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:U.N. Condemns Killing, Torture and Detention of Gay Men in ChechnyaEuropean Court Faults Russia’s Handling of 2004 Beslan School Siege18 Syrian Fighters Allied With U.S. Are Killed in Coalition AirstrikeChina Says Its Trade With North Korea Has IncreasedHungary Law That Could Close Soros-Backed University Faces UncertaintyLula and Simba, Last Surviving Animals at Mosul Zoo, Have Been Rescued