I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Do you have a glass swizzle stick or a clear pen lying around in your kitchen or on your desk? What looks like a simple rod might actually be a magic wand that flips the world upside down. When we learn about how lenses […]

This is Ken Kuwako, Science Trainer. Every day is an experiment. How do birds, soaring high above the clouds, manage to generate the immense energy needed for such vigorous flight? The secret lies hidden within their small bodies: a “super-efficient engine.” This engine is the heart, a marvel of engineering crafted as intricately as, or […]

Hello, this is Ken Kuwako, your Science Trainer. Where every day is an experiment. “Sound” is invisible to the naked eye. But wouldn’t you feel a spark of excitement if you could capture those invisible waves perfectly using just math and experiments? Today, I’m introducing a lesson on “Air Column Resonance.” We’ll combine modern tablet […]

I’m Ken Kuwako, your science trainer. Every day is an experiment. 【This article is also available as a radio segment!】 Have you ever seen something magical—where “invisible” light suddenly appears as a sharp, vivid line right in front of you? You may have seen scenes in movies where a spy slips through a web of […]

Science Trainer Ken Kuwako here. Every day is an experiment. Have you ever experienced that ringing in your ears or that feeling of being squeezed when you dive deep into a pool? That’s the force of water pushing against an object—what we call “water pressure.” But since this force is invisible, it’s surprisingly hard to […]