Explosive (1 of 2) (image) American Chemical Society Caption Detonation of 0.5 grams of triacetone triperoxide (TATP) -- a trivial sample size compared to quantities in modern-day terrorist materials -- emits a shock wave that destroys a nearby water balloon. At the 237th ACS National Meeting, chemists are reporting that a new, more powerful explosive related to TATP is unlikely. Credit Gerard Harbison, Ph.D. Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.