インテルのインスタグラム(intel) - 8月12日 23時21分

Today's #skyscrapers look square, but they're actually circular tubes with cantilevered corners. This engineering trick saves money and frees up floor space, because it requires fewer columns inside. #didyouknow #sciencesnap

[BIHAKUEN]UVシールド(UVShield)

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