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Wednesday 21 October 2015

Why don’t we feel the Earth’s rotation?

The earth rotates around its axis and everything that is on its surface rotates along with it. Moreover, the atmosphere around you has the same movement and we also spin with it. So why can’t we feel anything ?




First of all, in order for us to perceive any movement, we need a point of reference that is fixed and/or external to the moving body, which makes it possible to see the changes of position in space. For example, when in a moving car, we can clearly see the movement through the windows, which makes us feel like we are moving. However, when flying in an airplane, if we close the windows so we can’t see the clouds moving outside, we do not feel like we are moving at all.

The same thing happens to us, traveling at 465 meters per second (or a little less if you’re located closer to one of the poles) on the Earth’s surface; without looking at any reference points, we can’t notice, and therefore feel, any movement. In order to perceive the movement of the Earth, you have to glance at sun or the stars, for example.

Observing from the Earth, however, the sun is the one that seems to move, clearly seen during the sunrise and sunset. When watching a time-lapse of the night sky, the stars are also the ones that seem to move compared to us. In fact, they are the fixed reference points; it is the Earth’s rotation which gives us the impression that they move. So, from down here, it’s like the sun and the stars were the ones moving and we are the ones who stay still, when in reality it’s the exact opposite.



03:01 - By Unknown 0

Friday 16 October 2015

Important Clarification about Election Commissioner(s) of India

As many of our friends have been wondering about the random names of Election Commissioners of India, here we will try to throw some light on this. Before going into details, let's start with basics....
What is the Election Commission?
The Election Commission is India's supreme Constitutional authority for conducting elections to Parliament and the state legislatures and also, the offices of the President and Vice-President.
How many Election Commissioners are there in India ?
Until the year 1989, the Election Commission was a single member body. That means, there was only ONE election commissioner. But later two additional Election Commissioners were added. So, at present there are Three Election Commissioners (One Chief Election Commissioner and Two Election Commissioners).

Chief Election Commissioner (Head) 

  • Nasim Zaidi. He assumed the charge of office of the chief election commissioner with effect from 19th April 2015. He was the 20th Chief Election Commissioner

Election Commissioners (Assistants)

Achal Kumar Jyothi
Achal Kumar Jyoti appointed as the Election Commissioner on 7th May 2015.
 
Om Prakash Rawat / O. P. Rawat
Om Prakash Rawat appointed as an Election Commissioner on 14th August 2015



How to answer if a Question based on Election Commissioner Asked in Exam ?

Check the given options. If there is only one name from the above three, that will be the answer. If there are more than One among the above, then check for the below options.
  • Who is the Chief Election Commissioner of India ?
    • Nasim Zaidi
  • Who is the 20th Chief Election Commissioner of India ?
    • Nasim Zaidi
  • Name the Retired IAS Officer from Uttar Pradesh who was appointed as Election Commissioner of India ?
    • Nasim Zaidi
  • Name the Recently retired Election Commissioner ?
    • H.S.Brahma on 19th April 2015
  • Name the election commissioner who was appointed on 7th May 2015 ?
    • Achal Kumar Jyothi
  • Name the retired IAS Officer from Gujarat who was appointed as Election Commissioner ?
    • Achal Kumar Jyoti
  • Name the election commissioner who was appointed on 14th August 2015 ?
    • Om Prakash Rawat
  • Name the retired IAS Officer from Madhya Pradesh who was appointed as Election Commissioner ?
    • Om Prakash Rawat
  • Name the newly Appointed Election Commissioner ?
    •  Om Prakash Rawat
06:51 - By Unknown 0

Thursday 8 October 2015

Simple Tricks to Remember Nobel Physiology / Medicine 2015 Awardees

As many of our friends here have been worrying to remember the new names of Nobel Physiology / Medicine 2015 Award Winners, here we are sharing some simple tricks to remember these names. These tricks are shared by our friends Srinivas S Pai, Sumit Kapoor and Milky. Before learning these tricks, lets have a look at the winners' details of Nobel Physiology / Medicine for the year 2015.


Nobel Physiology / Medicine 2015 Awardees

  • Youyou Tu

    • From : China
    • Currently working at :  China Academy of Traditional Chinese Medicine, Beijing, China
    • Prize Share : 1/2
    • She won this award for : her discoveries concerning a novel therapy against Malaria
  • Satoshi ÅŒmura

    • From : Japan
    • Current working at : Kitasato University, Tokyo, Japan
    • Prize Share : 1/4
    • He won this award for : His discoveries concerning a novel therapy against infections caused by roundworm parasites
  • William C. Campbell

    • From : Ireland
    • Currently working at : Drew University, Madison, NJ, USA
    • Prize Share : 1/4
    • He won this award for : His discoveries concerning a novel therapy against infections caused by roundworm parasites
Now let's have a look at the tricks to remember these names.

