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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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運営者: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。理科教師として勤務する傍ら、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
I want to share the fun, wonder, and excitement of science with as many people as possible. In addition to my work as a science teacher, I also work as a "Science Trainer," providing scientific supervision for and appearing on TV programs, holding hands-on science workshops, and writing science books.

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2025年12月30日

A 10-Kilometer Cliff Time Travel! Discover Earth’s Memories at Choshi’s Byobugaura

2025年12月29日

Twisting Light to Create Color at Home! Turn Scotch Tape into Magical Paint — Make a Polarized Light Kaleidoscope

2025年12月28日

【Quiz】Which Is Heavier After the Cut? A Carrot at the Balance Point! – Exploring Torque with Vegetables

2025年12月27日

Visualizing Physics with a Flying Hammer! Revealing the Beautiful Path of the Center of Mass Using a Smartphone App

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When Your Fridge Becomes a Lab: The Fascinating World of Standing Waves Drawn with Springs and Magnets

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