Definition of Hemisphere. Hemisphere is the exact half of a sphere. More About Hemisphere. When a plane cuts across a sphere at its center, it forms two hemispheres. Surface area of a hemisphere of radius r is given by 2pr2. Volume of a hemisphere of radius r is given by 2/3pr3.
First, low water in the toilet BOWL case. If the water in the toilet BOWL is low after flushing, I see four likely causes, in order of most likelihood -. 1) the fill valve is not putting enough water into the toilet bowl.
If the water refill valve on your toilet suddenly switches on after a period of inactivity, it can give the spooky impression of a ghost flushing the toilet, especially when it happens late at night. The cause of ghost, or phantom, flushing is easy to understand, and prevention is a straightforward maintenance issue.