Usually, it's because the sperm gets into the fallopian tube before the egg is released. Once there, the sperm wait for an egg to arrive. After fertilization, it can take 5-10 days for the fertilized egg to begin to attach itself to the lining of the uterus. Pregnancy begins when this happens.
The arrangement of spikes originally had no distinct name; the term Thagomizer was coined in 1982 by cartoonist Gary Larson in his comic The Far Side, and thereafter became gradually adopted as an informal term within scientific circles, research, and education.
Max Wertheimer (April 15, 1880 â October 12, 1943) was an Austro-Hungarian-born psychologist who was one of the three founders of Gestalt psychology, along with Kurt Koffka and Wolfgang Koehler. KÃ¶hler he is known for his, Book Productive, thinking and for conceiving the phi phenomenon as part of his work In gestalt. psychologyax Wertheimer began the formal founding of Gestalt psychology in 1910 as he began experiments on the phi phenomenon. He published these experiments in a paper titled Experimental Studies on the Perception of Movement. The phi phenomenon is apparent movement caused by alternating light positions.