How It Works 2015 We dissected and demystified the world's most awesome vehicles, tools, and toys Published Apr 8, 2015 6:39 PM Science SHARE Three-Wheeled SupercarSelf-Tracking DroneVirtual RealityDeath By Black HoleHydrogen VehicleLarge Hadron ColliderFlat-Seamed BaseballGlobal InternetCyborg RoachImmunotherapy This article was originally published in the April 2015 issue of Popular Science. april 2015 how it works 2015 print Science MORE TO READ RELATED Robots built from frog cells have unlocked the ability to self-replicate Robots that create offshoots of themselves could be a future tool for science and medicine. READ NOW RELATED Omicron isn’t going away. Here’s how to protect yourself from the latest COVID variant. There's plenty you can do to minimize your risk against Omicron, even when there's not much we know about it. RELATED The 100 greatest innovations of 2021 The 34th annual Best of What’s New awards.