Today's world requires that the human race come up with a cleaner, more efficient, and more nature-friendly solution to keep up with energy demands to power an economy. A lot of measures have been introduced, but Austrian engineer Franz Zotler's water gravitational vortex show the most promise and added value to it.

"Gravitational vortex"? It seems to sound like it's straight out of Star Trek or something. No, we won't be powering our homes with black holes any time soon. The gravitational water vortex is actually a lot more earthbound. It's essentially a whirlpool that gives us electricity and cleans the water all in one action.

If you've ever read about the principle of hydroelectric power plants, this one should be easy to visualize. With hydroelectric plants, the motion of the water runs a turbine that generates the Watts. However, dams have sometimes been accused of endangering local wildlife, spurring animal rights groups to cry foul. With this vortex system, fish will be safer than ever.

The vortex and the turbine can be set up on streams and rivers, with safety enclosures that will keep most unwanted objects out. If small fish do get in to the enclosure, there's still a very small risk of them getting harmed because the vortex system's turbine doesn't need to spin at high rates to churn out the power. The slow turbine velocity doesn't suck the critters in and allows them to get out of the zone with ease.