Why does a ballpoint pen stop writing when it falls on the floor?

toy car animation, monster truck collection, monster excavator monster mixer truck monster fire truc

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My Favorite Gel Pen in 20180 | All True Love.

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This is writing? It's clearly sword practice!

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In everyday life, a tiny cable tie can often be surprisingly useful!

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【Life】Colour-testing on new Pentel Touch | Simple 3-colour blend

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The colorful black ink is so beautiful? Beautiful cry! Easy to cry!

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Writing on a luminous board? The final effect is so beautiful!

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Exploding frog (flower-mouthed frog)

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Straight-liquid acrylic markers? Easy to use!

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What a cute doodle pen, each stroke is so healing!

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Why is this pen so strange?

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How to pretend to be a printer?

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I found a blingbling pen, and the words written with it are so three-dimensional!

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Fun Science Experiment

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[Calligraphy] [M&G K35] Everyone Used This Pen

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The world's smallest snake can conquer our troublesome red fire ants

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The caterpillar imitating the green snake (Ochre-striped moth) is so cute

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The Manufacturing Process of Toilet Seats

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The Irresistible Mechanics of “Men’s Speed Bumps”

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“Fire Burns the Street Sweeper—What Kind of Yama-Like Behavior Is This?”

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