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From the so-called dumb child to the wizard of Menlo Park…

It may seem difficult to believe that a child who was once dismissed from school as an unintelligent student, with a hearing impairment, later became a great inventor known throughout the world

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Behind every bulb and light we shine today is a man to whom we are indebted, Thomas Alva Edison. Yes, the man who led the world from darkness to the path of light. He made many discoveries that amazed the world. What is more, if you were to ask anyone to name the top 10 scientists in the world, there is no doubt that Edison would be one of them.

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In addition to the electric bulb, Edison patented more than a thousand inventions such as the motion picture camera, the phonograph, the electrical vote recorder, the alkaline storage battery, and sound recording. He also started a research laboratory for the first time in the world on an industrial basis. With the invention of the light bulb and direct current, he made electricity an irreplaceable thing in the world.

It may seem difficult to believe that a child who was once dismissed from school as an unintelligent student, with a hearing impairment, later became a great inventor known throughout the world. But yes, life had many twists and turns for that boy named Thomas Alva Edison.

An unintelligent student

Thomas Edison was born on February 11, 1847, in Milan, Ohio, the US. He was from an ordinary family who immigrated to America from Canada. Edison’s father, Samuel Edison, owned a wood business in Milan. Thomas Edison was the seventh son of his mother Nancy Edison and Samuel. When he was eight, the family had to move to Port Huron. It was during this time that Edison was admitted to school. But a teacher once described Edison as a ‘stupid student’ who was not good at studies.

One day, a letter was sent to Edison from school to give to his mother. Seeing tears in her eyes, Edison asked about the letter. “Your son has a lot of talent for his age.” As it turns out, there won’t be enough facilities or teachers at this school to guide him.  “It is therefore better that you teach him yourself.” Edison’s mother told him after she had read it.

From then on, Edison’s teacher was his mother. Just three months of schooling ended with that.

Edison was raised under the tutelage of his mother, who did not even receive a primary school education. Realizing her son’s strengths and weaknesses, the mother nurtured him accordingly. It was his mother who made Edison a world-renowned great and encouraged his talents.  

Edison himself once said about it like this, ‘My mother made me who I am. It was my mother who made me feel that I had a purpose in life and that I had someone with me so that I wouldn’t be disappointed.’  

The power of confidence

Edison’s parents were not in a good financial position. But still, they bought many books for him. Reading the science books among them, he was inspired to do his own experiments. But all the early experiments were failures.

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Edison with his phonograph /Pixabay

But Edison was not ready to give up his confidence and efforts. He grew up and became a world-renowned scientist as a result of great effort and hard work. The genius worked on himself by tasting failure rather than success.

Later, Edison found a piece of paper while sorting through old things in his house. Edison took it and realized that it was a letter from the school that he had given to his mother in the past. Edison cried when he read it. ‘Your son is a foolish child. We don’t want to waste time teaching him. So please do not send him to school from now on…’ were the lines of the letter.

Edison said that if his mother had read the letter like this or scolded him, he would have become an incompetent child with no confidence. If his mother had not recognized Edison’s talent and encouraged it, the world would have lost it.

>> Edison held 389 patents related to electric light and the field alone

 Edison began walking toward his dreams in 1859 at the age of 12 as a newspaper salesman on trains between Port Huron and Detroit. It was during this time that Edison lost his right ear due to an illness.  But later with the industrialization of the telegraph, he became an apprentice telegrapher in 1863 due to his interest in learning about it. This was a turning point in Edison’s life. The period when Edison realized that he could do many things. The experiments continued.

Having done many jobs again, he had also realized his inner businessman by this time. Edison received his first patent in 1869. He found that the right to consent could be exercised effortlessly in an electric vote recorder. In the same year, he also invented the duplex telegraph, which could send two messages at the same time.

Being a telegraph operator helped Edison shine in the field of telegraphy. Beating the best telegraph company of the time, the Western Union Telegraph Company, Edison invented the quadruplex telegraph, which could send four messages simultaneously over a single wire.

Later, the Western Union company paid Edison one hundred thousand dollars to acquire the rights. This was his first big reward. It was the highest amount anyone could receive for any discovery up to that time.

