Carl Sagan's ashes are entombed in a small, Urn-shaped container which also holds a sample of soil from Mars. elaborate
Light curing, used in dentistry and other applications, relies on a process called photopolymerization, where light triggers a chemical reaction that hardens a liquid resin into a solid. elaborate
Alexander Fleming's discovery of penicillin was partly accidental; he noticed the mold inhibiting bacterial growth on a contaminated petri dish. elaborate
Some car parts, like bumpers, use a type of plastic called polyurethane that's also found in foam mattresses. elaborate