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 […]

I’m Kuwako Ken, the Science Trainer. Every day is an experiment. Walk into a supermarket in summer, and one thing is hard to miss: rows upon rows of watermelons. Their sweet, crisp red flesh is the perfect way to cool down on a hot day. But have you ever stopped to look a little closer? […]

I’m Ken Kuwako, the Science Trainer. Every day is an experiment. “I taught electricity using the water-flow model, and my students told me they finally understood it.” I suspect many teachers have had a similar experience. But let’s pause for a moment and ask an important question: Does that model really explain Ohm’s Law correctly? […]

I’m Ken Kuwako, the Science Trainer. Every day is an experiment! “The moment you flip the switch, the light bulb turns on.” It seems like the most ordinary thing in the world, but behind that simple event lies one of the most elegant principles in physics: Ohm’s Law. Yet when students actually perform the experiment, […]

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. When you hear the word “capacitor,” what comes to mind? Most people vaguely know that it’s a component that stores electricity. But far fewer have ever seen what’s actually happening inside one. This time, I used a simulation tool called GeoGebra to visualize the […]