蜜蜂蜂房是严格的六角柱状体,它的一端是平整的六角形开口,另一端是封闭的六角菱锥形的底,由三个相同的菱形组成。组成底盘的菱形的钝角为109度28分,所有的锐角为70度32分,这样既坚固又省料。蜂房的巢壁厚0.073毫米,误差极小。丹顶鹤总是成群结队迁飞,而且排成“人”字形。“人”字形的角度是110度。更精确地计算还表明,“人”字形夹角的 The bee hive is a strict hexagonal columnar body with a flat hexagonal opening at one end and a closed, hexagonal-pyramidal base at the other end, consisting of three identical diamonds. The obtuse angle of the rhombus forming the chassis is 109 degrees and 28 minutes and all acute angles are 70 degrees and 32 minutes, which is both solid and economical. The hive wall thickness 0.073 mm, the error is minimal. Red-crowned cranes always flew in groups, and lined up “people” shape. “Man ” font angle is 110 degrees. A more accurate calculation also shows that the angle of the “” character