Bayanan watsa labarai: Tambayoyi da yawon shakatawa na tafkunan suna samuwa akan buƙata. Hotunan tafkunan hasken rana suna samuwa don saukewa da amfani a nan. Newswise - Tun daga tsakiyar watan Yuni, masanin ilimin kimiya na Jami'ar Cornell Steve Grodsky da ƴan ƙaramin gungun ɗalibai sun haɗu da fale-falen hasken rana guda 378 da kuma ruwa 1,600 - da hannu, ɗaya-lokaci-lokaci - a cikin tafkuna uku a Cibiyar Kofin Gwajin Cornell, kusa da filin jirgin saman Ithaca.