● The Complete Reference To Java j2se, 5th edition ..Herbert Schildt..

book requested by ANIRBAN..

File Size:11.8 mb,.pdf file..

To get the the download link CLICK HERE

● ebooks : For Mechanical Engineering..

STRENGTH OF MATERIALS: PART 1 n 2... by TIMOSHENKO..
File size:34 mb..

click here to download.

● E-book: Schaum's Outline of Signals and Systems..

FILE SIZE:5890 KB

To download click here

● TOP 100 ENGINEERING COLLEGES IN INDIA IN THE YEAR 2007.

1. IIT Kanpur,Kanpur
2. IIT Kharagpur,Kharagpur
3. IIT Bombay,Mumbai
4. IIT Madras,Chennai
5. IIT Delhi,Delhi
6. BITS Pilani,Pilani
7. IIT Roorkee,Roorkee
8. IT-BHU,Varanasi
9. IIT Guwahati,Guwahati
10. College of Engg, Anna University,Guindy
11. Jadavpur University, Faculty of Engg & Tech,Calcutta
12. Indian School of Mines,Dhanbad
13. NIT,Warangal
14. BIT, Mesra
15. NIT,Trichy
16. Delhi College of Engineering,New Delhi
17. Punjab Engineering College,Chandigarh
18. NIT,Suratkal
19. Motilal Nehru National Inst. of Technology,Allahabad
20. Thapar Inst of Engineering & Technology,Patiala
21. Bengal Eng and Science University, Shibpur
22. MANIT,Bhopal
23. PSG College of Technology,Coimbatore
24. IIIT,Hyderabad
25. Harcourt Butler Technological Institute,Kanpur
26. Malviya National Institute of Technology,Jaipur
27. VNIT,Nagpur
28. NIT,Kozhikode
29. Dhirubhai Ambani IICT,Gandhinagar
30. Osmania Univ. College of Engineering,Hyderabad
31. College of Engineering, Andhra University,Vishakhapatnam
32. Netaji Subhas Institute of Technology,New Delhi
33. NIT,Kurukshetra
34. NIT,Rourkela
35. SVNIT,Surat
36. Govt. College of Engineering,Pune
37. Manipal Institute of Technology,Manipal
38. JNTU,Hyderabad
39. R.V. College of Engineering,Bangalore
40. NIT,Jamshedpur
41. University Visvesvaraya College of Engg.,Bangalore
42. VJTI,Mumbai
43. Vellore Institute of Technology,Vellore
44. Coimbatore Institute of Technology,Coimbatore
45. SSN College of Engineering,Chennai
46. IIIT,Allahabad
47. College of Engineering,Trivandrum
48. NIT Durgapur,Durgapur
49. SIT,Calcutta
50. Mumbai University Inst of Chemical Tech,Mumbai
51. Sardar Patel College of Engineering,Mumbai
52. P.E.S. Institute of Technology,Bangalore
53. Maharashtra Institute of Technology,Pune
54. Amrita Institute of Technology & Science,Coimbatore
55. National Institute of Engineering,Mysore
56. B.M.S. College of Engineering,Bangalore
57. Laxminarayan Institute Of Tech.,Nagpur
58. Nirma Institute of Technology,Ahmedabad
59. IIIT,Pune
60. Amity School of Engineering,Noida
61. JNTU,Kakinada
62. S.J. College of Engineering,Mysore
63. Chaitanya Bharathi Inst. of Technology,Hyderabad
64. IIIT,Bangalore
65. SRM Institute of Science and Technology,Chennai
66. SASTRA,Thanjavur
67. Bangalore Institute of Technology,Bangalore
68. The Technological Inst. of Textile & Sciences,Bhiwani
69. IIIT,Gwalior
70. JNTU,Anantpur
71. M.S. Ramaiah Institute of TechnologyBangalore
72. Gitam,Vishakhapatnam
73. NIT,Hamirpur
74. NIT,Jalandhar
75. SV University Engineering College,Tirupati
76. NIT,Raipur
77. Vasavi College of Engineering,Hyderabad
78. The ICFAI Inst of Science and Technology,Hyderabad
79. NIT,Patna
80. Cummins College of Engg for Women,Pune
81. VIT,Pune
82. Shri Ramdeo Baba K.N. Engineering College,Nagpur
83. Muffakham Jah Engineering College,Hyderabad
84. Karunya Institute of Technology,Coimbatore
85. D.J. Sanghvi,Mumbai
86. Sathyabhama Engineering College,Chennai
87. Kongu Engineering College,Erode
88. Mepco Schlenk Engineering College,Sivakasi
89. Guru Nanak Dev Engineering College,Ludhiana
90. Hindustan Inst of Engineering Technology,Chennai
91. SDM College of Engineering,Dharwad
92. R.V.R. & J.C. College Of Engg,Guntur
93. Jamia Millia Islamia, New Delhi,New Delhi
94. K.L. College of Engineering,Veddeswaram
95. Dharmsinh Desai Institute of Technology,Nadiad
96. S.G.S. Institute of Technology & Science,Indore
97. Jabalpur Engineering College,Jabalpur
98. Sree Chitra Thirunal College of Engineering,Trivandrum
99. G.H. Patel College of Engg & Technology,Vallabh Vidyanagar
100. Kalinga Institute of Industrial Technology,Bhubaneshwar

