JEE Main 2015 Chemistry Study Material Blog

November Top 10 Posts
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Entry	Pageviews
IIT JEE Chemistry Concepts Revision Materials Sep 30, 2012, 1 comment	280
Stereochemistry - Introduction Jul 21, 2012	276
Magnesium - Chemistry Mar 22, 2014	258
Chemistry Knowledge History - January Jul 21, 2012	250
JEE (Advanced) 2013 Chemistry Syllabus Apr 20, 2013	241
Chapters - Modern Chemistry for Class XI by Dr. S.... Apr 30, 2012, 3 comments	137
Preparation of Ferrous ammonium sulphate (Mohr’s s... Oct 16, 2008	102
R.C. Mukherjee, Modern Approach to Chemical Calcul... Dec 28, 2008, 3 comments	70
Difference Between a Metal and Polymer Feb 20, 2010	58
IIT JEE Books Download Oct 20, 2007	34

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Famous Scientists - Birthdays

Engineering Sciences - Management Sciences - Mathematics and Statistics - Medical Sciences - Natural Sciences - Physical Sciences - Social Sciences

January



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May
  1-  Santiago Ramon y Cajal
  2 - Sir James Dyson
  3 - George Paget Thompson (1892) - NPW Physics
  4 - Thomas Henry Huxley (1825)
  5 - Arthur Leonard Schawlow
  6 - Victor Grignard
  7 -  Sidney Altman - NPW Chemistry
  8 -  Andre Lwoff - NPW
  9 -  Michael Levitt NPW Chemistry
10 - George E Smith
11 - Richard Feynman
12 - Dorothy Hodgkin - Nobel Prize Winner
13 - Ronald Ross,
14 - B.R.Ambedkar - Phd(Economics),
15 - Pierre Curie (1859)
16 - Illya Illyich Mechnikov (1845)
17 - Odd Hassel (1897)
18 - Vincent du Vigneaud (1901)
19 - Sir Cyril Norman Hinshelwood
20 - Eduard Buchner (1860)
21 - G.S. Maddala (Econometric Book author)
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23 - Michael Porter
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June
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30 - C.N.R. Rao

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30 - Henry Ford (1863)
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October
  1- Jimmy Carter
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  6- Le Corbusier (1887), George Westinghouse (1846)
  7 - Niels Bohr (1885)
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14 - W.Edwards Deming (1900),
15 - Avul Pakir Jainulabdeen, Dr. Kalam (1931),
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17 -  Zhao Ziyang (1919)
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25 - Pablo Picasso (1881)
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27 - James Cook (1728),  Isaac Singer (1811)
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30 - Homi J Bhabha,
31 - , Christopher Columbus (1451)


November
  1 - Alfred Wegener (1980)
  3 - Amartya Sen (1933) - Nobel Laureate in Economics - Bharat Ratna, James Rothman (1950)
  7 - C.V. Raman
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19 - Peter Drucker (1909)
19 - Jack Welch - CEO, General Electric
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26 - Norbert Wiener (1894) - Scientist
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28 - William Blake - Philosopher
29 - Ambrose Fleming (1849) - inventor (diode)
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  4 - Thomas Carlyle
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24 - James Prescott Joule (1818)
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25 - Issac Newton (1642)
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27 - Johannes Kepler (1571)
27 - Louis Pasteur (1822) - Steriization and Pasteurization
28 - John Von Neumann
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30 -   Randy Schekman (1948)
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http://www.famousscientists.org/



Nobel Prize Winner 2013

Medicine

James Rothman
Randy Schekman
Thomas Suedhof


Physics

Peter Higgs
Francois Englert

Alfred Wegener - Biography and Scientific Contribution

Birthday - 1 November 1880

Alfred Wegener was born in Berlin in 1880. He studied in Germany and Austria, receiving his PhD in astronomy. But  he shifted his attention to meteorology, the new science of weather, quickly after his PhD. He took up teaching meteorology at the University of Marburg and became  a very popular lecturer.

In 1910, Wegener noticed the matching coastlines of the Atlantic continents on maps and they felt that they were separated and were part of  single land mass earlier. In 1911, he published a textbook on the thermodynamics of atmosphere. In January 1912,  he put forth the idea of "continental displacement"   In that year only, he got married to the daughter of Germany's leading meteorologist.

He served in World War I and was wounded twice. He published his theory on separation of the continents  in 1915. They constituted the first focused and rational argument for continental drift. He received support of some scientists but many scientists opposed him including his father-in-law. His father-in-law was also unhappy that Wegener was neglecting meteorology and entering into the unknown subject  of geophysics.

In 1926 Wegener was made  professor of meteorology. In 1930 he sailed from Denmark as the leader of a major expedition to Greenland.  He celebrated his fiftieth birthday on November 1 during this expedition. But he lost his way one day during the expedition and there was a blizzard. His body was found halfway between the two camps.

Wegener's theories were tested and extended by Harry Hess and others. In 1960, Hess proposed the mechanism of sea-floor spreading, which would explain how the continents moved. Newly discovered exploration techniques were employed to test this theory and support was provided to Wegener's chief idea.


http://www.pbs.org/wgbh/aso/databank/entries/bowege.html

Continental Drift Theory Explanation - BBC Science

Decoy Axl Proteins to Prevent Metastasis in Cancer Patients - Stanford Research

A paper describing the research was published online Sept. 21 in Nature Chemical Biology. Cochran, Associate Professor and Amato Giaccia, professor of radiation oncology, share senior authorship of the paper. The lead author is Mihalis Kariolis, a former graduate student in Cochran’s Stanford lab who is now a postdoctoral scholar in Giaccia's lab.

Presently doctors try to slow or stop metastasis with chemotherapy, but these treatments are unfortunately not very effective and have severe side effects.

The Stanford team's research show that  metastasis can be stopped, without side effects, by preventing two proteins – Axl and Gas6 – from interacting to initiate the spread of cancer cells to other parts in the body from the original site where cancer originated. Their experiments were successful in cancer affected mice.

http://news.stanford.edu/news/2014/september/metastasis-protein-therapy-092114.html


The article was published in Mumbai Mirror of 23 September 2014.

Rise in Sea/Ocean Level Due to Climate Change - Environmental Degradation

After a period of approximately 2,000 years of little change (not shown here), global average sea level rose throughout the 20th century, and the rate of change has accelerated in recent years. When averaged over all the world’s oceans, absolute sea level increased at an average rate of 0.06 inches per year from 1880 to 2012. Since 1993, however, average sea level has risen at a rate of 0.11 to 0.12 inches per year—roughly twice as fast as the long-term trend.
Relative sea level rose along much of the U.S. coastline between 1960 and 2013, some stations registered increases of more than 8 inches


http://www.epa.gov/climatechange/science/indicators/oceans/sea-level.html

http://ocean.nationalgeographic.com/ocean/critical-issues-sea-level-rise/

http://www.bbc.co.uk/climate/impact/sea_level.shtml

Science Shop - Concept, Development and Contribution

Science shops provide the science services to the society with a mission to respond to the needs of the various people in the society in a social enterprise way. They are normally started in universities and students provide the research support in the activities or projects of the science shop. The science shop provides a project based learning route to students.



http://www.livingknowledge.org/livingknowledge/science-shops/faq/about-science-shops

History of Science - 1701 to 1800 AD

1727
Benjamin Franklin (1706-1790) started Junto, in America, wherein persons doing scientific work gathered and exchanged their studies.