The animation below illustrates how gravitational waves are emitted by two neutron stars as they first orbit each other and then coalesce. Though gravitational waves were predicted to exist in 1916, actual proof of their existence wouldn't arrive until 1974, 20 years after Einstein's death.
Uroabdomen can result from various causes, but the most common is related to trauma. Damage to the kidney, ureter, bladder, or urethra may cause urine to leak into the abdomen. Some common forms of trauma that can result in a disruption of the urinary tract in cats include:
It seemed if my bladder was leaking urine or a kidney or ureter leakin urine in abdomen causing flank pain , pain in kidney area on back , low back pain terribly bad .after drinking in about 20 minutes my kidney hurts, and I am having to wear a foly cath keeping bladder empty to stand the pain better.