Collimation aligns a telescope's parts for the sharpest images. Most telescopes need collimation at some point; reflectors need it often. Tools like laser collimators or Chashires help align the ...

Getting your first telescope should feel exciting, not frustrating. If I avoid a few common beginner mistakes, I can turn ...

In analogy with the electromagnetic case, the main actors necessary for the appearance of both enhanced transmission and collimation in acoustics are the acoustic surface waves (ASWs). There are many ...

New observations from the National Science Foundation National Radio Astronomy Observatory's (NSF NRAO) Karl G. Jansky Very Large Array (NSF VLA) provide compelling evidence supporting a universal ...