I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Here are two tuning forks placed face-to-face. Strike just one of them, then immediately stop its sound by touching it with your hand. The room should be silent. Yet somehow, you can still hear a tone ringing out. Behind this curious little phenomenon lies […]

I’m Ken Kuwako, the Science Trainer. Every day is an experiment. While walking through a park on a morning just after the rain, I noticed tiny droplets sparkling on the leaves. Curious, I leaned in for a closer look—and was amazed to find that the delicate patterns of the leaf were magnified with surprising clarity. […]

I’m Ken Kuwako, the Science Trainer. Every day is an experiment! Have you ever made a wine glass sing with just a single finger? It’s a surprisingly magical experience—the glass suddenly resonates like a musical instrument in an orchestra. Watch the Video First If you lightly wet your finger and gently rub it around the […]

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Have you ever heard a news story about someone going to the shore during a typhoon to watch the massive waves, only to be suddenly swept off their feet? As it turns out, waves have a surprising property: there are moments when they become […]

I’m Ken Kuwako, the Science Trainer. Every day is an experiment. How High Can You Hear? Discover the Surprising Limits of Human Hearing You may think you’re hearing every sound around you—but what if some sounds have already slipped beyond the reach of your ears? This time, I used a smartphone app to test just […]