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Liquid nitrogen quickly freezes food, but even after the liquid has completely boiled into a gas, the extreme cold of the food and the displacement of oxygen could cause health concerns.

Liquid nitrogen is famously one of the world’s coldest substances, freezing and shattering anything it comes into contact with. But if you know what you’re doing, you can safely stick your ...

Solid nitrogen colder than -346 degrees Fahrenheit. What’s even cooler is that once the liquid nitrogen becomes solid, there’s another step after that.

Liquid nitrogen is really cold — it boils at negative 321 degrees Fahrenheit. (Water boils at 212 Fahrenheit, which is why you need to heat it to turn it into steam.) ...

Liquid nitrogen, says a group of British engineers. According to a new report in the Economist, liquid nitrogen may just be a viable alternative to hydrogen fuel cells.

The liquid nitrogen freezes the ingredients together, and your cup or cone is ready about a minute later. Because servings are made on the spot, each one requires just a few ingredients.