Clips·reddit.com↗·1moThis device, invented in 1905, transforms the pressure created by sound waves into visible flame patterns.#Reddit#reddit.com#amazingSourceRead the original at reddit.com0SaveShare📚Add to CollectionNext postThis Fall's New Haunted House Movie Does What The Conjuring Never CouldRelated postsAn aerial view of Niagara Falls.reddit.comHigh pressure washreddit.comAn ordinary street market in Yakutskreddit.comLittle pigsreddit.com