kylekun513 (26)in #science • 7 years agoDo Pollution Masks Actually Work?I'm excited to announce a special guest to help answer the question of whether anti-pollution masks are effective at…kylekun513 (26)in #inspiration • 8 years agoThe Complexity Behind a Simplicity SandwichI design calculators. Here's one I'm most proud of: Just kidding. I do love the icon, but I'm talking about a…kylekun513 (26)in #technology • 8 years agoDo bulletproof vests actually help if you don't have a bulletproof helmet?Why do cops and security guards wear bulletproof vests, but leave their heads exposed? This is a common question…kylekun513 (26)in #technology • 8 years agoStatistics & timing in active-shooter scenariosHow much time do you have to react in an active shooter scenario? I surveyed several top active shooter training…
