A beehive consists of countless cells of the same size, all of which are regular hexagons, so each corner is 120, and each cell is surrounded by other cells, with only a wall made of wax between them.

Surprisingly, the bottom of the room hole is neither flat nor round, but pointed. The bottom consists of three identical diamonds. Some scientists have measured the angle of a diamond. Both obtuse angles are 109 and both acute angles are 70.

Amazingly, all the hives in the world are built according to this unified angle and mode. This honeycomb structure has high strength and light weight, and is also beneficial to sound insulation and heat insulation.

So now the space shuttle, satellite and spacecraft use a large number of honeycomb structures, and almost all satellite shells are honeycomb structures. Therefore, these spacecraft are also collectively referred to as "honeycomb spacecraft". Moreover, these "hive ships" are very material-saving.