source:outlook india

● Techniche : The annual Techno-management Festival

Prior info:
This is the Annual Techno-Management festival of IIT Guwahati.
Sept : 5,6,7.
Click on the following link to know more:
http://www.techniche.in

The registration has already started,
to participate register there.

● Research in Nanotechnology

The reaseraches in nanotechnology can be studied under 4 heads, they are the current forms of researches and the information regarding them is gathered from wikipedia, in this blog I have discussed only about the nanomaterials, the information regarding the other heads will be published soon.
A)NANOMATERIALS:
This includes subfields which develop or study materials having unique properties arising from their nanoscale dimensions.
interface and colloidal science has given the idea of many substances which can be successfully applied to the field of nanotechnology such as carbon nanotubes and other fullerenes apart from various naoparticles and nanorods.
nanoscale materials can also be applied in case of bulk applications, the most recent commercial applications of nanotechnology are currently dealing with this aspect.Nanomedicines are an important application of such materials.Its aspects will soon be shown in this blog.
There are many terms used there where certain terms will seem alien to all of my age, so all those terms need proper explanation, they are described below:

1.INTERFEACE AND COLLOIDAL SCIENCE:they are a branch of chemistry dealing with colloids, heterogeneous systems which constitute particles whcih are in a mechanical mixture and has dimensions ranging from 1nm to 100nm and remains dispersed in a continuous dispersive medium.
2.CARBON NANOTUBES: they are the allotropes of carbon, that have nanostructure and whose length to diameter ratio is about 1000000.they are cylindrical carbon molecules that possess certain properties which make them useful applications in the field of nanotechnology, electronics and other branhces of material science. they also find useful applications in the fields of architecture. they have extraordinary strength and are excellent conductors of heat and electricity.inorganic nanotubes presently have also been synthesized
3.FULLERENES: although this term is familiar to everybody , but I still need to have some concepts clarified. they are the allotropes of carbon that are composed of carbon molecules which are arranged in a hollow sphere, ellipsoid, tube or plain like structure
4.NANOPARTICLES: particles which behave as a whole unit in terms of its property and transport, their size remains between 1-100nm.they belong to the clan of ultrafine particles and their size can be restricted to 2 dimensions , as told once they may or may not show size related intensive properties as shown by fine particles (100-250 nm) or bulk particles.
5..NANORODS:they are one type of nanoparticles that have length is to width ratio 3-5. they can be synthesised by direct chemical synthesis.

