I’m Ken Kuwako, the Science Trainer. Every day is an experiment. I found this cute yellow hand spinner at Daiso. Hand spinners are also sold at 100-yen shops like Seria, and although they’re inexpensive, they spin surprisingly well. At first glance, it looks like nothing more than a fun little toy. But glue it to […]

I’m Ken Kuwako, the Science Trainer. Every day is an experiment. Imagine standing in front of a towering cliff, tens of meters high, covered with perfectly layered brown stripes that look as though they’ve been baked to perfection. On Izu Oshima, there really is a gigantic rock formation affectionately known as the “Baumkuchen.” In this […]

I’m Ken Kuwako, the Science Trainer. Every day is an experiment! Drop a little hydrochloric acid onto magnesium, and suddenly it starts to “swim”! Even better, this simple experiment lets you explore the fascinating properties of acids and alkalis all at once. Today I’d like to share an observation experiment I used with my ninth-grade […]

I’m Science Trainer Ken Kuwako. Every day is an experiment. Every time an online shopping package arrives, another cardboard box seems to find its way into the corner of the room. Have you ever tried tying a stack of boxes together with string, only to have the whole pile collapse before you could finish? It […]

I’m Ken Kuwako, the Science Trainer. Every day is an experiment! Have you ever looked at the diagrams of electric field lines in your textbook, packed with arrows, and wondered, “What are these actually showing?” You’re not alone. The good news is that there’s now an amazing online tool that makes the concept instantly click. […]