German inventions or discoveries of Germans:

Induction cooker: Induction cooker is also called electromagnetic cooker. The first household induction cooker was born in Germany in 1957.

Range hood: In 1941, the German Schnoder transferred the patent for the range hood to Siemens and quickly launched it on the market.

MP3 format: Invented and standardized in 1991 by a group of engineers from the Fraunhofer-Gesellschaft, a research organization in Erlangen, Germany.

Pencils: The world's first pencil factory, the Staedtler Pencil Factory, was built in Nuremberg, Germany in 1662. Later, the German F. Castel founded the Faber Castel Graphite Pencil Factory in Nuremberg, which made graphite pencil rod manufacturing technology a big step forward. (French and American scientists later improved it)

35mm camera: (35mm camera is undoubtedly the most popular camera at present, most SLRs are 35mm cameras.) In 1866, the German chemist Schott and optics Jia Agu invented the barium crown optical glass at Zeiss and produced a positive light photographic lens, which led to the rapid development of the design and manufacture of photographic lenses. In 1913, German Oskar Barnack developed the world's first 35mm camera. In 1935, the Exact single-lens reflex camera appeared in Germany, making it easier to adjust focus and change lenses.

Car: In 1885, German engineer Karl Benz built what is recognized as the world's first modern car in Mannheim. People generally regard 1886 as the first year of the automobile, and some scholars regard 1885, the year when Carl Benz built the first three-wheeled automobile, as the birth year of the automobile.

Harmonica: In 1821, the German organist Bushmann put 15 sound pipes together to make a small musical instrument. In 1875, 24-year-old German watchmaker He Lai designed the harmonica based on the small musical instrument invented by Bushmann. The harmonica quickly became popular among people, and Helai established the Helai Harmonica Company.

BB cream: BB cream has appeared as early as the 1960s and originated in Germany.

X-rays: Discovered by German physicist W.K. Roentgen in 1895, they are also called Roentgen rays.

Cannon: The cannon originated in the 14th century and was invented by a German monk. A wide variety of heavy cannons appeared in the 14th century.