6.NANOMEDICINES: this topic needs a lot of discussion, but it done shortly here.it involves the medical application of nanotechnology involving medical uses of nanomaterials, nanoelectronic biosensors and some future applications of molecular nanotechnolgy( this topic will be discussed in details in some other blogs following this).nanomedicine seeks to deliver a variety of reasearch tools and some clinically beneficial devices in the near future.the nanomedicine research is directly funded by the US NATIONAL INSTITUTES OF HEALTH in 2005 following a 5 year plan , to set up 4 nanomedicine centres. according to the information published in NATURE JOURNAL in april 2006, about 130 nano-bsed drugs and delivery systems are being developed world wide. Nanomedicine is a large industry, with nanomedicine sales reaching 6.8 billion dollars in 2004, and with over 200 companies and 38 products worldwide, a minimum of 3.8 billion dollars in nanotechnology R&D is being invested every year. As the nanomedicine industry continues to grow, it is expected to have a significant impact on the economy.the medical uses of nanomaterials are: a]drug delivery, b] cancer treatment, c]surgery,d]visualization,e]nanoparticle targeting..etc.
It is greatly observed that nanoparticles are promising tools for the advancement of drug delivery,medical imaging and as diagonostic sensors.. However, the biodistribution of these nanoparticles is mostly unknown due to the difficulty in targeting specific organs in the body. Current research in the excretory systems of mice, however, shows the ability of gold composites to selectively target certain organs based on their size and charge. These composites are encapsulated by a dendrimer and assigned a specific charge and size. Positively-charged gold nanoparticles were found to enter the kidneys while negatively-charged gold nanoparticles remained in the liver and spleen. It is suggested that the positive surface charge of the nanoparticle decreases the rate of osponization of nanoparticles in the liver, thus affecting the excretory pathway. Even at a relatively small size of 5nm , though, these particles can become compartmentalized in the peripheral tissues, and will therefore accumulate in the body over time. While advancement of research proves that targeting and distribution can be augmented by nanoparticles, the dangers of nanotoxicity become an important next step in further understanding of their medical uses..


Contributed by
SAYAN SENGUPTA
ECE
TECHNO INDIA
EMAIL-chapta.sayan@gmail.com

● E-BOOKS : PROBABIITY, NUMERICAL ANALYSIS..

Introduction To Numerical Analysis...[its a .djvu file if u dont have not DJVU viwer check previous posts u'll get it from there]

click here to download


Spiegel M R: Theory and Problems of Probability and Statistics (Schaum's Outline Series)


click here to download

● Another ebook on C

Click on the following link to download the file
Click here

● SNAPS-Siliguri Instiitute Of Technology.

● Link For C:The Complete Reference by Herbert Schildt

Click here to visit the book


This book is really good.





share with us more e-books..
just email it to saha.a2006.wbutians@blogger.com
mentioning your name/stream/college/email id
DONOT ATTACH FILES

● e-books : Probability, Complex variables, Data Structure, Differential equations

Lipschutz S: Theory and Problems of Probability (Schaum's Outline
Series) - McGraw Hill Book. Co

Click here to download

Spiegel M R: Theory and Problems of Complex Variables (Schaum's Outline Series)
Click here to Download

Bronson R: Differential Equations (Schaum's Outline Series)
Click here to Download

data structure through c ..by yashvant kanetkar..
Click here to download

password: books_for_all

contributor: Animesh Paul/ECE/Siliguri Institute of Technology

● e-book: Numerical Mathematical Analysis by J.B.Scarborough

Numerical Mathematical Analysis by J.B.Scarborough
its a .djvu file....opens only wit djvu viewer..
Click here

for those who doesnot have djvu viewer
Click here to download


contributed by:
Animesh paul
stream : ECE
College : SIT

● e-book on C

Heyaa friends.I saw posts here regarding C books.Just wanted to tell you one thing.We all know Lets Us C is a very good book.But a better book for C that i want to suggest is the C:The Complete Reference by Herbert Schildt.Its a really good book.I have not yet got its link.I'll surely post it as soon as i get it.

● WANTED MORE CONTRIBUTORS

Friends, this is your blog, and this blog is the face of the whole batch... we have 60+ colleges... why is the participation in this virtual world so low??

we need contributors from :
● BCA
● BBA
● BTECH - electrical engineering
● BTECH - mechanical engineering
● BTECH - civil engineering
● BTECH - bio technology

please respond fast
just email your response to saha_a2005@yahoo.co.in
or just leave a comment here.

● Presidential form of Goverment in India?

The idea of a change in system of governance may seem preposterous but I have given it a serious thought before writing this blog. All the problems that the present government is facing are due to our system. The days of single party majority are gone and chances of it coming back, in the near future is remote. In the last two decades we have formed innumerable rag tag coalitions, which have hurt the Indian Democracy badly. Today the governments in power need to depend and give in to the whims and fancies of some king makers. The governments concentrate more on keeping themselves in power rather than on good governance. That’s the basic problem that we face today. We need to revamp this system in to more efficient one and for that wee need a Presidential form of government.

Two great and efficient democracies follow two kinds of Presidential form of governments, Russia and United States of America. I will prefer the latter but the Russian one will suite us better.

