Starting with a large nine-foot long drain pipe that was capped at both ends using copious amounts of marine-grade waterproof glue, Justin added ballast tanks to allow the sub to dive and rise, drive motors, a communications system including audio and video, and ultra-bright strobe lights that allow him to explore the depths of his local lake.
The submarine took just over six months to design and build, and because Justin has spent his life scavenging electronics and components, he estimates the total cost to be just shy of $1,000.
via Gizmodo
Image: New Jersey On-line
