... , logic, and medicine at the Universities of Heidelberg, Strasbourg, and Basel, he received an M.D. degree (1721); and in 1723-24 he wrote Exercitationes quaedam Mathematicae on differential equations and the physics of flowing water, which won him a position at the influential Academy of Sciences in St. Petersburg, Russia. Bernoulli lectured there until 1732 in medicine, mechanics, and ... states that the pressure in a fluid decreases as its velocity increases. He also established the basis for the kinetic theory of gases and heat by demonstrating that the impact of molecules on a surfa...

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• Approx Pages: 4
• Grade Level: Undergraduate

... . This emission of light is fascinating because the energy required to produce the light suggests that the temperature inside the bubble exceeds 10,000 Celcius. Scientists are still debating the physics of Sonoluminescence. Although it is still not clear precisely what sequence of events creates the light, laboratory experiments have established several strong theories to explain this phenomenon. The first known ... is that the sounds waves applied to the flask and moving through the liquid to the bubble create a shock wave within the bubble. This shock wave compresses the bubble at a ve...

• Word Count: 581
• Approx Pages: 2
• Grade Level: Undergraduate

... . With a density of six ions per cubic centimeter, as opposed to Earth's millions of ions in the same volume of atmosphere, one wouldn"t expect much from solar wind. However, its velocity varies between 750 and 500 kilometers per second and it has an average temperature, near Earth, of 150,000 degrees Kelvin. Occasionally, it even reaches speeds of up to 1000 ... interstellar medium, is called the heliopause; located, on its closest side, at approximately 100 Astronomical Units from the Sun, or 100 times the distance from Earth to the Sun and about twice as far as the Kuiper belt beyond ...

• Word Count: 682
• Approx Pages: 3
• Grade Level: Undergraduate

The practice of calculus dates all the way back to ancient Egypt, where in about 1800 BC, and Egyptian mathematician successfully calculated the volume of a pyramidal frustum. However, the actual discovery of calculus is attributed to two men, Isaac Newton and Gottfried Willhelm von Leibniz. ... under a curve or to get the total maximum of quantities. It was also applicable to the basis of problems in physics and astronomy that defined its origins. There are two main exercises in calculus; differentiation, which was used for the calculations of velocity and acceleration, the slope of a curve...

• Word Count: 513
• Approx Pages: 2
• Has Bibliography
• Grade Level: Undergraduate