The Russian system is such that various steps are completed before a President is elected. First a lot of candidates throw their name into the gauntlet and elections take place. The two candidates that secure the highest number votes then contest the election.

How will it work in the Indian system? The so called ‘netas’ will file their nomination papers with at least ten parliamentarians forwarding it. Due to the fragmented nature of our country no one will secure fifty one percent votes in the first stage. So the two best candidates move on to the second round. The losers will then throw their weight on the candidate of their choice. Finally we will have our own President.

Does such a system not automatically favour candidates from the more populous states? one may ask. Is there any chance that someone from Manipur or Lakshadweep will ever win the votes of a majority of the country's voters? Could a Muslim or a Dalit be elected president? These are fair questions, but the answer surely is that their chances would be no better, and no worse, than they are under our present system. Seven of India's first 11 prime ministers, after all, came from Uttar Pradesh, which surely has no monopoly on political wisdom; perhaps a similar proportion of our directly-elected presidents will be UPites as well. How does it matter? Most democratic systems tend to favour majorities; it is no accident that every president of the United States has been a white male Christian (and all bar one a Protestant), or that only one Welshman has been prime minister of Great Britain. But i dare say that the need to appeal to the rest of the country will oblige a would-be president from UP to reach across the boundaries of region, language, caste and religion, whereas in our present parliamentary system a politician elected in his constituency on the basis of precisely such parochial appeals can jockey his way to the prime ministership. A directly-elected president will, by definition, have to be far more of a national figure than a prime minister who owes his position to a handful of political king-makers in a coalition card-deal. I would also borrow from the US the idea of an electoral college, to ensure that our less populous states are not ignored by the candidates: the winner would also be required to carry a majority of states, so that crushing numbers in the cow belt alone would not be enough.

Why should we underestimate the wisdom of the Indian Electorate? Jamaica with a 97% black population elected a white president. In Argentina a country that is proud of its European origins twice elected, son of Syrian immigrants, Carlos Saul Menem. Peru elected a Japanese origin President in Alberto Fujimori. Indeed, the voters of Guyana, a country that is 50% Indian and 47% black, elected as president a white American Jewish woman, who happened to be the widow of the nationalist hero Cheddi Jagan. A story with a certain ring of plausibility in India.

The adoption of a presidential system will send our politicians scurrying back to the drawing boards. Politicians of all faiths across India have sought to mobilise voters by appealing to narrow identities; by seeking votes in the name of religion, caste and region, they have urged voters to define themselves on these lines. Under our parliamentary system, we are more and more defined by our narrow particulars, and it has become more important to be a Muslim, a Bodo or a Yadav than to be an Indian. Our politics have created a discourse in which the clamour goes up for Assam for the Assamese, Jharkhand for the Jharkhandis, Maharashtra for the Maharashtrians. A presidential system will oblige candidates to renew the demand for an India for the Indians.

Any politician with aspirations to rule India as president will have to win the support of people beyond his home turf; he will have to reach out to other groups, other interests, other minorities. In that may lie the presidential system's ultimate vindication

NAME: KRISHNENDU SANYAL
STREAM: BBA
COLLEGE: TECHNO INDIA, SALT LAKE, KOLKATA
EMAIL: sanyal.krishnendu@gmail.com

● Advent of Nano-technology and Industrial revlution

Nanotechnology is not an individual science or technology. It is a uniting expression for the multi-disciplinary area of production technologies operating in the area of extremely small size particles and materials starting from individual atoms and molecules. Hundreds of products involving nanotechnology are already available and the future applications seem endless in the areas such as biomedicine, computers, consumer products and energy.
So far we have heard of coatings like non-stick pans, self-cleaning window panes, non-scratching paint and sun-screens. In the future we may encounter medical devices which could possibly travel in the human body and cure disease at the cell-level and nanorobots capable of self-assembly
WHAT EXACTLY IS NANOTECHNOLOGY?
A nanometre is one millionth of a millimetre. One human hair is about 100.000 nm thick. Generally when discussing nanotechnology it is defined as handling research and technology in the area between 1 and 100 nanometres the aim of which is to created materials with new properties and functions associated with the small size.The idea of nanotechnology is not new. Richard Feynman’s speech “There’s Plenty of Room at the Bottom” at Caltech in 1959 suggested that the direct manipulation of individual atoms is a more powerful form of synthetic chemistry. The invention of the scanning tunnelling microscope in 1981 by Gerd Binnig and Heinrich Rohrer from IBM, has in particular led to expanding research and the development of the first commercial products in the late 1990s. The inventors received the Nobel Prize in Physics for their work in 1986.Nanosize materials appear in some forms naturally as viruses or particles in volcanic ash. Some particles are produced by human activities like diesel exhaust and other combustion processes. It has been estimated that 50.000 kg/year of nanosized materials are being produced through these unintentional processes. There are negative impacts on people’s health especially in regards to causing respiratory diseases. However, the research results are not yet comprehensive.


