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

Define erythroblastosis fetalis, Define Erythroblastosis Fetalis Beside...

Define Erythroblastosis Fetalis Besides the risk of a mismatch reaction during a second or during any subsequent  blood transfusion, giving Rh-positive, blood involves  risk in

Define systemic physiology, Define Systemic Physiology - physiology of grow...

Define Systemic Physiology - physiology of growth and development There is a change in the blood count and rate of haemoglobin (Hb) production during the early days. Cardiovasc

Air expands when heated, Air expands when heated To show that air expan...

Air expands when heated To show that air expands when heated, fit an electric light bulb flask or a bottle with a single- whole stopper or cork which has a 30-cm length of glas

Estimate the moisture content and density, 1. The composition of solid wast...

1. The composition of solid waste from a residential community is as follows: Component Percent by weight Combustibles ---

Explain the menopause, Explain the Menopause The cessation of menstruat...

Explain the Menopause The cessation of menstruation is menopause. Natural menopause typically occurs between 45 and 55 years of age. It is caused by changes in concentration of

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 peripheral nervous system, Define the Peripheral Nervous System ...

Define the Peripheral Nervous System The peripheral nervous system or PNS, is a part of the nervous system and consists of the nerves and neurons that reside or extend outside

Law of the sea convention in respect to fishing, Question: The Law of t...

Question: The Law of the Sea Convention came into force in 1994. Art.56(1)provides the coastal state with sovereign rights for the purpose of exploring and exploiting, conservi

Detail analysis of soil texture by feel method, Analysis soil texture by F...

Analysis soil texture by Feel Method Soil texture was recognised from very early times by experienced farmers from the "feel" of moist soil placed between the thumb and the for

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