Suchergebnisse
Suchergebnisse:
Vor 20 Stunden · Beryllium is a chemical element; it has symbol Be and atomic number 4. It is a steel-gray, strong, lightweight and brittle alkaline earth metal. It is a divalent element that occurs naturally only in combination with other elements to form minerals. Gemstones high in beryllium include beryl ( aquamarine, emerald, red beryl) and chrysoberyl.
Vor 20 Stunden · An aerial battle employing dirigibles with cannons, as depicted in En L'An 2000, a series of postcards printed between 1899 and 1910. The first flying experimental planes were between 1886 and 1910. This is a list of fictional stories that, when composed, were set in the future, but the future they predicted is now present or past.
Vor 20 Stunden · Aided by the technological innovations of radio and phonograph records, ragtime, jazz, blues, and swing also became popular overseas, and the 1920s became known as the Jazz Age. The early 20th century also saw the creation of the first African-American Broadway shows , films such as King Vidor 's Hallelujah! , and operas such as George Gershwin 's Porgy and Bess .
Vor 20 Stunden · In 1887, Emile Berliner: Group of answer choices created the 78 rpm record. worked for Thomas Edison. built Edison's first phonograph. developed the gramophone, which replaced Edison's cylinder.
Vor 20 Stunden · In 1887, Emile Berliner: Group of answer choices created the 78 rpm record. worked for Thomas Edison. built Edison's first phonograph. developed the gramophone, which replaced Edison's cylinder.
