శాస్త్రీయ దృక్పథం

విజ్ఞానశాస్త్ర అభిమానులకు "విజ్ఞానశాస్త్రము"బ్లాగు స్వాగతం ఈ బ్లాగు ప్రజలలో,విద్యార్థులలో ఉపాధ్యాయులలో శాస్త్రీయదృక్పథాన్ని పెంచుటకు ఉద్దేశించబడినది.

Sunday, 18 December 2011

రసాయనశాస్త్ర workshop

మేము విగ్యాన్ ప్రసార్ ,న్యూ ఢిల్లీ ,మరియు జనవిజ్ఞాన వేదిక వారు సంయుక్తం గా  16/12/11 నుండి 18/12/11 వరకు విజయవాడ లయోలా కళాశాల లో నిర్వహించిన రసాయనశాస్త్ర workshop కు హాజరయ్యాము.ఆంధ్రప్రదేశ్  నలుమూలల నుండి వచ్చిన ఉపాధ్యాయులకు ఇది మంచి అనుభవం.
ఇందులో పాల్గొన్నవారు
1) డా: వెంకటేస్వరాన్  DST from govt of india
౨ప్రొ:కే.లక్ష్మా రెడ్డి  NIT WARANGAL cource coordinator
3)ప్రో: కృష్ణం రాజులు నాయుడు
4)ప్రో:ఆదినారాయణ
5)ప్రో:కోయ వెంకటేశ్వర్లు
6)ప్రో:రామచంద్రయ్య  నిట వరంగల్
7)ప్రో: రానా కోల్కత
 8) స్వాతి బేడేకర్ గుజరాత్
9)రమేష్ మరియు మోహన్  జన విజ్ఞాన వేదిక
10) టి శ్రీకుమార్
వీరంతా ఉత్తేజకమయిన  ఉపన్యాసాలు మరియు అద్భుత మయిన   ప్రయోగాలు  నిర్వహించారు.తరువాత జన విజ్ఞాన వేదిక విజయవాడ లెనిన్ సెంటర్ లో ఒక సైన్సు మేజిక్ షో నిర్వహించింది  .వీటికి సంబందించిన కొన్ని చిత్రాలు క్రింద చూడండి.




















visit www.vigyanprasar.gov.in

Saturday, 26 November 2011

Friday, 11 November 2011

నోబుల్ ప్రైజ్ గ్రహీత H.B ఖోరాన మరణం




భారత సంతతి కి చెందినా నోబుల్ ప్రైజ్  గ్రహీత మరియు MIT  లో బయాలజీ,కెమిస్ట్రీ లలో ప్రొఫెసర్  అయిన ఖోరానH.B మరణించారు.ఆయన వయస్సు 89.ఫిజియాలజి  ,మెడిసిన్ లలో మరియు జన్యుశాస్త్రములో వీర్యము పై పరిశోధనలు  చేసారు. 1968 లో నోబుల్ ప్రైజు వచ్చింది 
                              ఖోరానా 1922 లో ప్రస్తుత పాకిస్తాన్ లో భాగమైన రాయపూర్ ,పంజాబ్ రాష్ట్రం లో జన్మించారు.నోబుల్ ప్రైజు గెలుచుకున్న తరువాత తన స్వీయ చరిత్రలో ఇలా వ్రాసుకున్నారు."మా తండ్రి చాలా పేదరికం లో ఉన్నప్పటికీ మమ్ము చదివించారు.వంద మంది ఉన్న ఆ ఊరులో మాదోక్కటే అక్షరాస్యతా కుటుంబం "
     ముల్తాన్ లో హై స్కూల్ విద్య అభ్యసించారు.తర్వాత పంజాబ్ university  లో  డిగ్రీ p.g పూర్తి చేసారు.తరువాత లండన్ లోని లివర్పుల్  university  లో చదవటానికి భారత ప్రభుత్వ scholarship సహకారం తోdoctorate చేసారు.switgerland లో పోస్ట్ డాక్టోరల్  వర్క్ చేసారు.1960 లో మాడిసన్ లోని విస్కాన్సిన్  university   కి వెళ్లి  enjyme reasearch institute director  గా వున్నారు ఇక్కడ తన సహచరులతో కలిసి మాంస క్రుత్తుల సంయోగం లో RNA  సంకేతాలపై చేసిన పరిశోధనకు 1968 లో నోబుల్ ప్రైజ్  సాధించారు.

