Solved cryptogram
Tungsten stays solid at temperatures that would melt any other metal, which suits a filament.
Chemistry Facts, sourced to Royal Society of Chemistry.
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What it means
Its melting point is over three thousand degrees Celsius, higher than any other metal, and it holds its strength at temperatures that would leave steel as a puddle. That is what made the incandescent bulb practical: a filament has to glow white hot without evaporating. The same property sends tungsten into rocket nozzles, welding electrodes and radiation shielding.
The claim comes from Royal Society of Chemistry.
- SourceRoyal Society of Chemistry
- CollectionChemistry Facts
- Difficultyhard
- Length77 letters, 19 unique
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