Then Edison invented the automatic telegraph, which recorded messages automatically through electrical transmission, but it was not a great industrial success. But he followed up this chemical discovery with the invention of the electric pen, the mimeograph, and the phonograph.

Edison invented the electric light bulb in October 1879. In 1982, New York’s Pearl Street began supplying electricity. So it was Edison who made the world think that light means a bulb. Edison also invented the kinetograph, a moving camera that could take moving pictures.

He is the one who first paved the way for filming the movies and videos that we enjoy today. Many technologies, including sound recording on film, were the result of Edison’s efforts. Many of the things we use in our daily lives today were the first form of his contribution. All of these were revolutionary discoveries that changed the course of time.

Wizard of Menlo Park

One of the most important stages in Edison’s life began in the laboratory he started in Menlo Park, New Jersey. In 1876 Edison started the first industrial research laboratory in the world. Edison, an entrepreneur and industrialist, grew up from there.

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Edison’s Menlo Park Lab. Credit: AIP Emilio Segre Visual Archives, Physics Today Collection

Many discoveries known to the world were born from here. Edison had many assistants here. As a result of their efforts, there was a torrent of patents under Edison’s name at that time.

He has received 1093 patents in the United States alone and has also received other patents from the UK, Germany, and France. Edison held 389 patents related to electric light and the field alone.

With his intelligence, self-confidence, and hard work, Edison jumped to the forefront despite all the crises and practical difficulties. But in the meantime, some disputes that arose with the inventor Nikola Tesla led to many controversies at that time in the name of the ‘current war’.

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‘You’re admired, because no one understands you’

How does a soft-spoken, late-blooming, introspective young man—once dismissed as lazy and unimaginative—go on to become one of the greatest scientific minds the world has ever known? That story, woven with personal struggles, quiet determination, and an unmatched brilliance, is one of the most inspiring in the history of science. This edition of EP Know the Scientist turns the spotlight on the legend of Albert Einstein

Joe Jacob

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A Meeting of Geniuses

In 1931, two of the most brilliant minds of the 20th century met in Hollywood. One was Albert Einstein, the theoretical physicist who had turned our understanding of the universe on its head; the other, Charlie Chaplin, a master of silent cinema who could move the world to laughter without uttering a word.

“You’re admired because everyone understands you,” Einstein said to Chaplin.

“You’re admired,” Chaplin replied, “because no one understands you.”

That exchange perfectly captured the enigma of Einstein. Though his theories baffled the masses, his influence on science, and on the world itself, was impossible to ignore.

The Face of Modern Physics

Albert Einstein’s contributions to science redefined physics. From his Special and General Theories of Relativity to his explanation of the photoelectric effect, he reshaped how we understand energy, gravity, light, and time. His famous equation, E = mc², may be the most recognized scientific formula in history—a symbol of human curiosity and intellectual might.

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Albert Einstein and Charlie Chaplin

Even today, astronomers rely on Einstein’s insights to decode gravitational waves, explain the bending of light around stars, and predict the paths of planets like Mercury. Long after his passing, Einstein continues to be a guiding force in scientific exploration.

A Curious Child

Born in 1879 in Ulm, Germany, to a middle-class Jewish family, Einstein was a quiet child. His parents worried because he spoke late. Teachers misunderstood his dreamy nature. But from a young age, Einstein was captivated by the invisible forces of the world. A simple compass given to him at age five stirred a lifelong fascination with unseen energies.

By 12, a book on Euclidean geometry filled him with awe. He called it his “sacred little geometry book,” and it gave him a glimpse of the order behind nature’s complexity.

Despite a popular myth, Einstein was not bad at math. He excelled in mathematics and physics, though he struggled with the rigid, memorization-heavy Prussian education system. Creative thinking had little space in such classrooms—and Einstein needed space to think.

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Failing to Fit, and Finding a Path

At 16, Einstein dropped out of school. He failed the entrance exam to Zurich’s prestigious Polytechnic School on his first try, performing well only in science and math. Undeterred, he studied on his own and passed the exam the following year.

