| 词汇 | 涨落 |
| 释义 | 涨落 Aisati hopes to show journal pedigrees, as well as the rise and fall of specific scientific fields, in future iterations. The ebb and flow of tides help sculpt an array of landforms on coasts worldwide, including spits, barrier islands, and dunes. But when you zoom in to very small distances, general relativity cannot ignore quantum fluctuations of space-time. But households and businesses are prone to huge swings during peak times and are less economical overall. And, of course, the system energy fluctuates a great deal less than the individual molecule energies. It can soar unexpectedly with new discoveries, thus causing currency values to fluctuate. Quantum fluctuations inside the pockets were amplified along with the universe. So broad is the ownership of stock shares that owners can easily follow the fortunes of the market on a daily or even hourly basis. But quantum fluctuations change the situation. Fluctuations in the cosmic microwave background radiation probe the earliest moments of the universe. Customers may also want protection from the ebb and flow of prices. From those density fluctuations galaxies eventually formed. Generic inflation predicted large temperature fluctuations, but we don't see these. Once you average over that many individual molecules, you find that there's very, very little fluctuation in the energy. The dead whale was supposed to be burnt last week but officials decided to wait for perfect weather and tidal conditions. The ebb and flow of these forces has made for differences in performance, first in one direction, then the other. To be fair, these numbers are something of a snapshot, as the profitability of a given industry ebbs and flows with the overall economy. The microwave background fluctuations indeed indicate that the average sum could be zero within the measurement uncertainties. In the talk, he will argue that tiny quantum fluctuations in the very early universe became the seeds from which galaxies, stars, and ultimately human life emerged. And to exemplify the principle, if you are close to the coast and see any unusual shoreline motions, or feel any tremor that lasts more than30 seconds, evacuate inland or to high ground. And the fluctuations around that average are very small. If the universe has zero energy, then it could have been spontaneously created from nothing by quantum fluctuations. The lake seemed to breathe, expanding and contracting, rising and falling, its surface level changing several feet in a matter of minutes, spectacular and terrifying at once. |
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