Trick shared by Srini
"A Chinese Youth Sat with a Japanese for an Irish Medical Camp"

  • You-Youyo Tu from China
  • Sat-Satoshi Omura from Japan
  • Medical-Medical Nobel
  • Camp-William Campbell from Ireland
Trick shared by Sumit Kapoor
"Santosh you champ"

  • Santosh - Satoshi ÅŒmura
  • You - Youyou Tu
  • Champ - William C. Campbell
Trick shared by Milky
"You Sat Camp for a medical field"

  • You -Youyou Tu
  • Sat - Satoshi Omura
  • Camp -William Campbell
  • for Medical field
00:58 - By Unknown 0

Simple Tricks to Remember Nobel Winners in Physics 2015

Many of our friends have came up with some wonderful tricks to remember the Winners' Names of Nobel Prize in Physics 2015. Luckily we don't have to struggle in remembering these names as one of these names (McDonalds) is somehow familiar to us. Now let's have a look at the winner's details before learning the tricks shared by our friends.

Nobel Physics 2015 Award Winners

Takaaki Kajita
  • From : Japan
  • Currently working at :  University of Tokyo, Kashiwa, Japan
  • Prize Share : 1/2
  • He won this award for : His discovery of neutrino oscillations, which shows that neutrinos have mass
 Arthur B. McDonald
  • From : Canada
  • Currently working at :  Queen's University, Kingston, Canada
  • Prize Share : 1/2
  • He won this award for : His discovery of neutrino oscillations, which shows that neutrinos have mass
Now let's have a look at the tricks to remember these names.
Trick shared by Sumit Kapoor
After Physics tuition me and my Friend went for McDonald to eat Takaaki (sound like allu ki tikki)
  • Physics - Nobel Prize in Physics
  • McDonald - Arthur B. McDonald 
  • Takaaki - Takaaki Kajita
Trick Shared by Srini
McDonald's in Takeshi's Castle
  • McDonald- Arthur McDonald
  • Takeshi - Takaaki Kajita 
Trick Shared by Alex Christo
During my Physics graduation the Japanese friend Kajita took me to a Canadian McDonald shop 

  • Physics - Nobel Prize in Physics
  • Japanese friend Kajita -Takaaki Kajita From Japan
  • Canadian McDonald shop - Arthur B. McDonald from Canada
00:57 - By Unknown 0

Meet the Winners of Nobel Prize in Chemistry 2015

The winners names of Nobel Prize in Chemistry for the year 2015 announced. The Nobel was awarded “for mechanistic studies of DNA repair”.  Three scientists, Tomas Lindahl, Paul Modrich and Aziz Sancar were jointly honored with this award. Mr. Lindahl is from the Francis Crick Institute, while Mr.s Modrich is from the Howard Hughes Medical Institute and Duke University School of Medicine. Mr. Sancar is from the University of North Carolina.

Quick Facts about Nobel Chemistry Prize 2015 Awardees

Tomas Lindahl

  • From :  Sweden
  • Currently working at :   Francis Crick Institute, Hertfordshire, United Kingdom, Clare Hall Laboratory, Hertfordshire, United Kingdom
  • Prize Share : 1/3
  • He won this award for :  mechanistic studies of DNA repair

Paul Modrich

  • From :  USA
  • Currently working at :  Howard Hughes Medical Institute, Durham, NC, USA, Duke University School of Medicine, Durham, NC, USA
  • Prize Share : 1/3
  • He won this award for :  mechanistic studies of DNA repair

Aziz Sancar

  • From :  Turkey
  • Currently working at :  University of North Carolina, Chapel Hill, NC, USA
  • Prize Share : 1/3
  • He won this award for :  mechanistic studies of DNA repair
This is the  Third of this week’s three top science prizes. The Academy has already announced the winners of Nobel Prize in Physiology / Medicine and Nobel Prize for Physics for the year 2015.
00:56 - By Unknown 0

Meet the Winners of Nobel Prize in Physics 2015

Friends, The Royal Swedish Academy of Sciences announced the Winners of Nobel Prize in Physics for the year 2015 today. This year this award went to  Japanese and Canadian scientists for their work to reveal how neutrinos – elusive subatomic particles – change identities or ‘flavours’, and expand our understanding of the innermost workings of matter and the universe

Takaaki Kajita of Japan and Arthur McDonald of Canada win 2015 Nobel prize in physics. 

The academy said the two men won the prize for their contributions to experiments demonstrating that neutrinos change identities.

