Saturday, 6 October 2012

Units and Dimensions

In science, a type of question often asked is how much? how big? In order to answer such questions it is important to have systems of measurement which are consistent and understood by all.  For more click here.


Courtesy: Geoff Walker,  http://sst-web.tees.ac.uk

Friday, 5 October 2012

Know Medicinal Plants- Brahmi

Brahmi is a perennial, creeping herb whose habitat includes wetlands and muddy shores. The leaves of this plant are succulent and relatively thick. For more click here.


Courtesy: http://www.flowersofindia.net

Thursday, 4 October 2012

Naming Coordination Compounds

A complex is a substance in which a metal atom or ion is associated with a group of neutral molecules or anions called ligands. Coordination compounds are neutral substances (i.e. uncharged) in which at least one ion is present as a complex. For more click here.

Courtesy: http://www.chemistry.wustl.edu

Wednesday, 3 October 2012

Antibiotics

Antibiotics are substances that inhibit the growth of microorganisms (anti- metabolites ) or their replication (a bacteriostatic effect). They were traditionally obtained by extracting them from cultures of microbes. However, most drugs on the market today are semisynthetic derivatives of natural products. Sulfa drugs, discovered in the 1930s, were the first antimicrobial agents put into clinical use.
Photo by: PeterPhoto123

Tuesday, 2 October 2012

Nobel Laureates in Chemistry - Series 3

Nobel Medal

What is DNA?

DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. For more click here.

Courtesy: http://ghr.nlm.nih.gov/handbook/basics/dna

Monday, 1 October 2012

Determining Molecular Chirality

Chiral objects are not superposable with their mirror images. An excellent example of this is your hands. For more click here.


Courtesy: Steven A. Hardinger and Harcourt Brace & Company, http://www.chem.ucla.edu
Message from Bhagavath Geetha
  • Do not get over excited over happiness and do not get over depressed over sorrow.
  • Do not get over bonded with anyone and anybody because it can lead to problems and sorrow.
  • Never think that my duty is the topmost or lowermost. Every duty is respectful. The responsibility undertaken or given as per the position is the noblest duty.
  • Elevate yourselves, family, society and nation and never denigrate yourselves, family, society and nation.
  • We are our own closest relatives and if not properly utilised we will become our closest enemies.
  • There are possibilities of success and failure in any endeavour. One cannot assure success always.
  • Death is inevitable for everyone in this world. In any endeavour at the maximum an individual may die.
  • People may say good and also they may say bad. Approach them with stabilised mind.
  • Take anything after scientifically, logically and rationally analysing them.
  • Perform your duty, responsibility and accept the privileges eligible for you.
  • First change ourselves and then try to change others.
  • We are all instruments /tools in the hands of the nature for performing the duty. So do not think that I am doing the duty. Think that I am an instrument to do the duty.
  • Results of action may not be sweet always. Accept what ever may be the result.
  • Follow the path of great scholars who guided the world. Listen their messages.
  • Results and rewards will come and go but stick to your duty with devotion, dedication and sincerity.