What are cell conjecture, four-color conjecture, Poincare conjecture and Goldbach conjecture?
1, Honeycomb Conjecture In the 4th century, the ancient Greek mathematician Pepos proposed that the beautiful shape of honeycombs is the representative of the most efficient labor in nature. He guessed that the honeycomb with hexagonal cross section was made by bees with the least amount of beeswax. His guess is called the honeycomb guess, but no one can guess it. ...