Sunday, 6 November 2011

APCOST,విజయవాడ చిత్రాలు

విజయవాడ భవానిపురం లో APCOST  వారు సైన్సు సెంటర్ నిర్వహిస్తున్నారు. ఇక్కడ 6 నుండి 10   వ  తరగతి వరకు విద్యార్థులకు ,ఉపాధ్యాయులకు  ఎంతో ఉపయోగకరమయిన  60  ప్రయోగాలు స్వంతం గా చేసి చూసుకునే విధంగా వున్నాయి.పాటశాల యాజమాన్యాలు వీటిని చూడటానికి పిల్లల్ని ప్రోత్సాహించండి.  ప్రక్కనున్న చిత్రాలు గమనించండి



Wednesday, 26 October 2011

APCOSTకు సైన్సు యాత్ర

విజయవాడ లోని కృష్ణా నది ఒడ్డున వున్నా భావాన్ని పురం లోని APCOST సైన్సు సెంటర్ ను నా  మిత్రులతో  కలిసి  సందర్శించాను.మేము మార్కాపురం నుండి ఉదయం ట్రైన్ లో వెళ్ళాము.అక్కడ మూడు గంటలసేపు గడిపాము.అక్కడి ఫెఇల ఆఫీసర్ J.Thrilleswara rao మాకు సహాయం అందించారు.  మేము అక్కడ 62 ప్రయోగాలను 
చేసిచుడటం మాకు మంచి అనుభవం ఇది విద్యార్థులకు,ఉపాధ్యాయులకు చాలా ఉపయోగం.ఆంద్ర ప్రదేశ్ లో ఇంకా రెండు ఇటువంటివి వున్నాయి .1)అలిపిరి ,తిరుపతి 2)బిర్ల సైన్సు సెంటర్ హైదరాబాద్ .పాటశాల యాజమాన్యాలు,సైన్సు ఉపాధ్యాయులు వీటిని చూడటానికి విద్యార్థులను ప్రోత్సహింసవలెను. కు సైన్సు యాత్ర 

Tuesday, 11 October 2011

విశ్వ విస్తరణ కనుగొన్నందుకు నోబెల్ ప్రైజ్

సుపెర్నోవాలు విశ్వం యొక్క విస్తరణను వేగవంతం చేస్తాయని కనుగొన్నందుకు ముగ్గురు అమెరికన్  శాస్త్రవేత్తలకు 2011  నోబుల్ ప్రైజ్  వచ్చింది వారు 1)saul perlmutter  Lawrence Berkeley National Lab, 2)Brian Schmidt at the Australian National Lab 3) Adam Reiss at Johns Hopkins University 
     విశ్వం  విస్తరణ  గురుత్వాకర్షణ  వలన మందగించాలి . అని అనుకుంటారు కాని విస్వవిస్తారణ వేగవంత మైనదని ఈ సంవత్సరం నోబెల్ ప్రైజ్ విజేతలు 1998 లోనే చెప్పారు .దూరం లో వున్నా సుపెర్నోవాలు దగ్గరిలోవున్న సుపెర్నోవాల కన్నా తక్కువ కాంతివం తం గా వుంటాయి ఇలాంటి అంశాల ఆధారం గా విశ్వం విస్తరిస్తుందని వీరు కనుగొన్నారు.ఈ ఆవిష్కరణ  అంతరిక్ష శాస్త్రం లో ఒక మైలురాయి రాబోయే తరం సైంటిస్ట్ లకు ఇది ఒక సవాలు.

