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牛顿

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Gravity for kids made clear and cozy. Read a short history, try two safe home tests, and spark wonder tonight. Playful questions and simple safety tips help your child become a tiny expert.

儿童的重力：为什么物体会掉落以及一个睡前测试

为孩子们清晰而温馨地解释重力。阅读简短的…

Jaikaran Sawhny

15 5 月, 2026 •

Planetary orbits for kids are graceful, repeating paths shaped by gravity. This simple guide explains orbits, Kepler and Newton, Earth’s orbit, and how we study planets. Try easy demos to feel the pull of space.

儿童行星轨道：简单入门

儿童行星轨道是由重力塑造的优雅重复路径。…

Roshni Sawhny

25 3 月, 2026 •