This tool shows where power comes (i.e. oil, gas, nuclear, coal, hydro) for any area of the United States.
Another one goes through the average energy used by leaving appliances plugged in while they aren't being used.
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.