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Is the vacuum of space protection for which the universe is against what it is that its expanding into. just like our world has an atmosphere to protect us against the vacuum.?
Wiki User
∙ 16y ago
Since Time and space seem to have began with the big bang, we simply dont have any way of understanding anything outside of it . the best we can do is say that it appears that the universe is infinite in size and is expanding and accelerating. It looks like there is no end point of the universe.Its hard to accept . But it would be equally hard to accept if there was an end point. Its a great question but no one can really give an intuitive answer, sorry.
Wiki User
∙ 16y ago
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When was the universe discovered?
In 1929 Edwin Hubble, working at the Carnegie Observatories in Pasadena, California, measured the redshifts of a number of distant galaxies. He also measured their relative distances by measuring the apparent brightness of a class of variable stars called Cepheids in each galaxy. When he plotted redshift against relative distance, he found that the redshift of distant galaxies increased as a linear function of their distance. The only explanation for this observation is that the universe was expanding.Once scientists understood that the universe was expanding, they immediately realized that it would have been smaller in the past. At some point in the past, the entire universe would have been a single point. This point, later called the big bang, was the beginning of the universe as we understand it today.The expanding universe is finite in both time and space. The reason that the universe did not collapse, as Newton's and Einstein's equations said it might, is that it had been expanding from the moment of its creation. The universe is in a constant state of change. The expanding universe, a new idea based on modern physics, laid to rest the paradoxes that troubled astronomers from ancient times until the early 20th Century.Properties of the Expanding UniverseThe equations of the expanding universe have three possible solutions, each of which predicts a different eventual fate for the universe as a whole. Which fate will ultimately befall the universe can be determined by measuring how fast the universe expands relative to how much matter the universe contains.The three possible types of expanding universes are called open, flat, and closed universes. If the universe were open, it would expand forever. If the universe were flat, it would also expand forever, but the expansion rate would slow to zero after an infinite amount of time. If the universe were closed, it would eventually stop expanding and recollapse on itself, possibly leading to another big bang. In all three cases, the expansion slows, and the force that causes the slowing is gravity.A simple analogy to understand these three types of universes is to consider a spaceship launched from the surface of the Earth. If the spaceship does not have enough speed to escape the Earth's gravity, it will eventually fall back to Earth. This is analogous with a closed universe that recollapses. If the spaceship is given enough speed so that it has just enough energy to escape, then at an infinite distance away from the Earth, it will come to a stop (this is the flat universe). And lastly, if the ship is launched with more than enough energy to escape, it will always have some speed, even when it is an infinite distance away (the open universe).
How is the sun harmful to life and what protection does the planet have against it?
i think by the planet you mean our planet,we have the Atmosphere. if we didnt have it then the sun would... 1. be to hot 2. evaperate us 3. any tiny winy incy solar wind/flare/gasses would kill life on earth
Can a helicopter take off from the moon?
A helicopter can only fly in an atmosphere, where there is something for the rotors to push against. There's no atmosphere on the moon, so a helicopter can't fly there.
How does atmosphere affect a rocket?
the atmosphere will slow a rocket due to air resistance dispite the popular notion that the rocket would work better for having somthing to push against.
Why wouldn't a helicopter take off from the moon?
A helicopter can only fly in an atmosphere, where there is something for the rotors to push against. There's no atmosphere on the moon, so a helicopter can't fly there.
The earth's two kinds of protection against solar winds are?
its atmosphere and magnetic field
Is the universe revolving around itself or expanding?
It is expanding, and at an ever increasing rate according to current understanding. Whether or not it is revolving is problematic, since there is no background object against which any revolution can be observed.
Why do astronauts need protection against radiation?
1. on earth light and radiation from space is filtered in the atmosphere, however when going out of the atmosphere radiation can become unpleasant.
What is the layer of the atmosphere that serves as shield against ultraviolet rays from the sun?
The layer of atmosphere is Stratosphere. However it does not protect us. The protection is provided by the Ozone layer.
Which part of the atmosphere protection from harmful UV rays?
The stratospheric region of the atmosphere contains the ozone layer. This ozone layer helps us to protect us against the harmful ultraviolet radiations of the sun.
Which is true about Southern Dixiecrats in 1948?
they fought against expanding civil rights
What is the static university theory and what did Einstein believe that that was impossible?
The static UNIVERSE model (not a theory) holds that our Universe has been in gravitational balance for all eternity. If general relativity correctly described gravitational interaction of matter -- and Einstein DEFINITELY believed in his model -- then the Universe would have to collapse into a singularity, a fact Einstein recognized almost immediately. He thus made this collapse disappear with a wave of his hand, saying the Universe contained a force (he called it the Cosmological Constant) that perfectly balanced against a collapse by gravity. Jesuit priest George LeMaitre showed that our Universe did not need Einstein's CC if it were expanding -- an idea Einstein ridiculed. When Edwin Hubble showed that our Universe IS, indeed, expanding; Einstein admitted his CC was his "greatest blunder."
What is Objective of consumer protection act?
Consumer protection is essential for a healthy economy. We need Consumer Protection Act for the following:- Physical protection of the consumer. Protection against deceptive and unfair trade practices. Protection against all types of pollution. Protection against the abuse of monopoly position and/or restrictive trade practices. Protection of enjoying the rights.
Which is true of southern Dixiecrat's?
They fought against expanding civil rights.
What does 'is very cratered' tell me about mercury?
This tells you that, because Mercury is very cratered, it must have no protection against the asteroids coming in. So, it is basically telling you that Mercury has a very thin atmosphere
What was true about Southern Dixiercrats?
They fought against expanding civil rights.
What is true about Southern Dixiercrats?
Southern Dixiecrats were a faction of conservative Southern Democrats who opposed civil rights initiatives in the mid-20th century. They were segregationists who supported maintaining white supremacy in the South. The Dixiecrats split from the Democratic Party in the 1948 presidential election to form the States' Rights Democratic Party.