After graduating in 1901, Einstein struggled to find work as a teacher. Eventually, he secured a job as a clerk at the Swiss Patent Office in Bern—a humble position that gave him time to think, scribble equations, and dream about the cosmos. It was during this period that Einstein’s revolutionary ideas took shape.

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Image: Pixabay

The Miracle Year

In 1905, while still a patent clerk, Einstein published four papers that would change the course of physics. He explained the photoelectric effect (which would win him the Nobel Prize in 1921), developed the Special Theory of Relativity, and introduced the idea of mass-energy equivalence. These ideas challenged Newtonian physics and formed the foundation of modern science.

At first, his work went unnoticed. But Max Planck, one of the leading physicists of the time, recognized Einstein’s genius. The world soon followed.

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Max Planck/ Source: Wikipedia

Fame, Flight, and Fear

By the 1910s, Einstein’s fame had spread far beyond academic circles. He was offered positions at the most prestigious universities across Europe. In 1915, he completed his General Theory of Relativity—a breathtaking explanation of gravity as the curvature of space-time.

But in 1933, as Hitler rose to power, Einstein fled Germany for the United States, renouncing his citizenship. The man dubbed the “Pope of Physics” took refuge in Princeton, New Jersey, where he would live and work for the rest of his life.

The Atom Bomb and Moral Dilemmas

Einstein’s equation E = mc² implied that immense energy could be released by splitting atoms. Though he was a lifelong pacifist, in 1939, fearing Nazi Germany’s nuclear ambitions, Einstein co-signed a letter to U.S. President Franklin D. Roosevelt urging research into atomic weapons.

Ironically, he was never part of the Manhattan Project. After World War II, horrified by the bomb’s use in Hiroshima and Nagasaki, Einstein became a leading voice against nuclear weapons.

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The Man Behind the Mind

Einstein was more than a physicist. He was a violinist, a humanist, and an outspoken critic of nationalism and racism. Though famously disheveled, his mind was razor-sharp. In 1952, he was even offered the presidency of Israel—a role he declined, saying he lacked the experience and temperament for politics.

His personal life was complex. He married twice, had children, and endured heartbreaks, illnesses, and separations. Yet his work remained a constant force—until the very end.

The Brain that Fascinated the World

When Einstein died on April 18, 1955, at the age of 76, he refused life-prolonging surgery. “I want to go when I want,” he said. But the fascination with his mind didn’t end there. The doctor who performed his autopsy, Thomas Harvey, removed Einstein’s brain—without permission. He sliced it into hundreds of pieces, preserving them for study.

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Later analyses suggested Einstein’s brain had unusual features—more folds, a larger inferior parietal lobe, and a higher ratio of glial cells. Some researchers believe these might explain his extraordinary cognitive abilities. But others warn against drawing conclusions from a brain no longer alive.

Regardless, Einstein’s mind remains a symbol of limitless human potential.

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Image: Pixabay

Legacy Eternal

Sixty-six years after his death, fragments of Einstein’s brain are still preserved in museums around the world. But his true legacy isn’t in physical remains—it’s in every scientific equation that bears his fingerprints, every telescope that bends light to measure distant stars, every classroom where young minds imagine the unimaginable.

In a world hungry for quick answers, Einstein stood for slow, deep thinking. “Imagination is more important than knowledge,” he once said. He gave us the tools to measure time and space—and the courage to wonder what lies beyond both.

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Remembering S.N. Bose, the underrated maestro in quantum physics

Rejected in Britain, celebrated by Einstein, here’s the story of S.N. Bose, the Indian physicist who formulated quantum statistics, now a bedrock theory in condensed matter physics.

Karthik Vinod

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SN Bose image credit: Wikimedia Commons. Illustration/EP

It’s 1924, and Satyendra Nath Bose, going by S.N. Bose was a young physicist teaching in Dhaka, then British India. Grappled by an epiphany, he was desperate to have his solution, fixing a logical inconsistency in Planck’s radiation law, get published. He had his eyes on the British Philosophical Magazine, since word could spread to the leading physicists of the time, most if not all in Europe. But the paper was rejected without any explanations offered. 

