Lower blood pressure naturally. Natural treatments such as meditation and diet can have a significant effect. Meditation, not medication, is the advice Robert Schneider, MD, gives when it comes to high blood pressure treatment. It's not his only advice, but it's right up there at the top of his list.
How Do Windmills Work? Windmills work by having blades that move and cause a rotating generator to form electricity. Discover how windmills have changed since the days of windmills that pumped water with information from a science teacher in this free video on physical science lessons. Part of the Video Series: Physical Science.
To the hub, the turbines are 229 ft. tall with 136 foot blades, meaning the height from the base to the tip the blade is 365 ft. The bases of the turbines are 11-16 feet in diameter and the foundations, which run 30 ft, into the ground, are 15.6 ft across. Each wind turbine weighs roughly 1450 tons. How do they work? Wind Turbines operate on a simple principle. The energy in the wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which spins a generator to create electricity. How fast do the blades turn? At the optimum wind speed of 25-35 mph, the blades will rotate at 14 rpm. That gives them a speed of 105 mph at the tip. How much electricity do they produce? Each turbine produces about 2,000,000 kilowatt hours (kwh) per year, enough energy to power as many as 500 typical homes at 12,000 kwh per year. How strong do the winds have to blow for the blades to rotate? Wind turbines start operating at wind speeds of around 8 mph and reach a maximum power output at around 33 mph. When there is not enough wind to turn the blades, or when there is too much wind the turbines shut down.