Monday, March 31, 2008

Sunday, March 30, 2008

Monday, March 24, 2008

Resolution
Resolution is measured in megapixels. The higher the megapixels, the sharper and more detailed the pictures your digital camera can take, and the bigger you can enlarge them without losing the sharpness of the image. 3.1 megapixels and higher is usually considered sufficient for print-quality photos. Photos with a resolution of less than 3.1 megapixels are best viewed only on computers
bandwidth
Definition:
Web bandwidth refers to the maximum speed at which content can streamed to individual users over the Internet. The speed of an individual bandwidth is dependent upon the modem that is accessing the content as well as the speed of the web service that is distributing the content.
It is suggested that personal users have at least a 700kbps bandwidth to accesses web video.

Sunday, March 23, 2008

Question: Does the Earth’s magnetic field affect human health?

Answer:
Not directly, no. High-altitude pilots can experience enhanced levels of radiation during magnetic storms, but the hazard is due to the radiation, not the magnetic field itself. Direct effects on human health of the magnetic field at the Earth’s surface are, quite frankly, insignificant. The primary effects of geomagnetism are on the health of electrically-based technological systems that are critically important to the modern civilization of humanity, not the humans themselves.

What is a Magnetic Field?

http://solar.physics.montana.edu/YPOP/Spotlight/Magnetic/what.html