Students gather for liquid nitrogen ice cream after learning about the thermodynamic properties of liquid nitrogen and its effects on roses, tennis balls, and bananas. The class, entitled Applied Cryomania and taught by Joshua C. Velson ’10, was one of many offered to high school students through ESP’s Spark program on Saturday, Mar. 7.

Chelsea Grimm—The Tech

Students gather for liquid nitrogen ice cream after learning about the thermodynamic properties of liquid nitrogen and its effects on roses, tennis balls, and bananas. The class, entitled Applied Cryomania and taught by Joshua C. Velson ’10, was one of many offered to high school students through ESP’s Spark program on Saturday, Mar. 7. Chelsea Grimm—The Tech