What You Don’t Know About Liquid Nitrogen Refrigeration: 10 Interesting Facts

Liquid nitrogen is not only a powerful assistant for scientific research and industrial production, but also hides many amazing cold knowledge. Here are 10 interesting facts about liquid nitrogen that you may not know:

1. The temperature of liquid nitrogen is lower than that of Antarctica
The temperature of liquid nitrogen is as low as -196 ℃, while the lowest temperature in Antarctica is about -89.2 ℃. The extremely low temperature of liquid nitrogen makes it one of the coldest substances on Earth.

2. Liquid nitrogen can turn rubber into "glass"
At the ultra-low temperature of liquid nitrogen, rubber loses its elasticity and becomes brittle and hard like glass, breaking easily with a gentle tap.

3. The "white mist" of liquid nitrogen is not the liquid nitrogen itself
When liquid nitrogen is exposed to air, it rapidly evaporates and absorbs heat, causing water vapor in the surrounding air to condense into small water droplets, forming the "white mist" we see.

4. Liquid nitrogen can turn bananas into "hammers"
Immerse bananas in liquid nitrogen, and they will become incredibly hard, even capable of hitting nails like a hammer!

5. Liquid nitrogen can make balloons' disappear '
When a balloon filled with air is placed in liquid nitrogen, it rapidly contracts as if it has "disappeared". After removal, the balloon will return to its original state.

6. Liquid nitrogen can be used to make cocktails with a "ethereal aura"
Adding a small amount of liquid nitrogen to a cocktail will produce a large amount of "white mist", creating a dreamy visual effect.

7. Liquid nitrogen can suspend superconducting materials
After cooling the superconducting material to liquid nitrogen temperature, it can generate magnetic levitation phenomenon, which is as magical as the maglev train in science fiction movies.

8. Liquid nitrogen can "freeze" sound
At extremely low temperatures, the propagation speed of sound slows down and can even be "frozen" in the material.

9. The lifespan of liquid nitrogen tanks can exceed 10 years
High quality liquid nitrogen tanks can serve for more than 10 years with proper use and maintenance, making them a long-term partner for scientific experiments and industrial production.

10. Liquid nitrogen can make "instant ice cream"
Mix cream and syrup and pour them into liquid nitrogen. It only takes a few seconds to make a smooth and delicate ice cream.

The wonderful properties of liquid nitrogen make it a versatile tool in fields such as science, cuisine, and art. If you have more curiosity about liquid nitrogen, please feel free to contact us and explore the infinite possibilities of the low-temperature world together!