Kinder, Gentler Explosives

Apparently, this is oxymoron day. Healthy bacon. Silent snowmobiles... What's next—eco-friendly bombs? Well, sort of: Scientists have developed a novel substance that will blow things up without scattering the surrounding terrain with poisonous lead. Called nitrotetrazole, the chemical is good for use as a primary explosive—the highly sensitive, low-power compounds that set off ultra-powerful high explosives. Even better, the compound is inert when wet but recovers all its explosive punch once it dries out again. —Martha Harbison