Happy Inventors' Day (9 Nov in 🇩🇪) - here are 5 inventors to look up today.

1. Marie Van Brittan Brown - she invented the first home security system.
2. Jane Ní Dhulchaointigh - she invented Sugru.
3. Hedy Lamarr - she invented a spread spectrum & frequency-hopping tech - thank her for Wi-Fi & Bluethooth.
4. Rachel Zimmerman - she invented the Blissymbol printer.
5. Olga Malinkiewicz - she invented an inkjet printing-based tech for making perovskite solar cells.
💡
#InventorsDay #TagDerErfinder

Happy Inventors' Day (9 Nov in 🇩🇪) - here are 5 inventors to look up today.

1. Marie Van Brittan Brown - she invented the first home security system.
2. Jane Ní Dhulchaointigh - she invented Sugru.
3. Hedy Lamarr - she invented a spread spectrum & frequency-hopping tech - thank her for Wi-Fi & Bluethooth.
4. Rachel Zimmerman - she invented the Blissymbol printer.
5. Olga Malinkiewicz - she invented an inkjet printing-based tech for making perovskite solar cells.
💡
#InventorsDay #TagDerErfinder