Another way dishwashers are made quieter is by cycling the water in between the middle / upper spray arm and the middle / lower spray arms. Cycling the water between the upper and lower zones allows the machine to run a little quieter. Most dishwasher decibel ratings are around 56 decibels. Itâs tough to imagine what that sounds like if youâve never known what to listen for. There are many different comparisons- imagine something like a gentle breeze through tall trees. My parents have a 56 decibel rated Bosch.
Mirages occur when there is a rapid shift in air density in the atmosphere -- when the air at one level is a lot hotter than the air at an adjoining level (check out this page to find out why hot air is less dense than cold air).
Eye floaters and flashes are caused by changes in the vitreous gel that occur as we get older. Eye floaters occur when the vitreous gel thickens or shrinks due to aging, causing particles to form in the gel. These particles block the light passing through your eye, casting shadows on the retina. The shadows are seen as floaters, which can be created by: The formation of protein clumps in the vitreous gel. These types of eye floaters tend to look like squiggles, cobwebs, tadpoles, or circles.