Quick Facts about Nobel Physics 2015 Awardees

Takaaki Kajita
  • From : Japan
  • Currently working at :  University of Tokyo, Kashiwa, Japan
  • Prize Share : 1/2
  • He won this award for : His discovery of neutrino oscillations, which shows that neutrinos have mass
 Arthur B. McDonald

  • From : Canada
  • Currently working at :  Queen's University, Kingston, Canada
  • Prize Share : 1/2
  • He won this award for : His discovery of neutrino oscillations, which shows that neutrinos have mass
00:54 - By Unknown 0

Meet the Winners of Nobel Prize in Physiology / Medicine 2015

Friends, the Nobel Season for the year 2015 started today (5th October) with the announcement of the Winners for Physiology / Medicine for the 106th time. Three scientists from Japan, China and Ireland whose discoveries led to the development of potent new drugs against parasitic diseases including malaria and elephantiasis won the Nobel Prize for Medicine for the year 2015.

This year's Nobel Prize in Physiology or Medicine 2015 was divided, one half to Youyou Tu (Left)  "for her discoveries concerning a novel therapy against Malaria" and the other half jointly to William C. Campbell (Right) and Satoshi ÅŒmura (Middle) "for their discoveries concerning a novel therapy against infections caused by roundworm parasites" and the other half .

Quick Facts about Nobel Physiology / Medicine 2015 Awardees

  • Youyou Tu

    • From : China
    • Currently working at :  China Academy of Traditional Chinese Medicine, Beijing, China
    • Prize Share : 1/2
    • She won this award for : her discoveries concerning a novel therapy against Malaria
  • Satoshi ÅŒmura

    • From : Japan
    • Current working at : Kitasato University, Tokyo, Japan
    • Prize Share : 1/4
    • He won this award for : His discoveries concerning a novel therapy against infections caused by roundworm parasites
  • William C. Campbell

    • From : Ireland
    • Currently working at : Drew University, Madison, NJ, USA
    • Prize Share : 1/4
    • He won this award for : His discoveries concerning a novel therapy against infections caused by roundworm parasites
00:53 - By Unknown 0

Meet the Winners of Nobel prize in Medicine 2014

The Nobel Prize in Physiology / Medicine for the year 2014 has announced today. Three neuroscientists have honored with this award. They are British-American John O'Keefe and Norwegian couple May-Britt and Edvard I Moser, for their discoveries of cells that constitute a positioning system in the brain. The Nobel Prize in Physiology or Medicine administered by the Nobel Foundation, is awarded once a year for outstanding discoveries in the fields of life sciences and medicine. This award was established in the year 1895 by Swedish chemist Alfred Nobel, the inventor of dynamite.
One of the winners of Nobel Prize in Medicine 2014, John O'Keefe is an American British neuroscientist and a professor at the Institute of Cognitive Neuroscience and the Department of Anatomy (University College London). The winners May-Britt Moser and Edvard I Moser are husband and wife. They both are neuroscientists and Founding Directors of The Kavli Institute for Systems Neuroscience and Centre for the Biology of Memory (KI/CBM) at the Norwegian University of Science and Technology (NTNU) in Trondheim, Norway.
They have discovered a positioning system, an "inner GPS" in the brain that makes it possible to orient ourselves in space, demonstrating a cellular basis for higher cognitive function. Initiated by John O' Keefe in 1971, by discovering the first component of this positioning system. He found that a type of nerve cell in an area of the brain called the hippocampus that was always activated when a rat was at a certain place in a room. Other nerve cells were activated when the rat was at other places. O'Keefe concluded that these "place cells" formed a map of the room. More than three decades later, in 2005, May‐Britt and Edvard Moser discovered another key component of the brain's positioning system. They identified another type of nerve cell, which they called "grid cells", that generate a coordinate system and allow for precise positioning and pathfinding. Their subsequent research showed how place and grid cells make it possible to determine position and to navigate.

This research has solved a problem that has occupied philosophers and scientists for centuries "how does the brain create a map of the space surrounding us and how can we navigate our way through a complex environment ?" The physics, chemistry, literature and peace awards will be announced later this week. The economics prize will be announced next Monday.
00:51 - By Unknown 0

Meet the Winners of Nobel prize in Chemistry 2014

Two American Scientists and one German Scientist have won the Nobel Prize in Chemistry for the year 2014. The winners are Eric Betzig, Stefan W. Hell and William E. Moerner, the Nobel committee in Sweden announced today. They won this award for smashing the size barrier in optical microscopes, allowing researchers to see individual molecules inside living cells.
Eric Betzig is working at the Howard Hughes Medfical Institute in Ashburn, Virginia. Hell is director at the Max Planck Institute for Biophysical Chemistry in Goettingen, Germany and E. Moerner is a professor at Stanford University in California. "Due to their achievements the optical microscope can now peer into the nanoworld," the Royal Swedish Academy of Sciences said in awarding the 8 million crown ($1.1 million) prize.

