A guy has made a prototype invention of his “Automatic Sunglasses” Pretty cool concept sunglasses that retract on their own on UV detection. Facebook Prev Article Next Article Gadgets Checkout these cool gadgets... Related Posts Transparent Smart Window Diamond Covered USB SkyLasers – Really Powerful Lasers You Can Buy Energy of a Flywheel. Pretty Impressive! Bike Lock Can Climb Poles Floating Geometric Machine – Festo
