I am Ken Kuwako, a science trainer. Every day is an experiment. In a pitch-black room, a glass tube glows softly. Blue, pink, orange… like shifting aurora light. This is neither special lighting nor CG. It is a physics experiment in which the color changes depending on the degree of vacuum. In this article, we […]

Hi, I’m Ken Kuwako, Science Trainer. Every day is an experiment. Waves are kind of magical when you think about it. Drop a stone in a pond and ripples spread outward. Sound reaches your ears as a wave. The video you’re watching on your phone right now? That’s riding in on radio waves. Yet the […]

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. It’s Hard to Believe a Single Alcohol Lamp Can Produce This Much Power “If you simply bring a flame close to it, the machine starts spinning all by itself.” Sounds a little like magic, doesn’t it? But this is actually a genuine piece of […]

I’m Ken Kuwako, the Science Trainer. Every day is an experiment. Just pressing a lemon peel against a balloon can make it burst with a loud pop. It sounds incredibly simple, yet when you witness it firsthand, it feels almost impossible to believe. It’s the kind of experiment that instantly makes people say, “Wait… why […]

I’m Ken Kuwako, the Science Trainer. Every day is an experiment. “Where does electricity come from?” “Why do motors spin?” Questions like these sound simple, but textbook diagrams and explanations don’t always make the concepts feel real. Sometimes, understanding arrives not through reading, but through experience. One tool makes that possible: the hand-crank generator. Most […]