Henry F. Owens, III, comments on the death of Levi Hart
Excerpt from the Say Brother program investigating the events the night Levi Hart, a 14-year-old African American youth from Roxbury, Mass., was killed in a police chase. Hart, and two other Roxbury youths had stolen and car. When the officers caught up to them, Hart was shot, arguably by Richard Bourque, in an act of police brutality. Hart family attorney, Henry F. Owens, III, talks about the treatment minorities receive on the criminal side of the court, and the belief police were not going to
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GEOLogic: The Big Five Mass Extinctions
GEOLogic questions are puzzles that were developed to support students understanding of geoscience concepts while challenging them to develop better logic and problem solving skills. In this exercise, students are asked to match up the five largest mass extinction events with their relative dates, approximate duration, and severity (percentage of species that became extinct) based on clues given from various perspectives. This activity is appropriate for a high school science class or an introdu
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Viscosity of the Mantle: Constraints from Post-glacial Rebound
In this lab, students determine the viscosity of a relatively viscous fluid by measuring the rate of rebound of a partially submerged object following a rapid decrease in its mass. This experiment is carried out in the context of an analysis of post-glacial rebound as a measurement of the viscosity ...
Author(s): David Kohlstedt,Carleton College Science Education

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Were Dinosaurs Cold- or Warm-Blooded?: An Exercise in Scientific Inference
Both metabolic rates and brain masses are approximately 10 times as great in modern terrestrial warm-blooded animals (birds and mammals) as in cold-blooded terrestrial animals (reptiles) of the same body mass. This is one of several lines of evidence scientists have used to infer the mode of thermal regulation of dinosaurs and other extinct amniotes. In this exercise each student is assigned one of a number of dinosaurs. Students estimate brain mass from a drawing of a cranial endocast and body
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The second Space symposium- learning spaces
This presentation discusses the various elements that deem enterprise education spaces as fit for purpose
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http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

How To Add Explosive Power To Your Soccer Moves
Soccer Coach Mike Hefron demonstrates how to add explosive power to your beat-the-man moves on the soccer field in just 6 weeks.
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Cats Compilation
This 5 minute video shows various silly clips of cats and kittens, set to music. The video could be used as an introduction or hook to a story about cats with younger students. (5:04)
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Faculty Advising Session: Labor/Health/Employee Benefits / Employee Discrimination
Faculty Advising Session: Labor/Health/Employee Benefits / Employee Discrimination
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Dimity Hawkins - A global abolition treaty: getting us to zero - Nuclear disarmament forum
A global abolition treaty: getting us to zero Speaker: Dimity Hawkins International Campaign to Abolish Nuclear Weapons (ican). Who will stop nuclear next use? A public forum on nuclear disarmament organised by the Australia-Japan Civil Society Cooperation for Nuclear Disarmament, Nautilus Institute. We are getting towards the tipping point that will see disarmament. It has been 64 years in the making. There is a ground-swell developing. This week in Australia, the Joint Standing Committe
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Living in an Era of Global Terror
In this podcast, Professor Richard Aldrich from the School of Politics and International Relations, discusses the impact of globalisation, the opportunities this affords to global terrorists and the challenges faced by the intelligence services. Globalisation has led to a free flow of money, people and ideas, which has benefited many people in the West in recent years and enhanced our standard of living, but the price paid is a reduction in security. As we see a shift towards a de-regulated glo
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La pièce inébranlable (Vidéo)

Un clou ou une pièce inébranlable illustre la notion d’inertie pour un objet au repos.

http://phymain.unisciel.fr/la-piece-inebranlable/


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The Genesis of the 1918 Spanish Influenza Pandemic
Michael Worobey, Professor, Ecology and Evolutionary Biology, The University of Arizona The Spanish influenza pandemic of 1918 was the most intense outbreak of disease in human history. It killed upwards of 50 million people (most in a six-week period) casting a long shadow of fear and mystery: nearly a century later, scientists have been unable to explain why, unlike all other influenza outbreaks, it killed young adults in huge numbers. I will describe how analyses of large numbers of influenz
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Geological Perspectives on Climate Change
Throughout Earth’s history, mass extinctions of species were closely related to physical and chemical changes in the atmosphere and the oceans. These variations were controlled by heat from the sun, the distribution of oceans and continents, the extent of ice sheets; volcanic eruptions and asteroid impacts, air-borne particles, the eruption of methane and greenhouse effects. Greenhouse episodes were amplified by carbon dioxide and methane feedback effects from warming oceans and drying ve
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Twister: the Tornado Story
Tornadoes are capable of serious destruction. What gets them twisting? Where do they get their energy? How can we protect ourselves when a tornado is approaching?
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Using Mass Balance to Understand Atmospheric CFCs
In this activity, students use an interactive online mass balance model to help understand the observed levels of chlorofluorocarbon CFC-12 over the recent past. They then explore the influence of post Montreal Protocol emission scenarios on future CFC levels and discuss the relevance of this to stratospheric ...
Author(s): R. MacKay

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A Correlated History of Earth
This page describes a geologic timescale poster available for purchase. The site also contains an interesting essay: "A Galactic Orbit Model for Periodic Mass Extinction," discussing how clusters of impacts could cause periodic mass extinctions.
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SAMPEX - Yohkoh: Solar Modification of Relativistic Electrons in the Earths Radiation Belts
The Solar Anomalous and Magnetospheric Particle Explorer, SAMPEX, measures fluxes of energetic particles from the sun, the Earths magnetosphere, and cosmic ray sources over a broad range of energies. The four instruments aboard SAMPEX are the Low-Energy Ion Analyzer (LEICA), The Heavy Ion Large Telescope (HILT), The Mass Spectrometer Telescope (MAST), and the Proton-Electron Telescope (PET). The Soft X-ray Telescope on the Yohkoh satellite takes daily full-disk soft X-ray images of the Sun. Comp
Author(s): Berndt Klecker,Dan Baker,J. Cummings,L. Acton,Liam

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The Sport of Fencing
A short video that explains a bit of the history of fencing and shows some combat. It also goes into more detail about the types of weapons and how the winner is chosen. Of some value where fencing is taught as an introduction.   Run time 3:27
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Wildlife in India
Check out this terrific short video from explore.org on the wildlife in
India. The animals face the threat of extinction, and the anti-poaching
laws are not being truly enforced. Some, however, are doing great work
in attempting to reverse the destruction and protect India’s wildlife.
“People for Animals” is one such great organization, and the explore
team of explore.org filmed this inspirational short film.

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Revolutionary War Soldiers (re-enactors)
A video montage of Revolutionary War re-enactors in the field of battle. This video shows period uniforms, flags and weapons.(Music only; no narration)

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