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National Geographic Magazine

National Geographic stories take you on a journey that's always enlightening, often surprising, and unfailingly fascinating.

BibMe: Free Bibliography & Citation Maker - MLA, APA, Chicago ...

BibMe Free Bibliography & Citation Maker - MLA, APA, Chicago, Harvard

Light-emitting diode - Wikipedia

A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons.

IIP Publications

Anti-Corruption: The Global Fight is a new handbook from IIP Publications that outlines the kinds of corruption, their effects, and the ways that people and governments combat corruption through legislative and civil society actions.

Great Energy Challenge -

Read the latest stories from National Geographic's Great Energy Challenge

Solar Ark - Wikipedia

The Solar Ark (ソーラーアーク) is an ark-shaped solar photovoltaic power generation facility which offers activities to cultivate a better appreciation of solar power generation, and thereby benefitting both ecology and science.

Transistor - Your mobile friendy science directory and ...

Please visit our 101 Science Store. The Transistor Story - "The transistor was probably the most important invention of the 20th Century, and the story behind the invention is one of clashing egos and top secret research."

Aircraft Spruce from Aircraft Spruce

AIRCRAFT SPRUCE CATALOG PDF DOWNLOAD : To view the files you'll need the Adobe Acrobat reader. If you don't have the Adobe reader, you can download it ahead of time from the Adobe Web site.

Last Word Archive | New Scientist

If a car moving at 100 kilometres per hour hits a concrete wall, all of its kinetic energy must be turned into other forms of energy. What are those forms, and can anyone describe the overall ...

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