Ocean Motion Ocean Motion
Not all hydroelectric power has to come from dams.
Today, about 20 percent of the world’s power is hydroelectric. Nearly all of that water-generated energy is made by forcing rivers to flow through dams. But rivers make up just a small percentage of the water in the world. The ocean, however, occupies two-thirds of the Earth’s surface and is constantly moving. That motion can spin turbines to create power, the ocean is full of potential energy just waiting to be tapped.
The first major “wave farm” opened in Aguçadoura Wave Park off the coast of Portugal last year. Made up of worm-shaped devices that generate energy from the up-and-down motion of the waves, the farm produces enough energy to power 1,500 houses in Portugal with only three wave-energy devices (expansion is planned). Other wave parks, off the coasts of Scotland and Oregon, for example, are still in the planning stages.
Early tidal power functioned the same as damming rivers, and could seriously damage to the environment. Today, tidal power operates much the same as wind power, creating power as tides push water back and forth past a turbine. Tidal-power generation of this sort was tested successfully with six turbines in New York’s East River, and may soon start appearing in other rivers around the world.
The Gulf Stream flows at a rate of 8 billion gallons per minute—50 times more than all of the rivers in the world put together. Researchers at the Center for Ocean Energy Technology in Florida are working on a prototype turbine sturdy enough to withstand the rough underwater conditions, which they hope to test by this fall, though full-scale power generation could be as much as a decade away.
LEARN MORE Check out GOOD’s interview with Matthew Simmons, an oil investor turned wave-energy advocate here.
There’s A Surprising Weapon In The Battle For Soldiers’ Mental Health “Wait, what? The Army has an arts and crafts department?” Yes it does, and for good reason.
The Best Frames From The Anti-Gay Jehovah’s Witness Propaganda Video Come on a journey of intolerance, won’t you?
The Evolution Of American Public Opinion Towards Refugees Neither our doors nor our minds have opened much since WWII Spoiler: It hasn’t evolved that much
An MRI Of Opera Singer Michael Voll Performing Wagner He sang “Song to the Evening Star” by Wagner
Welcome To The Future. Would You Like Some 3D Printed Milk? Dutch scientists are trying to make animal-free dairy products a reality
New Study Finds Mobile Device Addiction Among Teens Causes Conflict At Home ”It is causing daily conflict in homes.”
There’s A Surprising Weapon In The Battle For Soldiers’ Mental Health The Best Frames From The Anti-Gay Jehovah’s Witness Propaganda Video The Evolution Of American Public Opinion Towards Refugees An MRI Of Opera Singer Michael Voll Performing Wagner Welcome To The Future. Would You Like Some 3D Printed Milk? New Study Finds Mobile Device Addiction Among Teens Causes Conflict At Home Check Out This Artist’s Real Life Internet Restaurant Owner In Canada Gives Free Meals To Those In Need North Dakota Farmer Plows Prince’s ‘Love Symbol’ Into His Field The Justice Department Officially Put North Carolina’s Bathroom Bill On Notice That Was Quick: Ted Cruz Site Says Hillary Clinton Will Be The Next U.S. President Medical Errors Are Now The Third Biggest Killer Of Americans
The GOOD 100 Meet the remarkable individuals tackling pressing global issues today. The GOOD Guide to Recycling The objects we discard aren’t trash. They’re a resource. The Local Globalists Meet 17 innovators who are changing our future for the better. Project Literacy Building partnerships for a more literate future.