busbars can have a cross sectional area of as little as 10 square millimetres 0 016 sq in but electrical substations may use metal tubes 50 millimetres 2 0 in in diameter 20 square millimetres 0 031 sq in or more as busbars
IQ bell curve. Standardized IQ tests are designed so that the exact average (mean) IQ score in the general population is 100. An âaverage IQ scoreâ or ânormal IQ scoreâ can be defined as a score between 85 and 115. 68% of people score between 85 and 115. The Mensa qualifying IQ score is a score that puts you in the top 2% of the population in a bell curve like this one. The Mensa qualifying score is 130 or higher, as shown below.
More notes on High IQ and Genius IQ: Einstein was considered to only have an IQ of about 160. Mensa is a society for people with high IQ, in the top 2% (1 in 50). In 1926, psychologist Catherine Morris Cox published a study of the most eminent men and women who had lived between 1450 and 1850 to estimate what their IQs might have been.