How Are Incandescent Light Bulbs Made?
Bulb jQuery(document).ready(function(){ jQuery(‘#jsArticleStep1 span.image a:first’).attr(‘href’,’http://i.ehow.com/images/a04/m8/nr/how-incandescent-light-bulbs-made-1.1-800X800.jpg’); }); Bulb with silica “frosted” sides What we think of as a “light bulb” is actually an incandescent lamp was marketed widely as the first practical electrical grid was built at the turn of the 20th century. Even though today’s tungsten-halogen incandescent lamps are more efficient than early carbon filaments, they are much less efficient users of energy than newer types of lamps that use florescent technology. The U.S and many other countries have established laws that will phase out many incandescent lamps by the middle of the 21st century. Incandescent “light bulbs” will still be around—just in more efficient forms. The “bulb” in an incandescent lamp was originally blown by a glassblower but today is made on a perforated conveyor belt called a “ribbon machine” that can blow dozens of glass bulbs at
