Dry Ice Is Not Frozen Water, But Frozen Carbon Dioxide

At exactly 0.01°C and 611.657 Pascals of pressure, pure water can exist simultaneously as liquid, solid (ice), and gas (vapor) in thermodynamic equilibrium. This unique condition is called the triple point and is used to calibrate thermometers worldwide.

In 1986, this crater lake underwent a limnic eruption, releasing an estimated 100,000–300,000 tons of CO2 that suffocated over 1,700 people and 3,500 livestock in nearby villages. Degassing pipes have since been installed to prevent a recurrence.

Their high fat content and relatively low water content make them prone to self-heating and ignition if not properly ventilated. This makes their transportation and storage a significant fire hazard.

As the largest known protein, Titin's scientific name is the longest word in the English language, taking over three hours to pronounce. It meticulously describes the sequence of amino acids that make up this crucial muscle protein.