But he wasn’t going to give up just yet. Unrelenting, he sent another sealed envelope with his draft and this time a cover letter again, to Europe. One can imagine months later, Bose breathing out a sigh of relief when he finally got a positive response – from none other than the great man of physics himself – Albert Einstein. 

In some ways, Bose and Einstein were similar. Both had no PhDs when they wrote their treatises that brought them into limelight. And Einstein introduced E=mc2 derived from special relativity with little fanfare, so did Bose who didn’t secure a publisher with his groundbreaking work that invented quantum statistics. He produced a novel derivation of the Planck radiation law, from the first principles of quantum theory. 

This was a well-known problem that had plagued physicists since Max Planck, the father of quantum physics himself. Einstein himself had struggled time and again, to only have never resolved the problem. But Bose did, and too nonchalantly with a simple derivation from first principles grounded in quantum theory. For those who know some quantum theory, I’m referring to Bose’s profound recognition that the Maxwell-Boltzmann distribution that holds true for ideal gasses, fails for quantum particles. A technical treatment of the problem would reveal that photons, that are particles of light with the same energy and polarization, are indistinguishable from each other, as a result of the Pauli exclusion principle and Heisenberg’s uncertainty principle. 

Fascinated and moved by what he read, Einstein was magnanimous enough to have Bose’s paper translated in German and published in the journal, Zeitschrift für Physik in Germany the same year. It would be the beginning of a brief, but productive professional collaboration between the two theoretical physicists, that would just open the doors to the quantum world much wider. Fascinatingly, last July marked the 100 years since Einstein submitted Bose’s paper, “Planck’s law and the quantum hypothesis” on his behalf to Zeitschrift fur Physik. 

With the benefit of hindsight, Bose’s work was really nothing short of revolutionary for its time. However, a Nobel Committee member, the Swedish Oskar Klein – and theoretical physicist of repute – deemed it a mere advance in applied sciences, rather than a major conceptual advance. With hindsight again, it’s a known fact that Nobel Prizes are handed in for quantum jumps in technical advancements more than ever before. In fact, the 2001 Nobel Prize in Physics went to Carl Wieman, Eric Allin Cornell, and Wolfgang Ketterle for synthesizing the Bose-Einstein condensate, a prediction made actually by Einstein based on Bose’s new statistics. These condensates are created when atoms are cooled to near absolute zero temperature, thus attaining the quantum ground state. Atoms at this state possess some residual energy, or zero-point energy, marking a macroscopic phase transition much like a fourth state of matter in its own right. 

Such were the changing times that Bose’s work received much attention gradually. To Bose himself, he was fine without a Nobel, saying, “I have got all the recognition I deserve”. A modest character and gentleman, he resonates a lot with the mental image of a scientist who’s a servant to the scientific discipline itself.

BOSE INSIDE

But what’s more upsetting is that, Bose is still a bit of a stranger in India, where he was born and lived. He studied physics at the Presidency College, Calcutta under the tutelage that saw other great Indian physicists, including Jagdish Chandra Bose and Meghnad Saha. He was awarded the Padma Vibhushan, the highest civilian award by the Government of India in 1954. Institutes have been named in his honour, but despite this, his reputation has little if no mention at all in public discourse. 

To his physicists’ peers in his generation and beyond, he was recognized in scientific lexicology. Paul Dirac, the British physicist coined the name ‘bosons’ in Bose’s honor (‘bose-on’). These refer to quantum particles including photons and others with integer quantum spins, a formulation that arose only because of Bose’s invention of quantum statistics. In fact, the media popular, ‘god particle’, the Higgs boson, carries a bit of Bose as much as it does of Peter Higgs who shared the 2013 Nobel Prize in Physics with Francois Euglert for producing the hypothesis. 

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Narlikar – the rare Indian scientist who penned short stories

Jayant Narlikar has been one of the most prolific scientists, and science communicators India has ever produced. The octogenarian had died at his residence in Pune.

Karthik Vinod

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Jayant Narlikar | Photo Courtesy: Wikimedia

Jayant Narlikar passed away at his Pune residence on Tuesday. He was 86-years old, and had been diagnosed with cancer. With his demise, India lost a prolific scientist, writer, and institution builder.

