Common chemicals can often work better than pricey metal catalysts.
Scientists test medieval gunpowder recipes with 15th-century cannon replica
A bit of sulfur, a dash of charcoal, a lot of saltpeter and… KABOOM!
Study confirms superior sound of a Stradivari is due to the varnish
Chemicals used to soak the wood include borax, zinc, copper, alum, and lime water.
Intrepid brewer risks scalding to recreate recipe for long-lost medieval mead
The recipe for bochet was lost for centuries, until it was rediscovered in 2009.
German chemists identified over 7,700 different chemical formulas in beers
Team combined two mass spectrometry techniques to analyze samples in 10 minutes.
大気汚染という「テクノシグネチャー」が地球外文明探査の新たな可能性を拓く
パンデミックの間、世界中で大都市上空のNO2（二酸化窒素）濃度が大幅に低下した。これは、技術文明の存在を示す「テクノシグネチャー」のひとつだ。では、天の川銀河で確認されている太陽系外惑星4,000個以上の大気についてはどうだろう。いまや従来の電波信号だけでなく、惑星の大気中のガスなどに注目して地球外知的生命体を探索する、新たな取り組みが始まっている。
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