How to determine the height of a skyscraper with a barometer

The best joke in weeks. I’ve heard parts of it before, but never the whole thing. Enjoy (you might want to study Physics- if you did not do that or are not doing that already- after this :-)):

This concerns a question in a physics degree exam at the University of Copenhagen: “Describe how to determine the height of a skyscraper with a barometer.”
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Chapeau bas, inca o data! Cred ca e chapeau^4

Desi a facut si oaresicare prostii inextricabile (pe care prefer- let me rephrase: am un strong preference – sa nu le discut) care la un moment dat m-au determinat sa ma intreb daca plusurile sale nu au fost decat variatii de la o medie dominant-mediocra, sunt fericit sa descopar ca Darius Groza e categoric pe calea cea buna (alternativ, in cel mai rau caz, “dezvoltarea” sa poate fi descrisa printr-o miscare browniana cu un drift pozitiv :-)).
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