Why Are There Black Holes In The Center Of Galaxies?
What affect does Saturn's moons have on the shape of its rings?
How do Solar Winds create X-Rays
What role do Black Holes play in the creation or recycling of the Universe?
What are space warps or time twists?
What would happen, if the earth spin was twice the velocity or half the velocity?
How do scientist measure the energy the sun is producing per hour?
Is a singularity within a black hole, a mathematical improbability?
How do scientist measure the energy the sun is producing per hour?
What happens if the earth magnetic field reverses, will all the electronics continue to work?
What are the Van Allen Belts? How much radiation is being generated by the belts?
What are the affects of solar flares on the earth's weather temperatures?
How much of an affect does the Sun have on earth's tides?
How do scientist prove the craters on the moon formed from asteroids and not volcanoes?
How do scientist know whether fusion reactions are occurring in a black hole?
What is a black hole, ring singularity?
updated 2010-07-18 02:32:44
comments: 0
Condenser Microphone
The electret condenser microphone (ECM) uses a special type of capacitor, which has permanent voltage built-in. It is like a permanent magnet since it does not require external power to operate. http://www.digikey.com/Web%20Export/Supplier%20Content/PUI_668/PDF/PUI_ElectretCondenserMicrophone%20Basics.pdf The ECM principal of operation is that sound waves impinge on the diaphragm, causing the capitance between it and the back plate to change at the same time. In turn, this induces an AC voltage on the back plate. http://www.digikey.com/Web%20Export/Supplier%20Content/PUI_668/PDF/PUI_ElectretCondenserMicrophone%20Basics.pdf The best ECMs usually include a pre-amplifier, which still require power. Otherwise, ECMs are the same as normal condensers. http://www.mediacollege.com/audio/microphones/condenser.html
updated 2010-08-24 17:44:00
comments: 0
How to Check Your Power-Steering Fluid Level
Once you've determined that you need to add more fluid, make sure you purchase the correct type of power-steering fluid by referring to your car's Owner's Manual. You can use a funnel to add the appropriate amount between the lower level line and the upper level. If you use too much, remove the excess fluid with a syringe or turkey baster.
Replace the cap, and you're ready to roll!http://news.carjunky.com/car_maintenance/how-to-check-power-steering-fluid-cdh085.shtml
updated 2011-05-10 20:38:27
comments: 0
Aircraft
- Manfred Von Richthofen aka "The Red Baron"
- Jim Mollison
- Amelia Earhart
- Harriet Quimby
- Charles Kingsford Smith
- Hannah Reitsch
- Michael King Smith
- Adolf Galland
- Charles Lindburgh
- Chelsey "Sully" Sullenberger
updated 2010-07-16 21:00:23
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