The human center of gravity is the point where the human body rests under normal conditions without rotating, remaining balanced without active effort to remain upright. An unstable center of gravity requires only a small push to ruin someone's equilibrium, whereas a stable equilibrium is much stronger and can remain stable even under significant force.Continue Reading
The natural center of gravity shifts according to posture, with a lower center of gravity, or CG, creating a stronger balance. Crouching, sitting and kneeling all create a stable CG, making it easy to remain balanced even when pushed by outside factors. Standing upright is less stable, as the CG is higher and easier to unbalance.
Center of gravity is only one part in maintaining balance, with several other factors determining if someone can remain upright. An individual will maintain balance with an increase of friction in their footing or being assisted by special footwear. Someone balancing on a rope or a wooden beam will crouch down to lower their center of gravity, actively equalizing their balance in the process. Individuals with greater mass have a stronger balance due to a more stable center of gravity, requiring less effort to remain upright than shorter or smaller people.Learn more about Particle Physics
The center of gravity is calculated using two equations, the x coordinate is calculated by x = sum of (mi * xi) / sum of mi. The y coordinate is calculated as y = sum of (mi * yi) / sum of mi. Sometimes the z coordinate is also calculated.Full Answer >
The Oxford Dictionary says a star is a massive ball of gas, primarily helium and hydrogen, compressed by its own gravity to the point that spontaneous nuclear reactions are triggered, causing it to emanate heat, light and other forms of energy. The sun is the closest star to the Earth. All other stars are so distant from the solar system they only appear as tiny points of light.Full Answer >
Leaves on tomato plants curl upward because of several reasons, including viral infections, an effort to resist the excessive moisture when the conditions are excessively cool and moist and an effort to conserve water during a dry spell. Learning to identify the signs and knowing the reasons behind the curling up of tomato leaves is the most important aspect for a successful treatment and prevention of this problem.Full Answer >
The human body contains three main coronary arteries that provide oxygen and nutrients to the heart and multiple smaller coronary arteries. The smaller coronary arteries branch off from the main ones.Full Answer >