ENERGY PIONEERS

http://www.kids.esdb.bg/science.html

Science and energy

A Gallery of Energy Pioneers

Andre Marie Ampere Johannes Georg Bednorz Edward Alexander Bouchet Anders Celsius David Nelson Crosthwait                   Marie Curie John Frederic Daniell Lee De Forest Rudolf Diesel Edwin Laurentine Drake   John Presper Eckert Jr. Thomas Alva Edison Albert Einstein Gertrude B. Elion Michael Faraday   Sebastian Ziani de Ferranti

USES OF ENERGY

Uses of energy  http://www.kids.esdb.bg/uses.html The purpose of producing energy is to meet three types of societal needs: - Mechanical work (electrical equipment, for example) - Heating supply - Heat removal (cooling systems) Energy does not disappear, it merely changes form. Different forms of energy have different qualities and degrees of usefulness ...  more Heat production  Combined Heat and Power systems use fuels, both fossil and renewable, to produce electricity or mechanical ...  more     Electricity production  Electricity generation was first developed in the 1800's using Faradays dynamo generator. Almost 200 years later we are still using the same ...  more     Uses by sources  All forms of energy are stored in different ways, in the energy sources that we use every day.  These sources are...  more     Uses by sectors  The industrial sector uses about one-third of the total energy. The residential and commercial sectors combined use even more than this ...  more

Kinetic and Potential Energy

Earth's Layers

Erosion, volcanoes and much more!

What do you get if you mix erosion, volcanoes, a hot and dry climate and the Colorado River? If you’re really lucky and have a lot of time – at least a million years – you get the Grand Canyon. 
Located in Arizona, this huge hole in the ground shows the Earth – right down to the bone.
Erosion takes a long time to turn a desert floor into a Grand Canyon. Some scientists believe it took as long as six million years. Others believe it was much faster, taking only one million years. Either way, it was a long time!

http://www.kidsgeo.com/geology-for-kids/0060-weathering.php

Slow Changes

Erosion and weathering  (source: http://www.kidsgeo.com/geology-for-kids/0078-erosion-by-streamflow.php)

Wind Erosion (Photographer: B Rosen / Flickr) (click-2-enlarge)



 

Water erosion
Rivers and streams are moving bodies of draining water, that have a tremendous amount of force. Because of their strength, streams and rivers can cause a great amount of erosion.


Deposition

Dunes are made of sediment carried and deposited by wind. They keep their characteristic shapes even as they move. The Kelso Dunes are in the Mojave Desert.