The nanotechnology research aims at creating totally new materials not available anywhere before. The characteristics of nanomaterials can be surprisingly different from the same materials in their traditional form. This is because in nanosize the laws of quantum physics and not of classical physics are valid. Insulating materials may become electrically conductive and insoluble materials soluble. In addition, features such as hardness and durability may increase dramatically making these materials excellent for lightweight structures. Many of these characteristics are highly desirable for various products. One feature of the materials is that the smaller the particle gets, the higher the surface area is to the volume ratio. This means that the material gets more reactive with other materials. The feature can be used for example in medical applications, but it may also pose new health risks.
Nanotechnology has been welcomed with enthusiasm for all the promises it holds. Some of the predictions seem to be pure science fiction – like the idea of self-replicating nanomachines getting loose and changing all living material into “grey goo”. But even the already known applications are often surprising and they are pushing the limits of the human imagination.

.RISKS & RISK MANAGEMENT

When considering the wide scope of applications and the strong impact expected on economies it is easy to say that there are great variations in the associated risks as well. In addition to the business risks, risks related to intellectual property and the political risks the main concern at this stage are the risks related to human health. We do not yet know whether the nanomaterials are harmful to people. The nanoparticles can enter a human body through inhalation, ingestion or directly through the skin and they can accumulate in the body. It is possible that they travel through cell walls. Their toxicity or carcinogenic properties have not yet been comprehensively researched. As the production volumes are still small, the exposure is not yet major. In most of the applications the particles are included in other materials thus decreasing the possibility of direct exposure. The first area where we might find evidence of harmful effects is in occupational health and safety. Even if the nanomaterials as such are not more dangerous than any other substances, all their health impacts are not yet known. There have been extensive investments in the research of the health impacts simultaneously with the practical solutions of the new technology being introduced.But the liability and recall risks will also increase as the development progresses. Products will end up with the final consumer. If the still unrecognised health impacts only manifest themselves after long term use of the products by numerous consumers, the liability could theoretically accumulate to catastrophic dimensions. The danger of illnesses comparable to those related to asbestos is considered improbable. However, it is important to approach the potential of a massive risk seriously in advance, even if it is seen as theoretical.Another area of still unknown risks is the environment. What are the possibilities of the materials ending up in the environment and causing irreparable damage? How will the waste disposal of the used products be handled? The nanomaterials may not be biodegradable in the same way as larger scale materials. They may interact with other substances and accumulate in nature. But at the same time there are tests being carried out studying the use of some nanoparticles to detoxify the environment from for example PCB or chlorine and the use of nanotech sensors to monitor environmental status.
Nanotechnology is an enabling technology offering new possibilities to many existing industries and products. This means that all industries are affected through it and have to respond to the risk management challenges. The risk management is not straightforward as there is not any singular “nanorisk” to manage. At the moment there is no available terminology, standards, measuring methods or agreed risk management tools for the special risks associated with nanotechnology.

POSTED BY:
name: SAYAN SEN GUPTA
stream: ECE
college: TECHNO INDIA, SALT LAKE
e-mail: chaptasayan@gmail.com

● Objective type or subjective type.Have your say?

There is a never ending debate on whether objective type question is better or subjective type.I personally feel that objective type question has a edge over subjective type.The reasons are
1.In all the major institute like iit’s we have objective type paper.
2.In the entrance examination for post graduate courses like CAT we have objective paper so in order perform well in these all India examinations we must practice objectives.
3.In the technical section of campus interview companies set objective type paper.
For example tech mahindra in their techinal exam at heritage institute of technology gave
100 ojective to solve in 1 hour.so without prior practice it is impossible to solve so many questions in so short time.
4.most importantly if the question pattern is objective type then there is no scope for suggestion,student is compelled to go through the entire syllabus.
5.students often complain that there marks vary as different teachers give different marks on same answer.so by switching to objectives we also eliminate this problem.

