we start high and go low, we're dealing with emission where we have excess energy that the electron's giving off, and that energy is going to be equal the energy of the photon that is released and, of course, through our equations we know how to get from energy to frequency or to wavelength of the photon.

当我们从高到低时，我们说的,是发射,电子有多余的能量给出，这个能量等于，发出,光子的能量，当然我们可以通过方程,从能量知道，光子的频率，和波长。

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Certainly, Asia's emphasis on work and economic development leaves little excess energy and capital to spread artistic achievement.

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We are far enough up the coast to be out of range of hurricanes, but close enough to the urban centers of the northeast, where 18% of the U.S. population lives, for there to be an efficient market for the excess energy we can produce.

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For example, Travelocity's business has grown in excess of 100% per year, spending "more time and energy on offering vacation packages than just tickets, " said Jim Marsicano, senior vice president and general manager at Travelocity.com.

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