Ken Kuwako, Science Trainer here. Every day is an experiment. Scrub Away Stubborn Grime! Cleanser Is a Team-Up of Surfactants and Abrasives Burnt-on gunk and dull, stubborn stains that laugh in the face of both acidic and alkaline cleaners. When that happens, there’s a trusty bottle waiting in the back of your kitchen cabinet: scouring […]
Hi, I’m Ken Kuwako, your Science Trainer. Every day is an experiment! Want the big-picture roundup on the science of cleaning? You can find it here. 洗剤の驚異の化学（お掃除の科学） You’ve probably heard the words “acid” and “alkali.” Technically, an alkali is a base that’s dissolved in water. When it comes to cleaning, the heavy hitter among the […]
Ken Kuwako, Science Trainer here. Every day is an experiment. No batteries. No outlet. Just a magnet moving near a coil, and suddenly electricity flows. No matter how many times I see it, it still makes me say, “Wait, what?!” This is electromagnetic induction. Move a magnet toward a coil and current flows. Hold it […]
Ken Kuwako, Science Trainer. Every day is an experiment. I took a motor apart to see what was inside. I was sure there’d be some complicated machinery in there, but all I found was a coil and a magnet. Just those two things. And yet they power electric fans, electric cars, and even drones. So […]
Hi, I’m Ken Kuwako, your Science Trainer. Every day is an experiment. “This flower has six petals, right? Well, it turns out they’re not all petals.” Irises were blooming in my parents’ garden, so I stopped to take a good look. Standing in front of those vivid blue-purple blooms, I found myself wondering, “Which part […]