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Noted physicist and export on rare planetary Phenomenon, Dr. Nicholas Wisenheimer gave a talk at St Louis University last week. In his discussion, Wisenheimer caused a great uproar when he announced to the students that a Black Hole would appear somewhere in the St Louis area. Using mathematical formulas and statistical probability charts, Wisenheimer proceeded to explain how the Black Hole would form. Among the equations Wisenheimer shared, the following formula was given for computing the mass of a Black Hole:

Using this formula, Wisenheimer concluded that calculating the mass could also be used to help determine the approximate location of the Black Hole before it appeared. Wisenheimer shared four locations which he believed were probable using the formula, although he admitted to be unable to calculate a precise location.
N38° 36.036' W090° 17.233'
N38° 37.437' W090° 18.616'
N38° 35.960' W090° 21.226'
N38° 34.659' W090° 19.150'

After discussing the size of the Black Hole, he also explained the defining feature: the appearance of an event horizon--a boundary in space-time through which matter and light can only pass inward. Due to its geographic location in the Midwest between the north and south poles, Wisenheimer concluded that St Louis was the ideal location for such a phenomenon to occur. Wisenheimer explained that there was a way to disrupt the event horizon --a gravitational disruption. Since the event horizon requires very special conditions, any form of gravitational disruption could keep the event horizon from occurring. Wisenheimer's final charge to the students was to determine the location of the event horizon and proceed to the location to leave a marking there.
You can check your answers for the puzzle here.
