Elon Musk’s Mini-Sub Was ‘Not Practical’ for Thai Cave, Chief of Rescue Says The tech billionaire sent 10 engineers to Thailand and designed a submersible vehicle using rocket parts, but it was not used in the narrow cave. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Samsung’s Size Could Make It Tough to Keep Its Leader in PrisonEurope Edition: Texas, Barcelona, Hezbollah: Your Monday BriefingAs Myanmar Fighting Swells, a Desperate Flight to the BorderBodies of 10 Sailors Who Died in Navy Collision Are FoundEight Die in the Alps in Three Climbing AccidentsHurricane Harvey in Photographs