July 9: Johannes Kepler publishes the book
His first scientific work is known and appreciated as the book
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891 published items.
His first scientific work is known and appreciated as the book
The Valkyrie mission (in German: Walkür) was a conspiracy to assassinate German governor Adolf Hitler on July 20, 1944, at the command post of the Rastenburg district.
The United States during the Cold War affirmed its power to the socialist faction, after two successful trips to the Moon and explorers (Apollo 11 and Apollo 12 spacecra…
This horrific accident killed 35 people out of 97 people on board and ended the era of hot air balloons.
In 1994, scientists succeeded in producing a plasma of the highest temperature, up to 510 million degrees Celsius by the Tokamak Fusion reactor.
The Seikan Tunnel is a 53.85 km railway tunnel in Japan, with a length of 23.3 km underground.
Elevators are moving devices in high-rise buildings, commercial centers, and now they are installed a lot in villas, low-rise houses, specializing in moving people and g…
Christiaan Huygens was the first to discover the Titan satellite, but the name was set by another astronomer two centuries later.
In 1936, the world's first 5m diameter glass lens was successfully built and shipped by train from Corning, New York to California for Hale telescope installation. Palom…
Comet Halley, officially named 1P / Halley, a comet named after British astrophysicist Edmund Halley, is a comet that can be seen every 75 to 76 years. It is the most fa…
The Eiffel Tower is a steel structure located on the Champ de Mars park, next to the Seine, Paris. Originally named Tower 300 meters, works by Gustave Eiffel and colleag…
The small western island of Canada is not as peaceful as its appearance but contains many equally scary events
On December 14, 1911, the Norwegian expedition led by Roald Amundsen crossed the mist, cold with the cold wind and plugged the Norwegian flag onto the Antarctic land.
The F-35 Lightning II was developed from an X-35 aircraft under the Joint Strike Fighter (JSF) project, a single-seat, capable, invisibility, multi-role fighter. perform…
Unity was assembled with Zarya that was launched into space on November 20, 1998 before.