Hemisphere is the exact half of a sphere. 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.
Falling dreams also often reflect a sense of failure or inferiority in some circumstance or situation. It may be the fear of failing in your job/school, loss of status, or failure in love. You feel shameful and a lost sense of self-esteem You are unable to keep up with the status quo and feel that you don't measure up.
When you have a dream that your crush likes you back, kisses or hugs you, then it reflects your attraction or infatuation, and inner hopes and desires to be with that person. It can also represent your optimistic outlook about how that person may feel about you.. If you find yourself thinking about your crush frequently or see them on a daily basis then this can cause you to dream of that person during the night. The frequent dreams about your crush may also be a subconscious desire to let this person know your true inner feelings, especially if the dreams are positive.