Do you like science? So, do you have a favorite scientist?
Let's go on a journey into the mysterious world of science with scientists.
We journey into the real world of science with Aristotle, Copernicus, Kepler, Galileo, and Newton, following the dreams and ideals of scientists through their lives.

How can we uncover the mysteries of nature and the secrets of this world?
Careful observation of nature requires methods of studying it, and soon leads to the establishment of what is called a 'theory'.
When observing and exploring nature, what is needed to explain its contents is theory.


It took the hidden efforts of scientists like Copernicus and Kepler to gradually uncover the mysteries of nature.
Science is still developing.
So what does it mean to say we can truly call science? What constitutes true science is experimentation.
Even if it is the words of an authoritative scholar, an experiment that can serve as a basis for judgment is necessary to determine whether it is right or wrong.

This book is the winner of the planning category of the 6th Changbikwa Bipyeongsa 'Good Children's Book' manuscript contest.

Scientists say that when metal rusts, it becomes lighter.
But Lavoisier did not believe anything that he had not personally verified through experimentation.
He created a sealed device, put the metal in it, and heated it over a fire to make it rust faster.
Then he tried to weigh the rusty metal.
No matter how many times I tried the experiment, the result was the same.
The weight of the metal is heavier than before!
What on earth happened? Lavoisier reexamined everything.
Even the smallest piece of metal was thoroughly weighed, and even the weight of dust was calculated.
And that too with a balance scale! To be honest, I can't even imagine Lavoisier's experiment.
How could they do that with a two-arm scale, let alone the most advanced electronic scales available today!

---p.122-124