Saturday, 24 September 2011

నూతన ఆవిష్కరణలు


                        నూతన ఆవిష్కరణలు
మనం శాస్త్రవేత్తలు కనుగొన్న చాలా ఆవిష్కరనలను ఉపయోగించుకుంటూ ఆనందిస్తున్నాము కాని వారి కష్టాన్ని మనం గుర్తు వుంచుకోలేక పోతున్నాం వాటిని కనుగొనటానికి వారు ఎంతో కాలాన్ని,ధన్నాన్ని వెచ్చించారు.వారి సంవత్సరాల కృషిని నేడు మనం అనుభవిస్తున్నాము.వారందరి గురించి తెలుసుకోవటం మన ప్రాధమిక బాధ్యత .
1) Air conditioning                        -              Willis carrier [U.S, 1911
2)      Barometer                             -              E. Torricelli [Italy,1643]
3)      Bicycle                                      -                  baron carl von drais Sauerbronn[germany)  1816]
4)      Camera                                        -[Hand Held]George east man [U.S 1888][Poloriod land]]                                                                                                                                                                                                                 Edwin land [U.S. 1948]
5)      Clock, Pendulum                      -              Christian Huygens[The Nether land 1656]
6)      Computer                                   -              Charles Babbage [1830] , Steve Wozniak[U.S.,1976]
7)       Dynamite                                   -                              Alfred Nobel[Sweden,1867]
8)      Dynamo                                       -              Michael Faraday
9)      Electric lamp                               -Arc lamp-Sir Humphrey[England 1801]                                                                                                                                                                                                                
10)   Electromagnet                          -              William sturgeon, [England 1823]
11)   Electronic mail                           -              Ray Tomlin son[ U.S. 1972]
12)   Elevator                                       -              Elisha Goff [U.S. 1832]
13)   Helicopter                                   -               henrich Locke [Germany 1936]
14)   VCR                                                -              Sony Company[Japan 1975]
15)   Laser                                             -              Charles H-Towns, Arthur L.Schalow
16)   LCD                                                -                Hoffman – LaRodre, [Switzerland 1970]
17)   Microphone                               -              Charles Wheatstone [England 1827]
18)   Microscope                                -              (Compound) Z Janssen, [The Netherlands, 1590]
19)   Microwave oven                      -              Percy sponser [U.S. 1947]
20)   Motor,(electric)                        -              Michael Farady [England 1822]
21)   Motor cycle                                -              Edward Butler [England 1884]
22)   Parachute                                   -              Louis S.Lenormand, [France 1783]
23)   Pen                                                -              (fountain) Lewis.E.waterman [U.S.1884]
24)   Refrigerator                               - Alexender Twinning U.S.[James Harrison Australia 1850]
25)   Rocket                                          -              (liquid fueled)[Robert Goddard V.S. 1926]
26)   Rocket                                          -              Robert Goddard [U.S. 1926]
27)   Radio                                             -              James Clerk Maxwell England 1873
28)   Telegraph                                    -              Samuel [U.S.1837]
29)   Tape recorder                           -              Valdomar Poulsm[Denmark1899]
30)   Telephone                                  -              Alexander Graham bell[U.S.1876]
31)   Telescope                                   -              Galileo[Italy1609]
32)   Television                                    -[Icomscope-TV Camera table]Vladimirzworykin[U.S.1923]
33)   Thermometer                           -             Galileo[1593]
34)   Tractor                                          -             Benjamin Holt[U.S.1900]
35)   Type writer                                 -              Christopher Sholes,Carlos  Glidden[U.S.1867]
36)   World Wide Web                     -             TimBerners-Lee [England1989]
37)   Xerographs                                 -              Chaster Carlson[U.S. 1938]
38Transformer                              -          (electric)William Stanley us 1885


Friday, 2 September 2011

భారత దేశము లోని సైన్సు ప్రదర్శనశాలలు


 NATIONAL COUNCIL OF SCIENCE MUSEUMS(www.ncsm.org.in)
SCIENCE MUSEUMS IN INDIA                                                                      23)DSC DHENKANAL ORISSA
1)BIRLA INDUSTRIAL&TECHNOLOGICAL MUSEUM CALCUTTA              24)DSC DIGHA WB 
www.bitmcal.org                                                                                            25)GSC GOA 26)KAPILAS 2)VISWESARAYA INDUSTRIAL&TECHNOLOGICAL MUSEUM BENGALURU                        SCIENCE PARK
3)NEHRU SCIENCE CENTRE MUMBAI
4)NATIONAL SCIENCE CENTRE DELHI
5)science city Kolkata
6)CENTRAL RESEARCH&TRAINING LABORATORY KOLKATA
7)RSC LUCKNOW
8)SHRIKRISHNA SCIENCE CENTRE PATNA
9)RSC BHUBANESWAR
10)RSC TIRUPATI AP near alipirigate,new alipiri chittor by pass
11)RSC NAGPUR
12)RSC GUWAHATI
13)RSC BHOPALwww.rscbhopal.gov.in
14)RSC CALICUT
15)NBSC SILIGURI DARJEELING
16)KPSC KURUKSHETRA
17)SCIENCEPARK MUMBAI
18)DSC PURULIA WB
19)DSC GULBARGA KARNATAKA
20)DSC DHARAMPUR
21)DSC TIRUNELVELI

