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:North Korea Fires Another Projectile, South’s Military SaysFor These Muslims, Learning the Quran Starts With YouTubeMaking an Alpine Holiday Home Their Permanent HomesteadWilliam Barr, Colorado, Royal Baby: Your Wednesday Evening BriefingAlly of Venezuelan Opposition Leader Is Detained, Guaidó SaysYour Thursday Briefing