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 […]

This is Kuwako Lab, your science trainer. Every day is an experiment. “Sensei, why doesn’t total internal reflection happen when light goes from air into water?” One day, I found this question scribbled in the corner of a student’s notebook. It looks simple at first glance, but it actually opens the door to a surprisingly […]

This is Kuwako Lab, your science trainer. Every day is an experiment. What if I told you that an ordinary bento box lid could transform into an adorable keychain? All you need is a toaster oven and the plastic lid itself. Sounds impossible, right? But behind this simple craft lies some surprisingly fascinating plastic science. […]

I’m Ken Kuwako, your science trainer. Every day is an experiment. “If you drop two objects with different weights at the same time, which one hits the ground first?” — how would you answer? Many people might say the heavier one falls faster. But in reality, that’s not the case. There’s a simple tool you […]

I’m Ken Kuwako, a science trainer. Every day is an experiment. On a cold winter morning, you run a comb through your hair—only to have it puff up and refuse to settle. Ever sighed, “Static again”? That everyday annoyance actually has a lot to do with the material of your comb. And interestingly, the answer […]