I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Why does an iron nail rust, but a gold ring keeps its shine forever? How can a simple combination of metals in a battery generate electricity? The secret lies in the metals’ strong desire to become “Ions!“—in other words, their “Tendency to Form Ions.” […]

I’m Ken Kuwako, your science trainer. Every day is an experiment. On a cold winter day, you might hear a crackling sound or see a spark when you take off your sweater, or notice your hair floating up after rubbing it with a plastic ruler. Everyone has experienced this strange phenomenon: static electricity. Usually, static […]

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Hey everyone, here’s a circuit riddle for you! If you connect a battery and a motor with wires, the motor will obviously spin, right? But what happens if you introduce a component called a “capacitor” into the middle of that circuit? Will the motor […]

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Uncover the Secret of Copy Machines?! A Bizarre Experiment Using Static Electricity With just the push of a button, a copy machine seemingly duplicates paper like magic. We use them constantly at schools, convenience stores, and offices, but have you ever wondered about the […]

I’m Ken Kuwako, a Science Trainer. Every Day is an Experiment! 【This article is also available on the radio!】 Have you ever wondered why the fireworks that light up the night sky emit such beautiful, vividly colored light? That dazzling glow of red, green, and yellow? It looks like magic, but in reality, it’s a […]