In this context by objective I in no way mean mcq with one option correct.by objective I mean mcq with more than 1 option correct,assertion-reasoning,matrix match,short answer type question etc.By going for these options we also minimize the chances of guess work.
I know many of you think alike or otherwise.
Please let us know what u feel regarding this
matter.

● Let us C ..Yashwant Kanetkar -ebook

To download the ebook:
Click here

● Are We Employable? - part 1

Now that employability is the buzz word currently doing the rounds in academic arenas... arent we supposed to counsel ourself and ask to ourself this very simple question.... Are we employable?....Read the full article



If you like the article.. please post comments.

send us your articles... email it to saha.a2006.wbutians@blogger.com

● Can we determine the value of infinity?

Our Maths teacher used to say, you can determine the value of infinity if you have a reference. Say, you are standing in front of a parallel railway track. It seems that they

rail lines are meeting each other. He says, that point is infinity with respect to you. (Parallel lines meet at an infinite distance)
Now the question is...Can we really determine the value of Infinity?
By definition, parallel lines are always same distance apart, no matter what. This is math, not physics, and definition, not theory or theorem. Thus, they do not.
The railway lines are (optical) illusion, based on physics, not math. Although true, the do look to be closer is valid. Also a highway going straight for long distance will appear to have sides meet, to where it shrinks to a point. That is optics. Physics. Not math. Perhaps teacher was goading students for such reply (get you grade of A+ ??).
A more modern view of some, is more relevant to the infinity term. A line (or more) going on for ever and ever -- (if it had a beginning) will meet itself over that infinite distance. Thus if you got on that highway, and travelled straight forever, you'd eventually arrive at the place you began. What a stretch, huh? I think this one, while sounding more like physics than math, began a century or more ago inside concept of non-euclidian geometry (math) or curved_space (now astrophysics?). If any continuing interest, you might want to try those on as search terms.

1. You can never determine the value of infinity because the term intrinsically has no numeric value or maximum.
2. If the lines are parallel then they are parallel, whether you measure them after one yard, one mile or any distance then they must remain separated by the same distance. That is what parallel means.

3. The apparent meeting of the lines at a distance is an optical illusion and has nothing to do with their mathematical relationship to each other.
4. If you can accept that the term infinity means 'never ending' then the lines will never meet.
Infinity can simply be beyond the limit of our understanding. If we take a child who has never left their village, then infinity can be as far as the next village. If we take a man who has never left his country, then infinity can be the next country. This may not be an entirely accurate description of infinity, but it does fit to a degree.
We consider that a modern explanation of infinity to be further than the furthest star. Basically up and out. The "outside". But today we know now that we will know more tomorrow. So what ever label, description, idea, measurement or theory we assign to the term "infinity" WILL, one day, be exceeded.
What else?
"To infinity, and beyond!" (Buzz Light year).
This sort of supports my idea that infinity is a boundary that is constantly moving. We have beliefs in what we cannot know and theories and proofs to support what we do know. Is infinity just another belief system yet to be defiled by proof? Buzz has faith in his abilities when he is only (and I apologize for the spoiler) a toy.
Infinity is simply a boundary of our own imagination. A much harder term, I feel, is "forever". Time vs distance?
To put the discussion on a scientific basis, the concept of infinity stems from that of innumerability. That is, whatever we are discussing, angles, equations, distances, and so on, we equate each of our "objects" with an integer number. When we run out of numbers for our counting we talk of an enumerable quantity. This is on first consideration, infinite. But if we try counting real numbers (those with decimal places) by association with integers we discover that there are more reals than integers. This is a second infinity which is not equal to the first.
It was Gregor Cantor who investigated these things at the turn of the twentieth century.
So, I'd go back to your maths master and ask him, which infinity he is talking about!
These two definitions of infinity were first proposed by Aristotle. He called the first one (running out of numbers to count) the infinity in length and the second one (infinity in decimal places) infinity in divisions.
As we are talking about parallel lines meeting at infinity, we ar talking about infinity in length.
In a more practical way, any finite number can be considered to be infinite if it is much greater than another one which you are comparing. For example, when calculating the orbits of small planets, such as the earth, you may consider that the sun is at a fixed point and doesn't move because it has such a great mass compared to earth. But this would only be totally true if the sun had infinite mass. So you can say, as an approximation, that the sun has infinite mass compared to earth. This kind of approximation is very useful in physics, and yields good results if used correctly.
This approximation is what your teacher used when he talked about the rail tracks. The distance between the tracks (lets say, 1 meter) is much smaller then the length of the rail track (100's of kilometers). So when you try to see the whole track, due to the change of scale, they seem to be together, because its length is much greater than the the width. When you are close to the track (lets say 2 meters close) you can see they are not connected. But if you look far away (10 kilometers) the width is so small that you cant resolve the two tracks anymore.
The rail track infinity is an approximate infinity. It is an open question today for physicists if real infinities do happen in nature. General relativity and quantum mechanics predict the existence of such true infinities (sometimes called singularities). But its not clear if they really exist of if they are a flaw in the theory. Anyway, physicists must work their way around them, since you cant make calculations or measurements with infinite values.

