Everyday Science, Everyday Wonder
Simple questions, smart explanations.
Have you ever heard that rocks in a cabbage field can help the cabbage grow?
It might sound like magic — as if the rocks give water to the plants at night!
But believe it or not, this is real science in action.
Let’s explore how it works.
Rocks Store Heat Like a Battery
In high mountain areas, where cabbages often grow, the weather is hot during the day and cold at night.
During the day, the sun shines on the field, and rocks absorb a lot of heat — even more than the soil!
When the sun goes down, the air gets cold quickly.
But those rocks? They slowly release the heat they stored earlier, just like warm stones in a sauna cooling down at night.
Cooler Rocks = More Dew
Now here’s where the magic begins.
Rocks cool down faster than the air around them. Because of their shape and material, they release heat more efficiently.
As they cool, so does the air nearby.
But the air always has some invisible water vapor floating around.
When the air gets cold enough — we call this the dew point — that vapor turns into tiny water droplets, also known as dew.
Just like how water forms on a cold glass, dew forms on the cool surface of rocks!
Dew Drips into the Soil
All night long, tiny dew drops gather on the rocks, and eventually drip down into the soil.
It’s like a soft, natural watering system — no hoses or sprinklers needed!
This is especially important in highland areas, where water can evaporate quickly during hot days.
Thanks to the rocks, the soil gets a fresh supply of moisture every night, helping cabbage plants stay hydrated.
Cabbage Says Thank You!
With more moisture at night, cabbages can grow stronger roots, absorb more nutrients, and grow bigger and tastier.
It’s like giving thirsty plants a cool drink of water — just when they need it.
So next time you see a field with rocks, remember:
They’re not just sitting there for decoration.
They are silent helpers, turning night air into water — and helping our vegetables grow strong and healthy.
Nature + Science = Magic!
Isn’t it amazing how something as simple as a rock can help grow food?
This is the beauty of science in everyday life. What looks ordinary is often extraordinary when we look closer.
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