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2025年10月1日 / Last updated : 2025年10月1日 桑子 研 Science

Just Mix It and Reach 80°C!? Discover the Heat of Rust with a DIY Hand Warmer! Learn the Science of Exothermic Reactions by Making Your Own

I’m Ken Kuwako, a Science Trainer. Every Day is an Experiment. On a cold winter day, the gentle warmth of a heat pack tucked into your pocket feels like a gift from the heavens, doesn’t it? But have you ever stopped to imagine what is actually happening inside that small pouch? That little bag is, […]

2025年10月1日 / Last updated : 2025年10月1日 桑子 研 Science

Catchy Title Suggestion: Rock Detectives: Unlocking Earth’s Past in Your Hand

I’m Ken Kuwako, a Science Trainer, and for me, every day is an experiment. Think about a common, ordinary rock lying on the side of the road. Wouldn’t it be exciting if every single one was a “time capsule” delivered from deep within the Earth’s past? If you ask a child, “What do you see […]

2025年9月30日 / Last updated : 2025年9月30日 桑子 研 Science

Make Your Own Earth Cake: The Fun, Hands-On Strata Experiment!

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! When we delve into Earth Science, students naturally start asking, “What exactly is a stratum (layer of rock/soil)?” Showing them diagrams and photos from the textbook doesn’t always click. They look unconvinced, asking things like, “Does it really stack up like that?” or “What’s […]

2025年9月29日 / Last updated : 2025年9月29日 桑子 研 Science

Spin an Acorn, Control a Satellite: The Amazing Physics of the DIY Gyroscope

I’m Ken Kuwako, Science Trainer. Every day is an experiment. The little treasure of autumn rolling in the park… an acorn. Doesn’t finding one just make you happy? But did you know that this acorn holds the key to unlocking scientific wonders, and is even connected to space technology? This time, let’s dive into the […]

2025年9月29日 / Last updated : 2025年9月29日 桑子 研 Science

The 10-Story Fried Rice Toss: The Physics of Your Kitchen Flip

I’m Ken Kuwako, your Science Communicator. For me, every day is an experiment. 【This article is also available as a radio broadcast!】 One day, a friend who frequently makes fried rice at home asked me a peculiar question that popped into his head while tossing rice in his pan: “If you want a single grain […]

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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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