Mysterious Stone spheres of Costa Rica 動画 YouTube https://www.youtube.com/watch?v=gKUGEFQQmTc コスタリカの石球 Costa Rica's Stone Spheres Crystalinks The stone spheres of Costa Rica are a collection of some three hundred polished stone o…

Sony Walkman CM 1987 動画 YouTube https://www.youtube.com/watch?v=SlhIQYd-qAg The 80 Best Gadgets of the '80s AUG 19, 2013 Complex The 1980s was a decade where science and technology reached groundbreaking strides. We’re talking about an e…