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April 2026

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2026年4月30日 / Last updated : 2026年4月30日 桑子 研 Science

Frozen in Sight, Racing to Impact: The Terror of the Collision Course

I’m Kuwako Ken, your science trainer. Every day is an experiment. A clear, open intersection. “Wait… is that car stopped?” — just as you think that, you suddenly realize it’s actually moving, and your heart skips a beat. Maybe you’ve even heard of accidents happening this way. This strange and slightly frightening phenomenon actually has […]

2026年4月29日 / Last updated : 2026年4月29日 桑子 研 Science

Spot the Invisible Force! 3 Rules of Equilibrium: Why the Action Line is Everything.

This is Kuwako Lab, your science trainer. Every day is an experiment. Exploring the Balance of Forces — Experience the “Aha!” Moment Have you ever stopped to wonder why the things around you stay perfectly still? Books, desks, swings, signboards—they all just sit there as if it’s obvious. But behind the scenes, invisible forces are […]

2026年4月28日 / Last updated : 2026年4月28日 桑子 研 Science

The 0.001-Second Standoff: Unmasking the Mystery of Slow-Motion Electricity (Self-Induction Experiment)

I’m Kuwako Ken, your science trainer—where every day is an experiment. Have you ever heard the word “amanojaku”—someone who instinctively does the opposite of what they’re told? Believe it or not, there’s a component in the world of electricity that behaves just like that. It’s called a coil. The moment you turn a switch on, […]

2026年4月27日 / Last updated : 2026年4月27日 桑子 研 Science

The Lunch Box Mystery: The Moment Scientific Laws Are Born.

I’m Kuwako Ken, a science trainer—every day is an experiment. As “active, collaborative, and deep learning” becomes increasingly emphasized in education, one core mission stands out for us as teachers: how do we ignite that natural “I want to know!” curiosity in our students? The way we spark motivation at the start of a lesson […]

2026年4月26日 / Last updated : 2026年4月26日 桑子 研 Science

Turn Your Phone into Magic Eyes! The Mind-Blowing World of Visualizing Heat for $400 (FLIR ONE Pro)

This is Kuwako Lab, your science trainer. Every day is an experiment. Did you know that our world is filled with “light” we can’t even see? What would reality look like if we could capture that invisible light? Until just a few years ago, the equipment needed to do that cost thousands of dollars. Now, […]

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運営:桑子研(くわこ けん)
科学の楽しさや不思議、感動を多くの人に届けていきたい。サイエンストレーナーとしてテレビ番組の科学監修・出演、実験教室、科学本執筆なども行っています。

Author: Ken Kuwako
My mission is to share the joy, wonder, and excitement of science with as many people as possible. As a Science Trainer, I stay busy supervising and appearing on science-themed TV programs, hosting hands-on experiment workshops, and authoring science books.

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