October 16, 2009
Hint: It gained fame/infamy in 2005.
Cracked by Raghuvansh , arun , Logik , krudebox , quaziluffy , Wasi Manazir , Rogi , xtremevarun , xtremevarun , udupendra , Martin , shenoyvarun86 , abhijeet , emrohit , achyuth , abhishek chakraborty , malcaluffin , byslexia , AC and sidsen
The Pitch Drop Experiment, which measured the viscosity of a drop of tar by letting it “drip” over a long period of time. It won the igNobel award in 2005.