- Shifting British ovens from poisonous coal gas to less harmful natural gas
- High guard rails on the Golden Gate bridge
- Fewer guns in homes
It's worth a read.
Dunash ibn Tamim was an astronomer, grammarian, and physician, who served as court physician to the Fatimite caliphs of Kairouan (now in Tunisia).
Dunash ben Labrat ha-Levi was a poet, commentator, and grammarian, who among many other accomplisments composed Dror Yikra, a song for the Jewish Sabbath still commonly sung today.