Physical universe, Science

Assignment Help:

Physical universe:

The universe is vast. The Earth we live on appears to be just  a speck of dust circling a small star in a remote corner of  an obscure galaxy. If  we are a speck in the immense space, we also occupy dnly an instant in the expanse of  time. The universe is also very old. We now know  that  it  is about fifteen or twenty billion years OM, while we, the human beings have been around for only two million years or so. This vast and ancient universe is populated with a variety of objects. Let us now understand what objects constitute the universe and how they are distributed. In other words, what the physical structure of  the universe is. In doing so, we will not go into its chemical composition or aoy other details. However, before we embark on this venture, we will give you an idea of the cosmic distances, so that you're  able to appreciate what follows.  


Related Discussions:- Physical universe

Decline os science, explain the factors that led to the decline of science ...

explain the factors that led to the decline of science in europe during iron agen..

Belt derive used in golden era, Belt-drive: The beltdrive  is a mmprati...

Belt-drive: The beltdrive  is a mmpratively simpler device than gearing for transmission of power and for increasing or decreasing the speed of motion. Beltdrive came to India

Explain the posterior pituitary, Explain the Posterior Pituitary The po...

Explain the Posterior Pituitary The posterior pituitary gland or neurohypophysis is located immediately behind the anterior pituitary gland, as you may have seen in Figure.

Define the role of bacteria in soil flora, Define the role of Bacteria in s...

Define the role of Bacteria in soil flora The most abundant soil organisms are primitive, very minute, unicellular organisms devoid of chlorophyll. Bacteria are most abundant i

Explain fehling''s test, In Fehling's Test The free sugar group (aldehy...

In Fehling's Test The free sugar group (aldehyde or ketone) reduces the Cu  (cupric) ions in  an alkaline environment  to form Cu 10 (cuprous oxide) and the sugar is itself ox

Severe bleeding-controlling bleeding, Severe Bleeding In case of seve...

Severe Bleeding In case of severe bleeding, use the following steps: (1) Control bleeding by the following means: (a) Apply direct pressure on the wound for 5-15 minute

Define white blood corpuscles as internal defence mechanism, Define White B...

Define White Blood Corpuscles as Internal Defence Mechanism The white blood cells are probably the most important part of our immune system. You may recall reading about the wh

Explain bile - external defence mechanism, Explain Bile - External Defence ...

Explain Bile - External Defence Mechanism It is an alkaline secretion of the liver, which checks the growth of foreign bacteria on the partially digested food.

Explain the primary processing of pulses, Primary processing of pulses ...

Primary processing of pulses Dry pulse seeds have a tight and fibrous seed coat (husk or skin) that envelops the cotyledons, which often is indigestible and may have a bitter

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd