

Computer Technology
Students will learn the history of computers as well as how computers work.
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Poetry Analysis
Analyze poems for poetic devices and figurative language.
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What's Hot and What's Not
Students will investigate the behavior of heat and the movement of heat between objects by: conduction, convection, and radiation.
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Imagine Nature
This showcase of digital broadsides is devoted to nature poets and their work. Imagine Nature explores the convergence of poetry, graphic arts, and the technology of the Internet. Along with the text of the poem, some broadsides includes an audio reading (often by the author), photographs or original artwork, related nature sounds, or videos. The featured works include: "The Snakes of September" by Stanley Kunitz| "Sleeping In the Forest" by Mary Oliver| "St. Francis and the Sow" by Galway Kinne
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Leaf Litter Invertebrates of Central Park
Produced by the Center for Biodiversity and Conservation, this booklet provides an introduction to urban invertebrates. The book: Focuses on the species that live in city woodlands. Examines the human impact on leaf litter invertebrates and park rangers' conservation efforts. Lists 11 books for references and recommended readings available in English and Spanish. Can be downloaded as a PDF or ordered free of charge.
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Biodiversity and Human Health: A Guide for Policymakers
Produced by the Center for Biodiversity and Conservation, this guide summarizes the consequences of biodiversity loss for human health. The guide examines threats to global supplies of food and fresh water, exposure to formerly rare diseases and opportunistic infections, and loss of important sources of medicines.
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Meet the Authors of Baseball Prospectus 2011
March 25, 2011 - Meet the analysts of Baseball Prospectus 2011 who will provide a look at the upcoming season on the teams, their managers, and more than sixty players. Speakers include Steven Goldman, Jay Jaffe, and Marc Normandin.
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Inelastic Collision of Particles with Structure Model
The EJS Inelastic Collision of Particles with Structure model displays the inelastic collision between two equal "particles" with structure on a smooth horizontal surface. Each particle has two microscopic elements which interact through a massless spring of stiffness k and natural length L. The mass of one of the microscopic elements and the spring length of the connector spring can be changed via textboxes. You can modify this simulation if you have EJS installed by right-clicking within the p
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