If you feel like you need something a bit more high brow this Mardi Gras season, away from the drama and debauchery of the parties and the portaloos, The Royal Botanic Garden Sydney is hosting for the third time, An Evening with 500 Queer Scientists, a soirée which presents an opportunity to hear the stories and experiences of LGBTQI scientists who are out and proud “in the lab”.This Sydney Gay and Lesbian Mardi Gras event will “provoke positive debate and help promote science as an inclusive, forward-thinking, and viable career path for bright young queer minds!” Which if the last two sold out events are anything to go by, is an important discussion being held in the STEM* fields currently.*(STEM = Science, Technology, Engineering and.