I’m Ken Kuwako, the Science Trainer. Every day is an experiment. Electricity is invisible, yet a tiny change in how you connect a circuit can completely transform its behavior. Connect components in series or in parallel, and suddenly the voltage behaves in entirely different ways. In this lesson, we used real experimental data to reveal […]

I’m Ken Kuwako, the Science Trainer. Every day is an experiment. Here’s a quick challenge for you. Take a look at this video. A strange black creature is moving around… but what do you think it is? Wait… WHAT is that?! A headless animal is swimming around. Did you figure it out? It’s actually a […]

I’m Ken Kuwako from Science Trainer. Every day is an experiment. Have you ever heard that light can bend? The bottom of a swimming pool looks shallower than it really is, and a straw in a glass of water appears broken. These are all caused by light changing direction. But surprisingly few people can explain […]

I’m science trainer Ken Kuwako. Every day is an experiment. 【This article is also available as a radio talk!】 “Why don’t ships sink?” “Why does ice float on water?” At some point as kids, we’ve all wondered about questions like these. Surprisingly, the answers are hidden inside just two scientific ideas: density and buoyancy. Today, […]

I’m science trainer Ken Kuwako. Every day is an experiment. Stretch a balloon, and it heats up. Let it snap back, and suddenly it feels cold. It sounds like a simple little trick, but this tiny experiment is actually tied directly to some of the deepest ideas in physics. Today, let’s uncover the fascinating connection […]