YouTube filmmaker Cory “Mr. Safety” Williams, better known to his fans as DudeLikeHELLA,was driving through Alaska recently with his girlfriend, when he decided to skip a rock on a frozen lake.
After throwing the rock a loud and really amazing chirping noise was heard. Williams’ reaction to the noise was comparable to a little kid discovering a candy store for the first time.
Canadian magazine Cottage Life notes the “chirping and pinging” sounds made when rocks are thrown onto bodies of frozen water are caused by the vibration of the ice against the unfrozen water below it. “Ice vibrates up and down, similar to a drumhead or cymbal vibrating after being struck.”
Williams moved to Alaska in August and has been using his vlog to document his new home.