Green EnergyEnergy that fits in with the ecosystem

Physics rotational work and energy problem?

A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center. Rotating flywheels provide a means for storing energy in the form of rotational kinetic energy and are being considered as a possible alternative to batteries in electric cars. The gasoline burned in a 196-mile trip in a typical midsize car produces about 1.62 x 109 J of energy. How fast would a 31.9-kg flywheel with a radius of 0.398 m have to rotate to store this much energy? Give your answer in rev/min.

KE = ½[½mr²]*w² → w = (2/r)*√(KE/m) = 3.581E4 rad/sec = 341964 rpm

Don’t worry however; only about 20% of the fuel is turned into mechanical energy. Ergo, the rpm required by the flywheel to take the trip is

341964*√(1/5) = 152930 rpm

Alternative Energy: SA Car Engine

Self-Healing with Sound and Music $11.80 Andrew Weil, M.D. & Kimba Arem Have you ever been deeply moved by a piece of music? If so, then you may already recognize the incredible impact of sound on your health and well-being. Today, sound therapy is used to effectively treat a surprising range of health challenges including chronic pain, stroke, stress, and much more. On Self-Healing with Sound & Music, bestselling author Dr. Andrew Weil …

The Ghost Meter EMF Sensor $24.77 …

Technology Alternatives 7021 Cell Sensor EMF Detection Meter $24.99 You might not know it, but certain areas in your home and work have powerful electro magnetic fields (EMFs) that can inflict severe damage to cellular DNA. Protect yourself against this invisible radiation by testing areas that you frequent with a gauss meter, a device that measures the strength of EMFs. Once you identify where EMF radiation hotspots are, simply avoid these areas. The accuracy of …

Hampton Direct Twin Draft Guard Window/Door Insulating Device with Over-the-Door Hook, Brown, 2-Pack $18.84 2 Twin Draft Guards keep out drafts, dust, odors and insects! This specially designed cloth-covered foam tube fits into your door casing to prevent cold air from entering during the winter and hot air from invading in the summer… and dirt, bugs and smells stay out, too! Simple to use… and the Twin Draft Guard stays put after installation! Use on interior and exterior doors of all types; Can be…

Fuel $13.76 Studio: Cinema Libre Studio Release Date: 06/22/2010 Run time: 111 minutes…

Universal Nutrition Animal Cuts Ephedra Free …

BSN N.O.-Xplode Extreme Pre-Training Performance Igniter, Fruit Punch 2.48 lb (1025 g) Dietary Supplement. Core series. Energy. Focus. Endurance. Strength. Pumps. Size. Aspartame free. CEM3 Technology. N.O.-Xplode Product Highlights: N.O.-Xplode is designed to support and enhance: Training energy, motivation and intensity; Mental alertness and focus; Muscle fullness, vascularity and pumps; Strength, power, endurance and work capacity; Resistance to muscle fatigue; Blood flow and del…