● e-books on C

copy n paste da link on ur browser n download da zip folder

Click here




share with us other e-books
email it to
saha.a2006.wbutians.blogger.com

● snaps-heritage institute of technology

● snaps - Bengal College of Engineering and Technology

Bengal College of Engineering and Technology... snaps!

send us your college pics... email it to
saha.a2006.wbutians@blogger.com

● Digital Design Third Edition by Morris Mano

So guys here is the link to Digital Design by Morris Manno, third edition. Its a big file(70 MB) so be sure to have time while downloading it.


Click here

● List of Authors ●

||~~~● Anirban Saha ♣★
||--------►Computer Science and Engineering
||--------►Bengal College of Engineering and Technology,Durgapur
||--------►joined: July 8th 2008
||
||
||~~~● Proma Majumdar
||--------►Information Technology
||--------►Netaji Subhash Engineering College, Kolkata
||--------►joined: July 8th 2008
||
||
||~~~● Sayantan Thakur ★★★(1/2)
||--------►Information Technology
||--------►Guru Nanak Institute of Technology, Kolkata
||--------►joined: July 9th 2008
||
||
||~~~● Arnab Banerjee ♣★★
||--------►Electronics and Communication Engineering
||--------►Heritage Institute of Technology, Kolkata
||--------►joined: July 10th 2008
||
||
||~~~● Shuvendu Chatterjee ★★★(1/2)
||--------►Electronics & Instrumentation
||--------►Techno India, Saltlake, Kolkata
||--------►joined: 13 july 2008
||
||
||~~~● Krishnendu Sanyal ★(1/2)
||--------►Bachelor of Business Administration
||--------►Techno India, Saltlake, Kolkata
||--------►joined: 21 july 2008
||
||
||~~~● Dipanwita Chawdhury
||--------►Bachelor of Computer Application
||--------►Institute of Engineering and Management Kolkata
||--------►joined: 22 july 2008
||
||
||~~~● Animesh Paul ♣
||--------►Electronics and Communication Engineering
||--------►Siliguri Institute of Technology, Siliguri
||--------►joined: 23 july 2008
||
||
||~~~● Arnab Chakroborty
||--------►Computer Science and Engineering
||--------►Asansol Engineering College
||--------►joined: 28 july 2008
||
||
||~~~● Sayan Sengupta
||--------►Electronics and Communication Engineering
||--------►Techno India,Salt lake, Kolkata
||--------►joined: 28 july 2008

last updated: 04 August 2008

● Nice blog for us

Friends, I found this to be very cool blog... visit it and learn more,!

● Click here to visit placements india blog

● e-books: Data Structures and Algorithms

So finally......Here are the links to some of the most wanted books n engineering colleges..Currently I am only uploading the link to Data Structures and Algorithms by Alfred V. Aho, John E. Hopcroft, Jeffrey D. Ullman. Its a rar. So you need to extract it via Winrar. The files in it open by Mozilla Firefox. I don't know whether it opens without Firefox or not but feel free to experiment.Just copy paste the url in your browser.It will take to you a page. See on the right hand side there will be an option which says "Click here open the protected link and download the file."

Just click on there and it will take you to the download page.If bad file please post so that I may rectify it. I will be posting the others soon which includes Digital Design ,Third Edition by Morris Manno. Please if you need any book post the proper name of the book with the author and I will post its link if I get it. Thank you!

Here's the first link:
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http://share0.com/get?re=280315345

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