The Future is Now: 12 Hip-Hop Rising Stars Who Are Shaping the Game Like this:Like Loading... Post navigation Question about the Treasure Planet endingTIL of Minor Scale, an explosion that contained 4,744 tons of fuel oil and ammonium nitrate. Detonated on June 27, 1985 to simulate the effect of an eight-kiloton air-burst nuclear device, it was reported as “the largest planned conventional explosion in the history of the free world”.