Willard Libby is best known as the winner of the 1960 Nobel Prize in Chemistry, awarded for his role in developing radiocarbon dating. But throughout the 1950s and 60s he was also a tireless promoter of nuclear energy, assuring the public that fears about radioactivity and nuclear fallout were greatly overblown. One of his ideas for a beneficial use of radiation was to radiate laundry detergent. As far as I know, no detergent maker ever got behind this idea.
It appears that the 126 year old cold case of Jack the Ripper has been solved by DNA testing. A shawl that was alleged to have been found next to Catherine Eddowes, one of the Ripper's victims, carries mitochondrial DNA profiles from both Eddowes' line and the familial line of one of the Ripper suspects. Polish immigrant Aaron Kosminski, who subsequently spent his later years in mental asylums, lived in the area of the killings, and was a suspect, left his DNA behind on a bloody shawl. That shawl turned out to be a time capsule for justice.
Kate Smith was a rat trained to raise a small American flag. It was trained by Kelly Buckwalter of Santa Barbara High School as "an experiment in operant conditioning" for her chemistry and psychology classes.