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Hermann Oberth

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Hermann Julius Oberth was a physicist and a pioneer of rocketry.

Oberth Hermann rocket scientist
Oberth Hermann rocket scientist

Born in 1894 in Nagyszeben, he was of Transylvanian Saxon descent. His early life was shaped by the science fiction novels of Jules Verne. These books inspired him to build his first model rocket at age 14. He even independently discovered the concept of the multistage rocket. This design uses different sections that drop away during flight to save weight. While his ideas were revolutionary, he often lacked the money and tools to build them. His work eventually helped turn the dream of space travel into a scientific reality.

Oberth's journey into science was not a straight path.

Hermann Oberth in his early years
Hermann Oberth in his early years

He began studying medicine in Munich in 1912. However, World War I forced him into the Imperial German Army. He served on the Eastern Front and later in a medical unit in Transylvania. During his spare time in the hospital, he studied weightlessness and resumed his rocket designs. In 1917, he even proposed a missile design using liquid propellant to the Prussian Minister of War. After the war, he moved to Germany to study physics at the University of Göttingen.

Academic life provided significant challenges for Oberth. In 1922, a university rejected his doctoral dissertation on rocket science. They labeled his ideas as "utopian," meaning they thought they were impossible fantasies. Oberth did not let this stop him. He successfully defended his dissertation at the University of Cluj in Romania in 1923. He then published his 92-page work, "The Rocket into Planetary Space." In 1929, he released a much larger, 429-page book titled "Ways to Spaceflight." This second book became known as the "Bible of scientific astronautics."

Oberth was a dedicated mentor to many future scientists.

Oberth, von Braun, etc. 1930 VFR german rocket society
Oberth, von Braun, etc. 1930 VFR german rocket society

He joined the Verein für Raumschiffahrt, or the Spaceflight Society, in 1927. There, he guided amateur enthusiasts like Wernher von Braun. In 1929, Oberth conducted a static firing of his first liquid-fueled rocket motor. He named this engine the "Kegeldüse." An 18-year-old von Braun helped him with this experiment. This connection was vital, as von Braun later engineered the Saturn V rockets that landed humans on the Moon in 1969.

Oberth-von Braun
Oberth-von Braun

Beyond pure research, Oberth helped popularize spaceflight through media. In 1928 and 1929, he served as a scientific advisor for the film "Woman in the Moon." He designed the model for the rocket used in the movie. This work helped the public imagine the reality of space exploration. He also saw the impact of experimental flight through others. His student Max Valier worked with Fritz von Opel on the Opel-RAK program. This program featured the world's first rocket-powered plane, the Opel RAK.1, which flew on September 30, 1929.

Opel RAK1 2
Opel RAK1 2

In his writings, Oberth laid out specific scientific premises for the future. He believed that machines could be built to fly above the Earth's atmosphere. He argued these machines could reach speeds high enough to escape Earth's gravity. He even suggested that humans could ride in these machines without health problems.

H.Oberth Modell-B
H.Oberth Modell-B

His books detailed complex ideas like space telescopes and space stations. He calculated that space stations could orbit between 700 and 1,200 kilometers above the ground. He also wrote about the physics of traveling to the Moon, Mars, Venus, and even comets. His theories were later proven right by the launch of Sputnik in 1957.

One of Oberth's most ambitious ideas involved the use of "space mirrors."

H.Oberth Modell-B
H.Oberth Modell-B

He proposed building massive mirrors in Earth's orbit. These mirrors would be between 100 and 300 kilometers in diameter. They would consist of a grid of many small, adjustable parts. These mirrors could focus sunlight on specific areas of the planet. Oberth believed this could help control the weather or create more living space for people. While this technology is still being researched, it shows his vision for a multiplanetary humanity. He looked far beyond the Earth, seeing a future where humans lived among the stars.

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🖼️ Images & Media (8)
File:Hermann Oberth in his early years.jpg
Hermann Oberth in his early years.jpg
File:Oberth Hermann rocket scientist.jpg
Oberth Hermann rocket scientist.jpg
File:Oberth, von Braun, etc. 1930 VFR german rocket society.jpg
Oberth, von Braun, etc. 1930 VFR german...
File:Opel RAK1 2.jpg
Opel RAK1 2.jpg
File:H.Oberth Modell-B.jpeg
H.Oberth Modell-B.jpeg
File:Officials of the Army Ballistic Missile Agency (16316242630).jpg
Officials of the Army Ballistic Missile...
File:Oberth-von Braun.jpg
Oberth-von Braun.jpg
File:Ocenasek A Hermann Oberth.png
Ocenasek A Hermann Oberth.png
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