I’m Ken Kuwako, a Science Trainer. Every day is an experiment. How many “motors” do you think are around you? Fans, washing machines, smartphone vibrations, even train wheels… Our lives are overflowing with the power to “rotate” things. But if someone asks you, “Why does electricity make things spin?” it can be a tricky question, […]

This is Kuwako Lab, your science trainer. Every day is an experiment. 【You can also listen to this article as a radio episode!】 “Light travels in straight lines.” Sunlight, flashlight beams… it certainly looks that way, doesn’t it? But here’s a bigger question: Is light made of particles? Or is it actually a wave? This […]

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! Return to Special Page Doable with a Dime-Store Toy! The Longitudinal Wave Science Experiment that Captivates Students “You can hear sound, but have you ever seen what it actually looks like?” “We hear about ‘P-waves’ in earthquake news. They say it’s the small tremor […]

I’m Ken Kuwako, a Science Trainer. Every day is an experiment. What if the ground you’re standing on suddenly turned into a wobbly, pudding-like liquid? This is ‘Liquefaction,’ a phenomenon you hear about in earthquake news. The idea of the ground turning into a liquid sounds like something out of an sci-fi movie, but it’s […]

Hi, I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Static electricity is everywhere—that invisible yet definitely present mysterious force: the crackle when you take off a sweater in winter, the shock when you touch a doorknob! But did you know this static electricity has the power to manipulate water, almost like magic? […]