Have you ever heard of a liquid-gas phase exchange apparatus and a love thermometer?

Mr. Science Factory is now using it in stationery.

When you hold the bottom of the pen's sphere, the liquid inside magically rises and bubbles appear continuously, as if it has a life of its own.

When you gently release your hand, the cool air allows the liquid to return to its initial state, flowing back to its lower part.

This is because the warmth of your hands causes the liquid to turn into gas, while simultaneously increasing the air pressure, which pushes the liquid to a new height.

When you remove your palm, the temperature of your hand drops, causing the liquid inside the container to cool again. This causes the gas to condense back into a liquid, and the pressure decreases. The reduced pressure causes the liquid in the bulb to flow back into the lower part of the container to restore equilibrium.

Temperature-controlled bubble glass dip pen lets you hold a simple physics experiment in your hand.

It demonstrates the relationship between liquids and gases, and how they are affected by temperature and air pressure.

The temperature-controlled bubble glass dip pen not only features a unique design, but its temperature control function also provides the optimal writing temperature, and the smooth flow of water allows you to write with ease.

It also uses a more interesting way to demonstrate physical phenomena and educational scientific principles.

The glass material allows you to feel a perfect contact with paper, making writing smooth and free, and giving you a high-quality writing experience.

Whether you are a student, an artist, or a calligraphy enthusiast, you can find a pen that meets your needs.

Precautions:

► This is a glass product. Please handle with care to avoid damage.

► After use, please rinse the pen tip with clean water, or immerse the pen tip in clean water to wash it, and then dry it thoroughly with a cloth or paper towel.