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September 2026

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2026年9月15日 / Last updated : 2026年9月15日 桑子 研 Science

Hunt for the Hidden Magnets in Your Smartphone! The Surprising Truth Revealed by Iron Filings

I’m Ken Kuwako, a science trainer. Every day is an experiment! The smartphone you hold in your hands every day is hiding several tiny “magnets” inside its slim body. Did you know that? In this experiment, we’ll sprinkle some handy MagChip over a smartphone instead of iron filings and reveal the invisible magnetic fields hiding […]

2026年9月14日 / Last updated : 2026年9月14日 桑子 研 Science

Tap, Tap, Reveal! The Mysterious Patterns of Magnetic Field Lines (Observing Magnetic Fields)

I’m Ken Kuwako, a Science Trainer. Every day is an experiment. The “magnetic field” that forms around magnets and electric currents is an invisible concept, which can make it difficult for students to visualize. In class, I explain things like, “Magnetic field lines run from the north pole to the south pole,” and “The direction […]

2026年9月13日 / Last updated : 2026年9月13日 桑子 研 Science

Why Doesn’t a Spinning Top Fall Over? Feeling the Mystery of Rotation with a Gyro Wheel (Gyroscopic Effect & Precession)

I’m Science Trainer Ken Kuwako. Every day is an experiment! When you were a child, didn’t you ever wonder about this? This time, I’d like to unravel that mystery using a “gyro wheel” and explore the hidden power of rotation that we can’t see with our eyes. Once you actually experience it with your own […]

2026年9月11日 / Last updated : 2026年9月11日 桑子 研 Science

Why Does It Only Stick on One Side? The Magnetic Mystery of Magnet Sheets (Single-Sided Multipole Magnetization)

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! Have you ever noticed the advertising magnet sheets stuck to your refrigerator—those thin magnets from water-leak repair companies and other businesses? They may look like nothing more than simple promotional items, but hidden inside these thin sheets is a surprisingly clever magnetic structure. When […]

2026年9月10日 / Last updated : 2026年9月10日 桑子 研 Science

200 km/h Lamborghini Challenge! The Science Behind a 12-Meter Tablecloth Pull (TBS’s Nature Teacher) [Science Supervisor & On-Air Guest]

I’m Ken Kuwako, a Science Trainer. Every day is an experiment. The program “Nature Teacher: The Ultimate Experiment on Planet Earth”, which I had the opportunity to work on as a science supervisor and on-screen expert, aired on TBS on January 18. This was a large-scale science variety show in which the comedy duo Chocolate […]

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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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