Last week, New Yorkers sipped from beakers and toasted with test tubes at the World Science Festival Gala. Over hors d’oeuvres, dinner and desserts prepared with carbon dioxide tanks, high-speed evaporators and centrifuges, attendees celebrated the 60th anniversary of James D. Watson’s co-discovery of the structure of DNA. For the scientifically inclined, the festivities will continue May 29 to June 2 at the World Science Festival. Tickets go on sale April 25th, including to the “A Taste of Science” session, in which scientists and chefs will team up to explain the physics, chemistry and technology involved in making an array of innovating dishes. Eating and drinking required for that one.