ARTICLES

Since circular creations appear throughout nature, no man can be credited with the invention of the circle. From the cross-section of a plant stem to the moon and the sun, circles appear everywhere in nature.

www.reference.com/world-view/invented-circle-b1c0944e4208f853

The unit circle does not have a known creator but was rather an amalgamation of different ideas from early astronomers and mathematicians. Contributors to the technology include the Babylonians, the Egyptians and the Gre...

www.reference.com/article/invented-unit-circle-b0ba71b4db2f0a3e

Brahmagupta, a Hindu mathematician and astronomer, first used a dot underneath other numbers to represent the number zero in 628 A.D. He was the first to develop additive and subtractive operations that use zero.

www.reference.com/article/invented-zero-bae0a74599235bdd

SIMILAR ARTICLES

Optical illusions have been found in cave paintings, so an optical illusion is not considered an invention but instead is the result of man imitating the geometric forms seen in nature through architecture and art. Arab ...

www.reference.com/world-view/invented-first-optical-illusion-d983bacd86646ae3

There are numerous themes in "Hatchet" by Gary Paulsen, including: man versus nature, the power of positive thinking, initiation into manhood and contrasts between wilderness and urban environments.

www.reference.com/world-view/theme-book-hatchet-3e0ffbe5d2abfd2f

"To Build a Fire" by Jack London is a short story about man versus nature, and for its protagonist, fire represents survival. Because of the extreme cold, the man struggles to light a fire, and the condition of his froze...

www.reference.com/world-view/symbolism-build-fire-jack-london-58abefa264ce89f5

You can dry your paper mache creations faster by placing them in front of a fan or using a hair dryer. Additionally, you can place small paper mache projects in the oven at the lowest possible temperature, but you must c...

www.reference.com/world-view/fast-ways-dry-paper-mache-d5e726beb2e8a519