Explore a collection of forgotten inventions from the 19th century through this engaging crossword puzzle highlighting remarkable yet overlooked technological advances.
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Across
1. Highly explosive liquid invented during 19th century
2. Obsolete acoustic signaling device
3. Snow shelter invention popularized in 19th century expeditions
4. Early meteorological instrument for atmospheric samples
5. Obsolete telegraph communication system
6. Early device transmitting handwriting remotely
9. Portable 19th-century light source, precursor to flashlight
10. Early mechanical musical instrument innovated in the 1800s
13. Device producing fluorescence discovered in the 1800s
15. Common fruit fly studied in early genetic experiments
17. Invented by Edison to record and reproduce sound
Down
7. Early steam engine innovation used in factories
8. Mechanical device for sound recording before phonograph
11. Plant studied for medicinal inventions in the 19th century
12. Device measuring electric charge in early experiments
14. Science of metal extraction advanced in 19th century
16. Instrument measuring vibrations introduced in 1800s