Evidence of mapmaking suggests that the map evolved independently in many separate parts of earth. Earliest direct evidence of mapping comes from the middle east. In ancient times, Chinese cartography was more advanced than their contemporaries'. The Greeks understood that the earth was a sphere. European maps were more ecclesiastic than cartographic.

The bell is one of the older, and certainly is the loudest of, musical instruments. The sound of a bell has the power to charm, to amaze, to warn, to frighten, and to lift the spirit. Bells are ubiquitous even in our electronic age. And yet the way in which a bell produces its sound is not well understood.

Although some researchers believe there is just one type of female orgasm, others believe that stimulation of the two parts of the genitals can cause different types of orgasm. During a clitoral orgasm, the vagina becomes longer. During a vaginal orgasm, the vagina shortens. Stimulation of both can cause a blended orgasm, the third type of orgasm. All these orgasms may feel different from each other.

Fire is an important natural phenomenon that encourages the regrowth and diversity of vegetation in the many forests, deserts, and grasslands that cover the Earth's continents.  Much of the plant and tree life in these regions depend on fire to create a domain conducive for growth or, in fact, use fire as a mechanism for germination.

There are three related major dimensions of mound variability: size, grave accessibility, and permanence of mortuary facilities. A flowering plant consists of a pistil and/or stamen , and usually includes petals and sepals. In the early part of the 16th century, the Spanish brought over the first honey bee colonies. English colonists did the same and soon honey bees had escaped into the wild and were buzzing all over North America.