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How did scientists belived that distant galaxies were rapidly moving away from the earth?
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A rapidly rotating neutron star with an offset magnetic field that appears to blink to a distant observer is called a?
A pulsar
Aren't Black Holes just hypothetical?
No. They appear to be real objects, and have been observed in various ways. Stars near the centers of galaxies as seen to move in ways that are possible only if they are rapidly orbiting black holes.
Why do scientist say that the ozone layer is being rapidly damaged?
Scientists say that the ozone is being destroyed due to it's lowering concentrations. Various probes have been sent which confirm the result. The ozone concentrations have fallen in Antarctic most.
What does a spectroscope have to with the big bang theory?
A spectroscope is an instrument that can be used to observe the frequency (or wavelength) of characteristic spectral lines to see how far the lines were shifted (red shift or blue shift) from their usual position. All galaxies outside our local galactic cluster produce light that is red-shifted; and the greater the distance between us and these outside galaxies, the greater the red shift. That the size of the red shift depends on the distance is considered isotropic (or the same in all directions), meaning the distance between our local galactic cluster and all other galactic clusters is increasing at the same ratio based on distance from us. These distant galactic clusters, demonstrating red shift, are supportive evidence that these outside galaxies are moving further apart consistent with the Big Bang Theory. Note: The core ideas of the Big Bang is that the Universe was filled homogeneously and isotropically with an incredibly high energy density and huge temperatures and pressures and was very rapidly expanding and cooling.
How many quasars are there?
A Quasar is a powerfully energetic and distant galaxy with an active galactic nucleus surrounding a super massive black hole. Quasars show where massive black holes are growing rapidly (via accretion). These black holes grow in step with the mass of stars in their host galaxy.Therefore there are going to billions or trillions of stars - many more than our own galaxy (~400 billion).
Does the galaxies expanding?
Yes, the whole universe is expanding rapidly and so are the galaxies within it.
A rapidly rotating neutron star with an offset magnetic field that appears to blink to a distant observer is called a?
A pulsar
What animal that easy to reproduce?
Scientists use Mice for experiments because they reproduce rapidly.
According to Hubbell's law more rapidly moving galaxies are now?
The law states that the galaxy's that are further away from us are moving faster.
How can you tell that some galaxies are far away and moving rapidly towards us?
You can tell by the blueshift in the spectrum; the only reasonable explanation for this blueshift is the Doppler effect. - Please note that most galaxies are moving away from us, not towards us.
Why did scientists use trilobites as index fossils?
Trilobites were rapidly evolving and widespread organisms, making them ideal index fossils.
What are some prevalent scientific attitudes and common values of scientists?
Scientists want to understand the universe in which we live, and respect honesty and knowledge. Scientists believe that the universe can be described mathematically and that it operates on the basis of natural law rather than on the basis of magic. Scientists value cooperation among scientists, so that knowledge can be shared and will advance more rapidly. Scientists believe that observation of reality takes precedence over traditional belief or established dogma.
What adaptation will probably develop most rapidly?
Scientists believe that those adaptations specifically created to deal with global warming will be the ones to develop the fastest. People, animals, and plants will need to quickly adapt to the planet's rapidly warming temperatures in order to survive.
Aren't Black Holes just hypothetical?
No. They appear to be real objects, and have been observed in various ways. Stars near the centers of galaxies as seen to move in ways that are possible only if they are rapidly orbiting black holes.
What term describe an apparent change in frequency of sound waves of rapidly moving?
Doppler Shift. It occurs in electromagnetic radiation too, though is really only significant at extremely high speeds such as the recession-rate of galaxies.
What field of scientists in chemistry investigates a new form of packaging material that breaks down rapidly in the environment?
I suppose that they are specialists in organic chemistry, catalysis, environmental chemistry.
What is the red shift of hydrogen?
The red shift depends on the relative motion of the emitting source and receiving detector. Hydrogen per se has no red shift. There is hydrogen with great red shift (in stars in galaxies far away that are moving rapidly away from us).
