Allan and Danny Gelman ’20 in one of the two Next House doubles that IS&T will convert to telecom receiver rooms this summer. Their room is Khan Academy founder Sal Khan ’98’s former room. Mar. 15, 2018 Facebook Twitter Reddit Print Allan and Danny Gelman ’20 in one of the two Next House doubles that IS&T will convert to telecom receiver rooms this summer. Their room is Khan Academy founder Sal Khan ’98’s former room.