I’m Ken Kuwako, your Science Trainer. Every day is an experiment. When teaching “force” in science class, we often tell students that “to exert a force on an object, you have to touch it.” But electrostatic force can act on objects from a distance, almost like a magnet, even when the objects are not touching. […]

I’m Science Trainer Ken Kuwako. Every day is an experiment. The “virtual images” we see when we look into mirrors or through lenses. Are they just illusions? Or is our brain somehow fooling us? In fact, this phenomenon, which is often misunderstood, turns out to be surprisingly deep when you try to explain it scientifically […]

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. If someone told you, “Build a duck using six blocks,” what kind of duck would you imagine? Surprisingly, even if you gave the exact same instructions to an entire class, no two ducks would ever turn out exactly alike. This simple little “duck-building” activity […]

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Here’s a question for you. If you shrank the Sun down to a 50 cm diameter balance ball, how big do you think Earth would be? A soccer ball? A ping-pong ball? …Believe it or not, the answer is just 1 mm. It would […]

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Wiping up spilled water in the kitchen with a cloth, or soaking up water with a sponge after taking a bath—these everyday actions actually involve something rather surprising: water moving against gravity. Try dipping a piece of kitchen paper into a cup of tea, […]