Last year’s Noble Chemistry award went to a group of three scientists of United States  Martin Karplus , Michael Levitt  and Arieh Warshel for devising computer simulations that are used to understand and predict chemical processes (Check details here). Chemistry was the third of this year's Nobel prizes. The Nobel prizes in Medicine and Physics 2014 were already announced. The Nobel Prizes 2014 for literature and economic sciences will be announced later this week, as will the Nobel Peace Prize.
00:51 - By Unknown 0

Meet the Winners of Nobel Peace Prize 2014

History was made today when an Indian and a Pakistani national jointly shared the Nobel Peace Prize for the year 2014. The Nobel Peace Prize for the year 2014 has been jointly awarded to Indian rights activist Kailash Satyarthy and Pakistan's Malala Yusafzai.
Kailash Satyarthi is an Indian children's rights activist. He runs Bachpan Bachao Andolan Group in New Delhi, which has freed over 80,000 children from various forms of servitude and helped in successful re-integration, rehabilitation and education. He has been active in the Indian movement against child labour since the 1990s.
Malala Yousafzai is a Pakistani school pupil, education activist. She was shot shot at by the Taliban in 2012 for protesting against curbs on girls attending school in her town in the Swat Valley.
They are honored with this award for "their struggle against the suppression of children and young people and for the right of all children to education". There were a record 278 nominations this year, 19 more than ever before – including US whistleblowers Edward Snowden and Chelsea Manning, Russian President Vladimir Putin, and Pope Francis. Also on the list of nominees was an anti-war clause in the Japanese constitution and the International Space Station partnership. The Nobel committee said it “regards it as an important point for a Hindu and a Muslim, an Indian and a Pakistani, to join in a common struggle for education and against extremism,”.

Highlights
  • An Indian wins the coveted Nobel Prize for peace after 35 years.
  • Satyarthy is the second Indian after Mother Teresa, to have been awarded the Nobel Peace Prize.
  • Malala at 17 years is the youngest ever winner of the prestigious peace award. 
  • She is Pakistan's first Nobel laureate.

Last year The Organization for the Prohibition of Chemical Weapons (OPCW) has been awarded the Nobel Peace Prize for the year 2013 for its extensive efforts to eliminate chemical weapons. Peace Prize was the fifth of this year's Nobel prizes. The Nobel prizes in Medicine , Physics,  Chemistry  and Literature 2014 were already announced. The Nobel Prizes 2014 for economic sciences will be announced later this week.
00:50 - By Unknown 0

Meet the Winner of Nobel prize in Literature 2014

A French novelist was honored with this year's Nobel Prize in Literature Award. Patrick Modiano, whose work focuses on the Nazi occupation and its effect on his country, was awarded the Nobel Prize in literature 2014 today (9th October 2014). The Swedish committee praised the 69-year-old French writer for “the art of memory with which he has evoked the most ungraspable human destinies and uncovered the life-world of the occupation.” The award - which is presented to a living writer - is worth eight million kronor (£691,000).
Patrick Modiano previously won the Austrian State Prize for European Literature in 2012 and the Prix mondial Cino Del Duca from the Institut de France for his lifetime achievement in 2010. His novel "Missing Person" won the prestigious Prix Goncourt in 1978
Last year’s Noble Literature award went to Canadian short story Writer Alice Munro for her short stories that focus on the frailties of the human condition. Literature was the fourth of this year's Nobel prizes. The Nobel prizes in Medicine , Physics and Chemistry 2014 were already announced. The Nobel Prizes 2014 for economic sciences and the Nobel Peace Prize will be announced later this week.

00:49 - By Unknown 0

Meet the Winners of Nobel prize in Physics 2014

Two Japanese scientists and an US scientist have won the prestigious Nobel Prize in Physics for the year 2014. Isamu Akasaki and Hiroshi Amano from Japan and Shuji Nakamura from United States were honored with the Nobel Physics Prize 2014 for the invention of blue light-emitting diodes a new energy efficient and environment-friendly light source. Prof Shuji Nakamura is a professor at the Materials Department of the College of Engineering, University of California, Santa Barbara (UCSB), Prof Isamu Akasaki  is a professor at Meijo University and distinguished professor at Nagoya University and Prof. Hiroshi Amano is also a professor at Nagoya University. 
The awarding committee said the trio's work is in keeping with the spirit of Alfred Nobel, the founder of the prize, because LED lights save on energy, last long and are environmentally-friendly because they don't contain mercury. For 30 years, these scientists had tried to create the blue diode. Last year’s Noble Physics award went to Britain’s Peter Higgs and Belgian colleague Francois Englert for helping to explain how matter formed after the Big Bang (Check details from here). The Nobel prizes in Medicine 2014   was already announced (check details here). The Nobel Prizes 2014 for chemistry, literature and economic sciences will be announced later this week, as will the Nobel Peace Prize.
00:48 - By Unknown 0

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