How windmill power works
By: JJ Murphy
How Windmill Power WorksWindmills capitalize on the movement of air currents across the uneven surface of the earth as it heats up and cools down. Dry land heats up faster and cools down faster than the oceans. Areas closer to the equator receive more of...
By: Danielle Dames
Simple in design, but exquisite in its very simplicity, the modern day yurt has varied little from its traditional origins.Essentially a one-room structure, the Yurt is a communal space. Its open-plan style encourages a connection with those around you, as well as the surrounding...
By: Aradia Farmer
To harness solar energy you don't need an expensive set of solar panels and batteries. Glass, water, black plastic, and mirrors are all cheaper ways to amplify the effects of the sun on earth.A greenhouse in the sunlight can create an environment of 80F...
By: Janet Grischy
An aquifer is an underground layer of rock or gravel that is capable of holding water and supplying it to wells or springs. An aquifer may be a small strip supplying one or two mountain pools that go unnoticed except in spring, or it may...
By: Christopher Chatterton
What most people call "dirt" is being eroded at an alarming rate across most of the world's land mass and is not replaceable. Soil holds together the masses of entangled roots of the ever-shrinking Amazon rainforest in Brazil, but is being washed away by the...
Yellow dragon disease described
By: Denise Calaman
The state of Florida is facing a serious threat to its citrus crop, one that could potentially wipe out its entire citrus industry. The threat is called, Yellow Dragon disease, more commonly known as citrus greening. If more research isn't done and a cure found...
By: Harry Stevens
The history of the Earth is a very tumultuous one, one that began around 4.5 billion years ago. An essential part to the history of the Earth and the development of life as we know it is the Earth's atmosphere. The atmosphere is the...
why the leaves on trees turn upside down before a storm
By: Madison Briggs
The sky begins to darken and the summer breeze you have been yearning for all afternoon begins to stir and gather momentum. You glance upwards and notice the leaves on your maple or poplar trees have turned into a mosaic pattern of shimmering silver and...
Dutch elm disease described
By: B. Stone
Dutch elm disease (DED) is a fungal disease that attacks almost all species of elm trees. It is spread by the elm bark beetle, which carries the fungus from infected trees to healthy trees. DED is thought to have originated in Asia, where most of...
By: Annie M Manzi
The importance of ground water is immeasurable. Ground water is a great source of good quality water used for drinking and irrigation worldwide. It is the future source of clean water supply for future generations of people. New technology to bring up groundwater reserves will...

 

1 171 172 173 174 175 533