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November 2025

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2025年11月21日 / Last updated : 2025年11月21日 桑子 研 Science

Unmask the Mystery Metal with Density! Master the Secrets of “Error” and “Safety” Through Hands-On Experiments

I’m Ken Kuwako, a Science Trainer. Every day is an experiment. When you look at a chunk of metal sitting in front of you, how do you figure out “what kind of metal it is”? Just by looking at it, it’s tough to tell if it’s iron, aluminum, or maybe silver, right? Actually, there’s a […]

2025年11月20日 / Last updated : 2025年11月20日 桑子 研 Science

From Humble Moss to Star! Witness Male & Female Liverworts and Their Spring-Loaded Spores Under the Microscope

I’m Ken Kuwako, Science Trainer. Every day is an experiment. Are You Overlooking the Microscopic Forest at Your Feet? The Fascinating World of Liverworts Do you ever pay attention to the green ‘moss’ spreading across the roadsides and forgotten corners of schoolyards you walk past every day? Bryophytes—the group that includes mosses and liverworts—are actually […]

2025年11月19日 / Last updated : 2025年11月19日 桑子 研 Science

Are Vetch Pods Secret Puzzle Masters? The Brilliant Efficiency Strategy Hidden in Plants

I’m Ken Kuwako, the Science Trainer. Every Day is an Experiment. The Surprising Survival Strategy Hidden in a Tiny “Weed” at Your Feet Have you ever noticed the quiet plants growing unnoticed on the roadside or in a corner of the park? Do you think, “Plants don’t move, so they’re kind of boring”? If so, […]

2025年11月19日 / Last updated : 2025年11月19日 桑子 研 Science

A Must-Read for Parents! How to Decode Amazing Home Appliances That Answer Kids’ Big “Why?”

I’m Ken Kuwako, a Science Trainer. Every Day is an Experiment! In the quiet of the night kitchen, you hear that low “buzz” coming from the refrigerator. I bet everyone has wondered about that sound at some point. On hot summer days when I was little, I used to lie down on the floor near […]

2025年11月18日 / Last updated : 2025年11月18日 桑子 研 Science

Why Do Cats Survive Big Falls? Slow-Mo Reveals the Physics Behind Their “Super Landing”!

I’m Ken Kuwako, Science Trainer. Every day is an experiment. How can cats leap from such incredible heights and land so gracefully? It’s almost as if gravity doesn’t affect them. The BBC in the UK investigated this secret using a super slow-motion camera. What they revealed was a surprising “physics” that is completely different from […]

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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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