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Albert Einstein (1879–1955) was born in Ulm, Germany, on March 14, 1879. His family moved to Munich shortly after his birth. As a boy, Einstein was slow to develop, which worried his parents; he did not speak until the age of four.

In school, he disliked strict discipline and rote learning. He once told a teacher that “authority should not be blindly obeyed,” prompting the teacher to remark, “You will never amount to anything.” History giggled quietly at that moment, having witnessed the power of questioning many times before. A compass, presented to young Einstein by his father, stunned him and aroused his curiosity, as its needle always pointed North. The little boy began wondering about the invisible laws governing the universe.

Later, he graduated in Switzerland and trained as a teacher of Physics and Mathematics. Because of his independent and rebellious ideas, he could not secure a teaching job. Eventually, the future genius ended up as a clerk in a patent office. This proved to be a blessing in disguise, as it afforded Einstein ample free time for his research. He obtained his doctoral degree in 1905 and began pursuing an academic career. In 1933, he renounced his German citizenship for political reasons and emigrated to America to take a position as a Professor of Theoretical Physics at Princeton.

E=Mc² is widely regarded as the most famous scientific equation in the world. Introduced by Einstein in 1905, it represents mass-energy equivalence. It reveals that even a small amount of mass can be converted into enormous energy—the theoretical foundation for nuclear power. Today, you can find this equation in unexpected places—T-shirts, coffee mugs, and cartoons—often used to convey the message, “I am smart.” Yet, it is more than just an equation; it is a whisper from nature saying: “Matter is but frozen energy, and energy a liberated form of matter.” Indeed, the solid and the radiant are simply two different moods of nature.

Relativity was the crown of Einstein’s life’s work, changing our very idea of reality. It consists of two parts:

1. Special Theory of Relativity (1905)

This theory deals with motion at a constant speed, especially near the speed of light. Its core principles are that light always travels at a fixed speed, nothing can travel faster than light, and the laws of physics are the same for everyone moving uniformly. Three strange but true consequences include:

• Time Dilation: When you travel very fast, time runs more slowly than it does for someone at rest. (A space traveller could return younger than those remaining on Earth).
• Length Contraction: Objects moving near the speed of light become shorter in the direction of motion. This implies that space is not fixed; it depends on how you move.
• Mass-Energy Equivalence: As previously noted, mass and energy are interchangeable.

2. General Theory of Relativity (1915)

This explains gravity not as a force pulling objects, as explained by classical physics, but as the curvature of space and time. Imagine space-time as a stretched rubber sheet; a heavy object like the Sun bends the sheet, and smaller objects like the Earth move along that curve. Key predictions proven experimentally include:

• Bending of Light: Light passing near a massive object bends. This was proven during the solar eclipse of 1919.
• Gravitational Time Dilation: Time runs slower near massive objects. Modern GPS data must account for this to ensure accuracy.
• Gravitational Waves: Massive movements cause ripples in space-time, which were finally detected in 2015.

Relativity predicted the existence of black holes and a dynamic universe. The realization that space itself can expand eventually led to the Big Bang theory. Philosophically, Einstein showed there is no absolute time or universal “now.” Before Einstein, space and time were merely the stage; after Einstein, they became the actors in the play.

Interestingly, Einstein received the Nobel Prize in 1921 not for Relativity, but for his theory of the Photoelectric Effect. When light rays of a specific frequency fall on certain metals, electrons are knocked out instantly, which produces an electric current. Classical Physics, according to which light has a wave form, could not explain the instant generation of current, as waves transfer energy gradually. Einstein proposed that light is not just a wave, but behaves like tiny packets of energy called quanta (later called photons). He calculated that each photon should have energy equal to ‘h’ times its frequency, where h is Planck’s constant, to knock out an electron from the metal surface instantly.  This challenged classical physics and helped birth Quantum Mechanics. His theory was later proven by the scientist Robert Millikan, and it led to technologies like solar panels, photo sensors, and digital imaging.

The Legacy of Albert Einstein

Though E=Mc² paved the way for nuclear power. It represents mass–energy equivalence and reveals that even a small amount of mass can turn into enormous energy. Einstein was never a member of the team that built the atomic bomb. However, he did write a letter to President Franklin D. Roosevelt expressing his fear that Nazi Germany might develop such a weapon. He later deeply regretted encouraging the U.S. to pursue it.

Despite being one of the most brilliant minds in history, Einstein was simple, unassuming, and humane. He was often absent-minded, his mind preoccupied with complex thoughts. While he was always gentle, he was not a traditional romantic husband or an overly attentive father. Yes, Einstein was truly living in two worlds: the real world, where his mind was absent, and the scientific world, where his mind was fully occupied.

 Many stories highlight his “ordinary man” qualities:

• Music: He was a deep lover of the violin, often playing it when he struggled with a scientific puzzle. “I live my dreams in music,” he once said.
• Socks: He famously hated wearing them, even to the White House, claiming they would “eventually develop holes.”
• The Ticket: Once, while traveling by train, he couldn’t find his ticket. Even when the inspector recognized him and said it wasn’t necessary, Einstein kept searching. He explained, “It’s okay for you, but I don’t know where I am going!”
• The Address: In Princeton, he once forgot his own home address and had to call the Institute to ask where “Einstein lived.”

The Lecture: One day, Einstein was supposed to give a lecture. His driver, who was also his acquaintance, had already heard this lecture many times. They decided to swap their roles. They swapped their coats, Einstein sat among the audience, and the driver gave the lecture. There came a difficult question, which the driver could not answer. He said, ” This is such a simple question, even my driver could answer.” Einstein stood up and answered the question.

The Dinner: Einstein was invited to dinner by a colleague. He completely forgot about it and sent an invite to the same colleague for dinner, incidentally on the same day. Finally, both prepared dinner and waited for each other.

The absentminded: Absorbed in thought, Einstein once entered a house, sat comfortably on the sofa, and started to work. The astonished occupant had to gently remind Eistein.

Mahatma Gandhi: Einstein was a great admirer of Mahatma Gandhi. He famously said that future generations would never believe that such a person had ever lived on Earth.

Einstein believed in a deterministic universe and famously disagreed with the probabilistic nature of quantum mechanics, stating, “God does not play dice with the universe.” He also initially believed the universe was static, introducing a “Cosmological Constant” to his equations to keep it that way. When Edwin Hubble proved the universe was expanding, Einstein called the constant his “biggest blunder.” Ironically, modern science has found that the universe’s expansion is accelerating, suggesting Einstein’s constant was actually correct.

Einstein’s final years were spent seeking a “Unified Field Theory” to solve all the mysteries of the universe. He did not live to see its completion. Perhaps we must wait for the birth of another dreamer like him—one who understands his famous sentiment: “Imagination is more important than knowledge.”

Jarard Thomas

15.04.26.