In most scopes the objective lens is the optical component which gathers light from the observed object and focuses the light rays to produce a real image. ... The refracting telescope was one of the first telescopes, but it is not the sole method for viewing the stars. ... Unlike other designs the sealed tube protects the optical components from damage and from image degrading air currents thus making it a rugged little device (Sharma, 1). ...

• Word Count: 1351
• Approx Pages: 5
• Grade Level: High School

JOURNEY OF LIGHT Light is the most important phenomena around us .It makes us see things of this world. How strange it is that light which removes darkness has itself been in dark for long. What is the nature of light? Is it a particle or wave? Although few ancient civilizations ...

• Word Count: 716
• Approx Pages: 3
• Grade Level: High School

As an object moves, it's mass increases, and time goes slower for the object. Exactly determining the position and momentum of an object is impossible. A particle is mostly here, but partially there, and partially somewhere else. A vacuum consists of electrons with negative mass. In vacuum, particles appear out of nothing for a very short period of time and then disappear. ...

• Word Count: 3720
• Approx Pages: 15
• Grade Level: High School