How many hexagon can you fin...How many hexagon can you find here?
Correct answers: 89
The first user who solved this task is Roxana zavari.
#brainteasers #math #riddles
Movie of sunspotsIn 1934, the first movie of the sun (other than of eclipses) was made at the McMath-Hulbert Observatory at Pontiac, Mich. Using a Spectroheliokinematograph, Robert R. McMath took moving pictures of solar prominenences or sun spots.