Showing posts with label focus. Show all posts
Showing posts with label focus. Show all posts

Tuesday, March 2, 2010

Compact Fluorescent Lamps In Focus

LinkGrand.com

Energy savings


CFLs use 70 to 80 percent less energy than incandescent bulbs. The typical incandescent lamp wastes 90 percent of the energy it uses since it produces heat rather than light. A 100-watt incandescent lamp may be replaced with a 20 to 23-watt CFL. Although CFLs may appear different than the common incandescent bulbs, CFLs fit most standard fixtures found in homes today. The screw-in base is the same for both lamps.

Long Life

CFLs last approximately 6,000 tto 10,000 hours. This is 8 to 13 times longer than the life of an incandescent lamp with an expected life of 750 to 1,000 hours.

Warm Light

Most CFLs have improved color rendition. The light is of a warm tone that is almost identical to that of an incandescent lamp. Most people can't tell the difference.


Savings chart - Quality CFL vs. quality incandescent bulb





Taken from The Philippine Star



Saturday, January 2, 2010

Earthquake


the often violent movement of the earth along a fault or fault zone due to tectonic upheaval caused by the sudden release of stress that has built up over some time. The focus is the point at which the earthquake originates within the earth and earthquakes are classified by depth of focus: shallow -- less than 70 km; intermediate -- 70-300 km; deep -- more than 300 km. Attempts to predict earthquakes rely upon measurement of stress increases, but can so far be related only to an increasing risk of activity.

Taken from Dictionary of Science