Friday, 26 August 2011

10 great scienists


Sir Jagadish Chandra Bose

He was the first renowned Bengali scientist who had an important contribution in the invention of Radio and microwave optics. He was born in Mymensingh in Bengal which is the current Munshiganj District in Bangladesh. He studied in Hare school in Kolkata and then he got his B.A. in Science degree from Calcutta University. Then he went to England and got a B.A. degree from Cambridge University and a B.Sc. from London University. After coming back to the country he started teaching Physics in the Presidency College at Kolkata. In his teaching career he had to prove his quality and talent as he was the first Indian to teach Science at the college. In 1894 he started to research on Radio wave to make wireless communication equipments. At the same time Italy’s Marconi also was researching on this project. He first invented "iron-mercury-iron coherer with telephone detector" and he is the first person to use a semiconductor junction to catch the radio waves. It is said that his work on millimeter wavelength made him 50 years ahead. Considering such things it is said that he was the real inventor of Radio but due to his less seriousness towards patent and the communication gap made Marconi to be regarded as the inventor of Radio.

After that he contributed in plant where he could make some vital theory of ascent of sap. In this research he showed that some living cells in the endodermis junction are the reason for the ascent of sap.


Guglielmo Marchese Marconi

Marconi is a Nobel laureate physicist from Italy. He is best known for his invention of Radio and he first introduced wireless telegraph system. He was born to a landowner father Giuseppe Marconi and his mother was Annie Jameson. He was very interested to science form his early life. He initially started working on electromagnetic wave or radio waves invented by Heinrich Hertz. Then after a long research he could figure out such a technology to communicate without wire. After his invention, he marketed this equipment for the commercial purpose and at that time he got a competitor free market in the U.S.





10great scientists


Louis Pasteur
He is one of the most famous contributors in the medical science. He first introduced the germ theory of diseases. This is regarded as the base of today’s microbiology. He found out some of the notion of the microbe and he could find out that the viruses were not detectable through microscope. Another important contribution of Pasteur is to protect harmful microbes in a way called “Pasteurization” where harmful microbes are destroyed by hitting the food. He is undoubtedly the most influential

10great scientists


Stephen Hawking

This famous scientist is considered as the greatest scientist of the twentieth century after Einstein. Haw king’s big bang theory and black hole theory has turned the attention of the world. He is the professor of Mathematics of the University of Cambridge. Though he is now about to be paralyzed, he is teaching through a computer supported a machine by which his world are compiled. His physical illness could not make him stop form his research. His famous book is “A Brief History of Time”.

10 great scientists of the world



scientists have enormous contribution in the advancement of human civilization. Throughout the history of the world, many scientists have dedicated their lives for research and innovation. Some of them even faced a lot of torture for their theories but they continued their mission and thus we are now in a modern world. I have made a list of 10 great scientists in the history. Well, naturally, I had to leave out a lot of great figures. However, I feel that my list represents some of the greatest scientists ever.
Aristotle
Aristotle is the Great philosopher who had a vast knowledge in different disciplines. Studying different subject he contributed led him to investigate natural phenomenon later on. At the age of 18 he admitted in to the young Greek aristocracy run by Plato, another Great Greek philosopher, and Aristotle became the most favorite student of Plato.
As a scientist Aristotle made a good contribution which was very influential for the development of the science over the year. Mainly he spent most of his life researching the natural science and he did the researches without making reference to the Mathematics which was later proven as the weakness of his research by the scientists. His natural science oriented research includes botany, zoology, physics, astronomy, chemistry, and meteorology, geometry and many more. He was also the teacher of the Great warrior Alexander the Great. This great philosopher died n 322 BC.
.
Sir Isaac Newton
Newton was also a man of versatile quality. He was physicist, mathematician, astronomer, alchemist, and natural philosopher in a row. His contribution in the development of science is a special one. He I best known for his explanation of Universal Gravitation and three laws of motion, and he was able to prove that the reason of both the motion of objects on Earth and of celestial bodies are controlled by the same Neutral laws. These findings could make a revolutionary change in the development of science. In mechanical science his great contribution was in optics. He could make a reflecting telescope. He also made some research on light and stars. His research on General binomial Theorem helped to be introduced today’s Calculus.
Newton was born to a farmer family but before three months of his birth his father died and then he was brought up to his maternal grandmother as her mother remarried. Newton could show his talent from his early life in The King’s School in Grantham and later he joined to the Cambridge University where he took his higher degrees.