In 2004, the government of India had honored Narlikar with the Padma Vibhushan, the second-highest civilian award, for his services to science and society. But that was not his first recognition from the Indian government. At the age of 26, he had received his first Padma Bhushan, in recognition for his work in cosmology, studying the universe’s large-scale structures. He helped contribute to derive Einstein’s field equations of gravity from a more general theory. That work, dubbed the Narlikar-Hoyle theory of gravity, was borne out a collaboration with Narlikar’s doctoral degree supervisor at Cambridge; Fred Hoyle, the then leading astrophysicist of his time.

Narlikar and the steady-state theory

Narlikar and Hoyle bonded over a shared skepticism towards the prevalent Big Bang hypothesis, which sought to extrapolate the universe’s ongoing expansion to its birth at some finite time in the past. However, Narlikar and Hoyle could not have been more opposed, mostly out of their own philosophical beliefs. They drew upon the works of 19th century Austrian physicist and philosopher, Ernest Mach, in rejecting a theory discussing the universe’s beginning in the absence of a reference frame. As such, Narlikar was a strong proponent of Hoyle’s steady-state model of the universe, in which the universe is infinite in extent, and indefinitely old. As such, the steady-state theorists explained away the universe’s expansion to matter being spawned into existence from this vacuum at every instant, aka a C-field.

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In the Big Bang hypothesis, an expanding universe causes matter to dilute over time. Whereas in steady-state theory, spawning matter from thin vacuum ensures that the density remains unchanged over time. Credit: Wikimedia

However, the steady-state’s predictions did not hold up in face of evidence the universe expands over time. Nor did its successive avatar, the quasi-steady state theory devised sway scientific consensus. The death knell came when evidence of the cosmic microwave background (aka the CMB) was discovered in 1964.

Despite steady-state’s failure, it provided healthy rivalry to the Big Bang from the 1940s to the 60s, providing opportunities for astronomers to compare observations to precise predictions. In the words of the Nobel laureate Steven Weinberg, “In a sense, this disagreement is a credit to the model; alone among all cosmologies, the steady state model makes such definite predictions that it can be disproved even with the limited observational evidence at our disposal.”

The Kalinga winning short-story writer

Narlikar was more than just a cosmologist, studying the large-scale structure of the universe. He also had been an acclaimed science fiction writer, with his works penned in English, Hindi, and in his vernacular, Marathi. His famous work was a short-story, Dhoomekethu (The Comet), revolving around themes of superstition, faith, rational and scientific thinking. Published in Marathi in 1976, with translations available in Hindi, the story was adapted later into a two-hour film bearing the same name. In 1985, the film aired on the state-owned television broadcasting channels, Doordarshan.

In a way, he was India’s Carl Sagan, airing episodes explaining astronomical concepts, with children being his target audience. The seventeen-episode show, Brahmand (The Universe), aired in 1994, to popular acclaim. One of his most popular books, Akashashi Jadle Nathe (Sky-Rooted Relationship), remains popular. An e-book version in Hindi is available on Goodreads, with 470 reviewers lending an average rating of 4.7 out of 5.

His efforts was honored with an international prize. In 1996, he received the much-coveted Kalinga Prize for the Popularization of Science, awarded annually in India by the United Nations Educational, Scientific and Cultural Organization (UNESCO), “in recognition of his efforts to popularize science through print and electronic media.” Narlikar had been only the second Indian at the time, after the popular science writer Jagjit Singh, to have received the award.

When Narlikar returned to India, accepting a position at the Tata Institute of Fundamental Research (TIFR), he realized that the fruits of astrophysical research did not flourish outside central institutions. Though Bengaluru had an Indian Institute of Astrophysics, Narlikar envisioned basing a research culture paralleling his time at Cambridge. Hence, the Inter-University Centre for Astronomy and Astrophysics (IUCAA) was born in 1988, and Narlikar was appointed its founding director. Arguably, his most visible legacy would have been to shape India’s astrophysical research culture through his work with the IUCAA (pronounced “eye-you-ka”).

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