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Stockholm, Swedennobelprize.orgJoined September 2008

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#OnThisDay in 1997, physics laureate Arthur Ashkin published the review paper 'Optical trapping and manipulation of neutral particles using lasers'. The paper looked at the applications of his light trap, which he developed in the 70s. Read the paper: bit.ly/2VCANyo
1. Small transparent spheres are set in motion when they are illuminated with laser light. Their speed corresponds to Ashkin's theoretical estimation. 
2 An unexpected event was the gradient force that pushes the spheres towards the centre of the beam where the light is most intense. This is because the intensity of the beam decreases outwards, and the sum of all the forces pushing the spheres.
3. Ashkin makes the spheres levitate by pointing the laser beams upwards. The radiation pressure counteracts gravity.
4. The laser beam is focused with a lens. The light captures particles and even live bacteria and cells in these optical tweezers.
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"One of the great things about science is a lot of it is about thinking, you’re thinking about questions. You can do this any time, any place." Read our interview with medicine laureate Ardem Patapoutian () who loves hiking: bit.ly/34ob8C8
Ardem Patapoutian wearing a grey baseball cap, orange shirt and holding walking sticks, hikes on a mountainous path. In the background another hiker follows him.
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We live in a world of interconnected crises. Disinformation in today’s world is undermining trust in scientists and democracy itself. Join us at the #NobelPrizeSummit from 24–26 May for a constructive dialogue on combating disinformation. Register here: bit.ly/43IVJpE
A graphic image reading: "TRUTH, TRUST AND HOPE. Nobel Prize Summit. 24-26 May 2023. nobelprize.org/summit"
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“I was captured for life by chemistry and by crystals.” #NobelPrize laureate Dorothy Crowfoot Hodgkin was one of the most outstanding X-ray crystallographers of her time. She determined the structure of penicillin and vitamin B12, and the 3D structure of insulin.
Dorothy Crowfoot Hodgkin looking at a molecular model. She is wearing a dark blue cardigan and a blouse.
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"I did not seek solitude. I found it. And from my solitude I think, work, and live – and I believe that I write and speak with almost infinite composure and resignation." 1989 literature laureate Camilo José Cela in his wise Nobel Prize lecture: bit.ly/34GwINW
Camilo José Cela receiving his Nobel Prize diploma from the Swedish king.
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"I was delighted too when I heard about the Nobel Prize, thinking as you did that my bongo playing was at last recognised." Physics laureate Richard Feynman was known for being a brilliant mind, a great explainer and - who can forget - an enthusiastic bongo player.
A black and white photograph of Richard Feynman looking directly into the camera. He is smiling and he is resting his chin against his left hand.
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Check out this photo of physics laureate Richard Feynman on the dance floor after the Nobel Prize banquet in December 1965. Feynman was awarded the physics prize for his contributions to creating new quantum electrodynamics by introducing Feynman diagrams.
A black and white photograph of Gweneth Howarth (left) and Richard Feynman dancing. Howarth is smiling at the camera and Feynman is making a face.
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Literature laureate Camilo José Cela, at his home in Palma de Mallorca, Balearic Islands, Spain on 15 December 1961. Cela was awarded the 1989 literature prize "for a rich and intensive prose, which with restrained compassion forms a challenging vision of man's vulnerability."
A black and white photograph of Camilo José Cela sitting in a chair. The chair is in the corner of a room beside a wall and bookshelf. He has his feet propped up on a table and is looking at some papers. The bookshelf is full of books.
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Today would have marked the 105th birthday of legendary physicist, science communicator and #NobelPrize laureate Richard Feynman. Feynman was awarded the 1965 Nobel Prize in Physics for his work on quantum electrodynamics, including the introduction of the Feynman diagram.
A black and white photograph of Richard Feynman looking directly into the camera.
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This image taken by was only possible thanks to physics laureates George Smith and Willard Boyle who invented the CCD sensor - which allowed us to capture light electronically instead of on film. Photo: The Hubble Space Telescope's image of the star V838 Monocerotis.
Space image take by the Hubble Space Telescope. On the image you see the star V838 Monocerotis (V838 Mon), that reveals dramatic changes in the illumination of surrounding dusty cloud structures.
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#OTD in 1933, Ernest Hemingway's books were burnt as a monument of modern decadence in the bonfire in Berlin. That was a major proof of the writer's significance and a step toward world fame. Read the full story 'A case of identity': bit.ly/2FG6Tm6
Black and white photo of Ernest Hemingway writing on his typewriter seated by a desk.
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Amartya Sen's bicycle played a key role in his research on the differences between baby boys and girls. After his assistant got bit by the children when weighing them, Sen decided to bicycle through the countryside of West Bengal, weighing the children himself.
Amartya Sen wearing a blue shirt riding a bike with a basket. There are green trees in the background.
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Vitamin B12 has the most complex structure of all vitamins. It was elucidated by Nobel Prize laureate and crystallography pioneer Dorothy Crowfoot Hodgkin. Image: Detail from a model of the crystal structure of vitamin B12
Detail from a model of the crystal structure of vitamin B12.
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"Here I must make a confession. I was led to this decision because I do not like either mathematics or statistics. I began my career as a protozoologist. I like to see things, not calculate probabilities." - André Lwoff awarded the 1965 medicine prize
Scientific black and white image of transmission electron micrograph of multiple bacteriophages attached to a bacterial cell wall; the magnification is approximately 200,000.
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Take a look at some photographs of literature laureate Rabindranath Tagore on the anniversary of his 162nd birthday. #Tagore162
A black and white photograph of Rabindranath Tagore standing with Albert Einstein.
A black and white photograph of Rabindranath Tagore walking up a ramp.
A black and white photograph of Rabindranath Tagore (right) sitting with Mahatma Gandhi (left).
A sepia photo of Tagore in a car.
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Sidney Altman received the Nobel Prize in Chemistry for discovering that RNA could function as an enzyme, facilitating body reactions. The discovery was a surprise and caused many textbook chapters to be revised. Today, RNA molecules that act this way are called ribozymes.
A black and white photograph of Sidney Altman. He is looking directly into the camera and is wearing a suit and tie.
Examples of different types of ribozyme structures.
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"I slept and dreamt that life was joy. I awoke and saw that life was service. I acted and behold, service was joy." Literature laureate Rabindranath Tagore dedicated his life to poetry, art and music, composing the Indian national anthem and the national anthem of Bangladesh.
An illustration of Rabindranath Tagore sitting holding a book. Credit: Bengali Wikipedia 10th Anniversary Celebration Jadavpur University Campus. Cherishsantosh via Wikimedia Commons.
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We're celebrating the anniversary of the birth of a true great: Rabindranath Tagore, who was born #OnThisDay in 1861 in Calcutta, India. The first non-European literature laureate, he was awarded the #NobelPrize "because of his profoundly sensitive, fresh and beautiful verse..."
A black and white photograph of Rabindranath Tagore looking directly into the camera.
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Tomorrow marks the 162nd anniversary of Rabindranath Tagore's birthday. We remember the poet by sharing one of his most famous poems, "Gitanjali 35". Stay tuned for more information about Tagore tomorrow. #NobelPrize
A photo of Tagore
Text reading:

Where the mind is without fear and the head is held high;
Where knowledge is free;
Where the world has not been broken up into fragments by narrow domestic walls;
Text reading:

Where words come out from the depth of truth;
Where tireless striving stretches its arms towards perfection;
Where the clear stream of reason has not lost its way into the dreary desert sand of dead habit;
Text reading:

Where the mind is led forward by thee into ever-widening thought and action
Into that heaven of freedom, my Father, let my country awake.
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"The excitement of learning separates youth from old age. As long as you're learning, you're not old." - Rosalyn Yalow was a Nobel Prize-awarded nuclear physicist who revolutionised the medical world by developing radioimmunoassay. In 2011, she passed away aged 89.
A black and white photo of Rosalyn Yalow next a quote that reads "As long as you're not learning you're not old."
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“A lot of advances in science build on decades of curiosity-driven experimentation by people that just have a passion for understanding nature. That is the story of CRISPR.” - Chemistry laureate Jennifer Doudna of
Jennifer Doudna, a white woman with blonde hair, stands in a lab facing the camera wearing white lab coat.
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"Jana Gana Mana" (Bengali: [ɟənə gəɳə mənə]) is the national anthem of India, originally composed in Bengali by poet Rabindranath Tagore, who was awarded the #NobelPrize in Literature in 1913. Pictured: An English translation of Jana Gana Mana by Tagore
A picture of a page with the English translation of Jana Gana Mana by Tagore
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“The most enjoyable part of science is doing it. It is sometimes very hard, sometimes very frustrating but extremely rewarding when you suddenly understand something.” Kip Thorne was one of the pioneering scientists who believed that gravitational waves could be detected.
Kip Thorne wearing jeans and a leather jacket stands in front of a colourful picture of the universe.
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1909 literature laureate Selma Lagerlöf (left) in conversation with 1930 physics laureate Chandrasekhara Venkata Raman (right) and his wife Lokasundari Ammal (middle). This picture was taken in connection with the Nobel Prize festivities in December 1930.
A black and white photo of a seated crowd of people. In the front row Selma Lagerlöf wearing black, leans forward to speak to Chandrasekhara Venkata Raman dressed in black with a white turban. In the middle of them is Lokasundari Ammal dressed in a sari.
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Remembering the scientist who succeeded in extracting vitamin A from cod-liver oil and determined its composition - Paul Karrer. Vitamin A was the first vitamin to undergo a mapping of its structure. Karrer also determined the structure of vitamin B2: bit.ly/3b8yRUm
Vitamin A molecule.
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Imagine being named by literature laureate Rabindranath Tagore, that is what happened to Amartya Sen. Tagore suggested Sen’s unusual first name to his mother. 'Amartya' means immortal (Bengali অমর্ত্য ômorto, lit. "immortal"). Read Sen's article on Tagore: bit.ly/2HKLdrt
Amartya Sen is pictured in his home in Cambridge in front of two photographs of Rabindranath Tagore and his grandfather Kshitimohan Sen with Mahatma Gandhi in 1941 and a map of the Trinity grounds in Cambridge.
Photo of Rabindranath Tagore reading for a group of people.
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On World Press Freedom Day we speak to , Indian investigative journalist, and speaker at this year’s #NobelPrizeSummit, on what journalists and media owners can do to help restore trust in news. Read the interview and register for the event:
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Peace laureate Dmitry Muratov believes journalists have an important role in society. He received the 2021 Nobel Peace Prize for his efforts to safeguard freedom of expression, which promotes democracy and lasting peace. Read his full Nobel Prize lecture: bit.ly/3IEeH6x
A photograph of Dmitry Muratov looking directly at the camera next to a blue block. White text on the blue block reads: "We are journalists, and our mission is clear - to distinguish between facts and fiction."
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