photo credit: DudeLikeHella. Cory Williams’ reaction when hearing the sound a stone makes skipping on ice
This guys reaction is priceless! I can’t help but become as excited as him and want to just visit Alaska and try this myself!
SKIP TO 3:40 on the video to hear the sound!
For those Nay Sayers I thought the same thing where I did NOT believe this was true, BUT I have done research that has proved this IS possible and that the noise WAS NOT added to the video. The information is diaplayed below as described by as iflscience.com
Understandably, some people wondered if the sound was real, or if Williams had added it in later. After all, if this is the sound the stones always make on frozen lakes, how come everyone living in colder latitudes don’t hear it every winter? Plenty of inhabitants of higher latitudes have confirmed hearing these sounds before. According to Canadian websiteCottage Life, “Underneath the ice the water isn’t solid. Ice vibrates up and down, similar to a drumhead or cymbal vibrating after being struck.”
The echoing effect is a product of the different speed of sound in different media. The speed of sound in air is 343 m/s (at 20°C), but this rises to around 1,400 m/s in water andmore than 3,000 m/s in ice, although even the latter can vary. Sound waves that make part of the journey to our ears through ice reach us before those that come directly. To complicate things a little further, the “speed of sound” can vary with frequency. In air this effect is small, but in ice it can be substantial, a phenomenon sound artist Andreas Bick has used to remarkable effect.
Not everyone who has tried skipping stones on ice has had the same experience because, as Cottage Life notes, it also depends on how the ice was formed.
“Different ice produces different sounds: A high-pitched noise when your rock hits the lake likely means you have ‘clear’ ice. This is the glassy, see-through ice that’s formed under cold, still, non-snowy conditions. ‘Snow’ ice—the opaque ice that forms after snow falls on the surface of the lake, becomes saturated with water, and then freezes—produces a lower-frequency sound, because fine grains in the ice absorb some of the noise.”