Дитячий всесвіт 20 09 2014
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![Наскільки великим є Всесвіт [Цікава наука] - How Big is the Universe [Minute Physics]](https://sun9-18.userapi.com/9WEIdef2Bh2M3rPCOpHTBMMyrhPt0MOI3ZfG7A/zGoa0gO5S5c.jpg)
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