David van Woerkom has won the 2015 NTvN Prize. Each year, the Nederlands Tijdschrift voor Natuurkunde (NTvN) awards a prize to a young physicist or astronomer who has written an outstanding article about his or her research. According to the jury, David van Woerkom, PhD student at the Quantum Transport group in Delft, did exactly that in his article: 'Honderd biljoen deeltjes, niet één meer of minder!', which appeared in the March 2015 edition of the NTvN.