Galileo Galilei
Galileo is considered as one of the greatest contributor to the development of Science. It is undoubtedly true that Galileo could first helped science to come out of the trend of Aristotle. He was physicist, astronomer, and philosopher and his best known contributions lie in the development of Telescope, first two laws of motion and also in Astronomy. He is also considered as the father of astronomy, father of physics and father of science.
He was born to a mathematician and musician father Vincenzo Galilei and his mother was Giulia Ammannati in Italy. He was taught form his very early life. He was the first scientist who followed the way of quantitative experiments in his research where the result was based on mathematics. He had to suffer a lot from the church for his theories.
Charles Robert Darwin
There can be debate about whether Charles Darwin (12 February 1809 – 19 April 1882) is the greatest scientist of all time but there is no doubt that he is the most controversial scientist of all time. On the Origin of Species by Means of Natural Selection (1859)- this is the book that has made Darwin immortal in the world history. This book has changed the course of science radically. It is perhaps an irony that Darwin studied theology and instead of becoming a clergy, he became naturalist.
Darwin went to different parts of the world and carried out extensive research. His theory about origin of human beings caused widespread controversy. Darwin stated that human beings have evolved through many changes and survival of the fittest was in important factor in the development of animal world. Darwin’s theory still causes passionate debate among his supporters and opponents
Albert Einstein
Einstein is the great scientist of the twentieth century and notable physicist of all time. It is told that he had learning disability in his childhood. He could not talk till he was three and could not read till he was eight. Despite such problems he later became the noble prize winner for his contribution to the Physics. His theory of relativity is considered as a revolutionary development of Physics. He got Noble Prize in Physics in 1921 for his explanation of the Photoelectric Effect and for his research in Theoretical

Thomas Edison
Edison is the great inventor who has over 1000 patents and his inventions are in various fields used in our daily life. In his early life he was thought to have a learning disability and he could not read till he was twelve and later he himself admitted that he became deaf after pulling up to a train car by his ears. He first could able to turn the attention of the world after inventing Phonograph. His one of the most popular invention is the Electric Bulb. He also developed the telegraph system. His invention of carbon telephone transmitter developed the carbon microphone which was used in the telephoned till 1980. He also became a prominent businessman and his business institution produced his inventions and marketed the products to the general people.


Alessandro Giuseppe Antonio Anastasio Volta
Volta was Italian physicist and he is best known for his contribution to the development of electric battery. This benevolent scientist is also regarded as one of the founder of the electric age. His parents sent him to the Jesuit school intending to make him a Jurist. He also taught in the University of Pavia for 25 year. After that in 1800 he could make voltaic pile which could produce steady electric current. He then worked on to develop the electric bulb. For his work in the electric development he was given a count by Napoleon. Emperor of Austria honored him naming him a professor of Philosophy at Padova. For his honor an electric unit Volt was named after him.

Saturday, 20 August 2011

chemists

chemists                                                    discovery or contribution to chemistryMendeleef    1869                                              periodic table
moseley      1912                                                modern periodic table
henry cavendish   1776                                          hydrogen
daniel rutherford  1772                                       nitrogen
joseph priestly    1774                                       oxygen
lavoisier              1777                                       sulphur
carl scheele          1774                                     chlorine
de lassone           1776                                       carbon monoxide
van helmont        1630                                       carbon dooxide
glauber              1648                                         hcl gas
j.kunckel            1716                                        ammonia
glauber              1658                                         nitric acid
j.priestly           1770                                         sulphur dioxide
lavoisier          1785                                          classified substances  1)organic2)inorganic compounds     

Wednesday, 17 August 2011

education in kerala

i met some kerala friends at mysore rie.in their state they have computer labs with broadband fecility in their schools.they are using computers for science,maths lessons.they are preparing lesson plans with ubuntu software.kerala government has given high priority for education.only 15%students are in private schools and 85%are in govt schools.in each school 200 students are minimum 1000 students maximum.
we have to learn more from them.
ravisekhar

maths and science videos

Tuesday, 16 August 2011

Sunday, 7 August 2011

buddha,einstein


" "Believe nothing, no matter where you read it, or who said it, no matter if I said it, unless it agrees with your own reason and your own common-sense." Buddha

"Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius - and a lot of courage - to move in the opposite direction." Albert Einstein

role of science


"To raise new questions, new possibilities, to regard old problems from a new angle, requires creative imagination and marks real advance in science." Albert Einstein

"There must be no barriers to freedom of inquiry. There is no place for dogma in science. The scientist is free, and must be free to ask any question, to doubt any assertion, to seek for any evidence, to correct any error." Robert Oppenheimer, 1949

Tuesday, 2 August 2011

einstein

"Everything should be made as simple as possible.but not simpler."Albert einstein
see  www.pppst.com for science and math powerpoint presentations.