Surface Distribution of Charge

A tear drop shaped conductor on an insulating stand is charged. Charge is scooped up from various points on the surface of the conductor with a proof plane and transferred to an electroscope. It is demonstrated that the charge density is greater at the areas of greater curvature.


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Heat It Up!
Through a teacher demonstration using water, heat and food coloring, students see how convection moves the energy of the Sun from its core outwards. Students learn about the three different modes of heat transfer (convection, conduction, radiation) and how they are related to the Sun and life on our planet.
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Can an Occupation Become Unlawful? Israeli practices in the Palestinian territories and third party
Speaker(s): Professor Michael Lynk, Dr Valentina Azarova, Dr Federica Bicchi, Dr Victor Kattan, Hugh Lovatt | Editor's note: We apologise for the poor audio quality of this podcast. The Israeli-Palestinian conflict presents us with a paradox. While it has generated notable developments in international law, it seems to be unaffected by international law. Closing this apparent gap requires an examination of what international law stands for in the current situation, when Israel’s presence in th
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j - Phase 3- Initial Sounds
Introducing the j phoneme and the J grapheme.  Slides showing words beginning with the J along with a picture to go with the word.

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Monsoon Asia: Language
Part 2 in the Monsoon Asia series. This episode focuses on language distributions and patterns within the countries of Monsoon Asia. IU Southeast Instructor: Clint Franklin
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Autodesk Maya 2010 : Creating 3D Text
In the awsome new tutorial we learn to create some awesome 3d text in
maya with a bevel, then texture it uniquely and give it a background.
and then complete it with some lighting.
like always lots of cool tips

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Model of Clouds during Hurricane Isabel, 2003 (WMS)
The NASA finite-volume General Circulation Model (fvGCM) is used to produce a high-resolution weather prediction system. This model has an increased accuracy of predicting the strength and location of hurricanes over other prediction methods. Several variables are predicted, including cloud cover and precipitable water in the atmosphere. Data from Hurricane Isabel was used to validate the fvGCM model.
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Blood circulation through the adult zebra fish tail zoomed to the cellular level
The cell is the smallest living unit. The cell is made up of many organelles, such as the nucleus. The nuclei are the stationary red dots within each box cell.
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3.3 Data and information

This course is also about information, which in Subsection 2.1 was distinguished from data. Whereas data is a discrete item like a price or the name of a product such as milk, information links two or more items of data to give knowledge: e.g. the price of milk is 50p.

To give a simple example, if I said to you that I was standing at approximately 1 degree 40 minutes and 20 seconds longitude west (written 1°40′20″W), 55 degrees, 4 minutes and 57 seconds latitude
Author(s): The Open University

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Copyright © 2016 The Open University

Progression of Hurricane Frances, 2004 (WMS)
Hurricane Frances was the second hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached Florida from the Atlantic Ocean.
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Monthly Average Erythemal Index (UV exposure) for 2000-2001 (WMS)
The Erythemal Index is a measure of ultraviolet (UV) radiation at ground level on the Earth. (The word erythema means an abnormal redness of the skin, such as is caused by spending too much time in the sun--a sunburn is damage to your skin cells caused by UV radiation.) Atmospheric ozone shields life at the surface from most of the harmful components of solar radiation. Chemical processes in the atmosphere can affect the level of protection provided by the ozone in the upper atmosphere. This thi
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Introduction to Biology, Fall 2004
The MIT Biology Department core courses, 7.012, 7.013, and 7.014, all cover the same core material, which includes the fundamental principles of biochemistry, genetics, molecular biology, and cell biology. Biological function at the molecular level is particularly emphasized and covers the structure and regulation of genes, as well as, the structure and synthesis of proteins, how these molecules are integrated into cells, and how these cells are integrated into multicellular systems and organism
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Daily Erythemal Index (UV exposure) for 2000-2001 (WMS)
The Erythemal Index is a measure of ultraviolet (UV) radiation at ground level on the Earth. (The word erythema means an abnormal redness of the skin, such as is caused by spending too much time in the sun--a sunburn is damage to your skin cells caused by UV radiation.) Atmospheric ozone shields life at the surface from most of the harmful components of solar radiation. Chemical processes in the atmosphere can affect the level of protection provided by the ozone in the upper atmosphere. This thi
Author(s): Jeff DeLaBeaujardiere,Richard McPeters

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Rights not set

What Makes the News?
Students will be guided to think critically about the news, develop their own criteria to assess the elements of a newsworthy story, collect data on the local news and create their own news story.
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03 16 12 Summary of the Day's Main Topics
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Introduction to Citations
This is an introductory lesson is for
10 to 14 year old students embarking on
their first research paper.

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Learn Principles of Economics Online

Mises Academy: Robert Murphy teaches Principles of Economics

I am pleased to announce that in mid-April, we will begin another session of my Mises Academy online class: Principles of Economics. For those who missed the session a year ago, now is your Author(s): No creator set

Children's Alphabet, Part 2
This children's video teaches kids the alphabet using objects that
begin with each letter and have each letter later in the word. Running
through the alphabet twice, this video teaches children to distinguish
between uppercase and lowercase letters. (02:32)

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Hurricanes 101
Find out how hurricanes can be so destructive in this three-minute video. (02:52)
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Badgers Play Fighting
This short video gives excellent real life footage of two badgers play fighting in their den. This is a great resource to help build background knowledge and to help make real world connections between nature and the classroom. (00:30)
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