الصوت الساكن
mundo curioso
🍚 A farinha é mais perigosa que a gasolina? Pó orgânico fino - farinha, amido, açúcar de confeiteiro - em certa concentração no ar forma uma mistura explosiva. O mecanismo é semelhante ao da combustão de qualquer combustível: a enorme área superficial total das partículas proporciona contato instantâneo com o oxigênio.
تابع
31
1
12
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