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2026年3月9日 / Last updated : 2026年3月9日 桑子 研 Science

Was Clover the Bubble Wrap of Edo Japan? The Surprising History Hidden in the Name “Shirotsumekusa”

I am Ken Kuwako, your Science Trainer. Remember: every day is an experiment. When the soft sunlight of spring arrives, white clover begins to paint our parks and riverbanks in shades of white. Many of you probably have fond memories of hunting for that elusive four-leaf clover or weaving delicate flower crowns as a child. […]

2026年3月8日 / Last updated : 2026年3月8日 桑子 研 Science

Why Does the Magnolia Bloom Before Its Leaves? The 100-Million-Year Secret of the Hakumokuren

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! 【This article is also available on my radio show!】 “It looks like pure white tulips are blooming right toward the sky!” Have you ever encountered these eye-catching, massive blossoms? This harbinger of spring is known as the Hakumokuren, or White Magnolia. These mysterious plants […]

2026年3月7日 / Last updated : 2026年3月7日 桑子 研 Science

Can Iron Turn Into a Magnet!? Explore the Mysterious World of Magnetic Permeability with the “Pitland” Experiment

I am Ken Kuwako, a science trainer. Every day is an experiment. Have you ever found yourself completely mesmerized by the mystery of magnets, losing all track of time? Whether it is watching iron filings dance into intricate patterns or feeling that invisible push and pull of opposing forces, magnetism is truly captivating. Recently, I […]

2026年3月6日 / Last updated : 2026年3月6日 桑子 研 Science

How Are Iron and Aluminum Different? Discover the “Personality” of Materials with 100°C Metal! (Specific Heat Experiment)

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! Have you ever noticed how an iron frying pan heats up in a flash, while a pot of water seems to take forever to boil? This isn’t just your imagination—it’s all thanks to a unique “personality trait” every substance possesses. In science class, we […]

2026年3月5日 / Last updated : 2026年3月5日 桑子 研 Science

When the Electric Hill Goes Flat!? The Magic of Capacitors Revealed in 3D Graphs (Using Grapher)

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! When you hear the word “electricity,” what kind of shape do you imagine? Let’s face it—understanding the invisible world of electricity can be a bit of a head-scratcher. In science class, we learn about a device called a “capacitor.” We’re taught that inside a […]

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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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