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2025年11月23日 / Last updated : 2025年11月23日 桑子 研 Science

Why Do Plants Grow Hair? A 3-Day Radish Root Hair Observation That Reveals the Secret!

Hi, I’m Ken Kuwako, your Science Trainer! Every day is an experiment. A tiny, dry seed. At first glance, it looks like a sleeping pebble, but hidden deep inside is a burst of life’s explosive energy. This time, we’re zooming in on the “germination” of the Radish (specifically, the ‘Hatsukadaikon’ or ’20-day radish’), a topic […]

2025年11月22日 / Last updated : 2025年11月22日 桑子 研 Science

Inside the Peanut! A Fun Dissection Exploring Seed Structure (Non-Endospermic Seeds)

Hello, I’m Ken Kuwako, your science trainer. Every day is an experiment! 【This article is also available on radio!】 Exploring the Secret Life of a Peanut Seed You grab a bag of peanuts from the supermarket shelf, shell them, and enjoy that satisfying crunch – a perfectly normal scene, right? But within each tiny peanut […]

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

Time vs. Distance: How Physics Redefines Speed

I’m Ken Kuwako, your science trainer. Every day is an experiment. The Olympics vs. The Lab: Is Our Concept of Speed Upside Down? When you watch sports on TV, what moments make you exclaim, “Wow, that’s fast!”? Whether it’s the 100-meter dash, a marathon, or a freestyle swimming race, we watch athletes compete based on […]

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 […]

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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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