WhalePower, based in Toronto, Ontario, is testing this wind-turbine blade at a wind-testing facility in Prince Edward Island. The bumps, or “tubercles,” on the blade’s leading edge reduce noise, ...

In an effort to develop renewable energy sources, engineers are looking for ways to build a better mousetrap. Or, in this case, windmill. As manufacturers continue to lower the cost of wind turbines ...

The U.S. Patent and Trademark Office on Tuesday issued Apple a patent for a cooling system that blows ionized air through an electronic device, controlling its path by creating electromagnetic fields ...