“If we know the initial amounts of stuff in the universe, such as dark energy and dark matter, and we have the physics correct, then you can go from a measurement at the time shortly after the Big Bang and use that understanding to predict how fast the universe should be expanding tod...
Theoretically, an expanding universe must have started from a single point. => 从理论上说,一个膨胀的宇宙一定是从一个点开始的。 By measuring how fast the universe is expanding, astronomers calculated backwards and figured out when it burst into life. => 通过测量宇宙膨胀的速度,天文学家们计算出...
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Come on, admit it, you’ve had this question. “Since astronomers know that the Universe is expanding, what’s it expanding into? What’s outside of the Universe?” Ask any astronomer and you’ll get an unsatisfying answer. We give you the same unsatisfying answer, but really explain it...
If still you don’t know that we live in an expanding Universe, then I’m clearly not doing my job. And so once more, with feeling… the Universe is expanding. But that certainly doesn’t answer all the questions that go along with the it. ...
and is still expanding. Observational data such as the redshift of galaxies observed by the Hubble telescope, precise measurements of cosmic microwave background radiation, and the abundance of light elements in the universe all support the Big Bang theory and are important evidence to confirm it....
The concept of an expanding universe was advanced by the American astronomer Edwin Hubble (1889-1953), who is the namesake for the Hubble Space Telescope. In the early 20th century, Hubble became one of the first astronomers to deduce that the universe was composed of multiple galaxies. His ...
随着轰的一声 givingbirthtoanendlessexpandingexistence... 诞生了无限膨胀的 oftime,space,andmatter. 时间空间和物质 Now,seefurtherthanwe'veeverimagined... 现在所见超乎我们的想象 beyondthelimitsofourexistence... 超越了我们生存的限制 inaplacewecall"TheUniverse." 这个空间我们称之为“宇宙” Cosmic...
Generalization is central to motor learning. However, few studies are on the learning generalization of BCI-actuated supernumerary robotic finger (BCI-SRF) for human-machine interaction training, and no studies have explored its longitudinal neuroplastic
observing the spectrum of these x-rays the team could calculate the temperature of the gas. The higher the temperature, the brighter the gas. By measuring the gas temperature the team could determine how much x-ray light it emits. This is true regardless of how...