Physicists have recently proposed a test to determine whether or not loop quantum gravity exists. Before understanding the importance of the test (or the test itself), first we need to understand what ...

On Friday morning I did my semi-annual Loop 610 Driver's Test, and got all the way around without any trouble. Ever since I turned 75 I've taken this test a couple of times a year, to see if I'm ...

You can purchase test equipment that will allow you to examine the loop gain and loop phase properties of an operating feedback loop and, that purchased equipment will deliver useful results over a ...