For me, the stones feel like part of the earth. I can feel the warmth of stones as the skin of the earth, just as I can feel the warmth of human skin when I touch it. However, I don't know anything about the earth or the history of the earth. It is a one-sided desire, but I want to know more about the earth. So I decided to make this work.

My work "History Player" is not a clock.

However, stones can represent eras. So what are the elements that represent the era?

I looked up elements of stones. These are going to be variables too.

• texture/ingredients
• tempreture
• shape
• radiation
• density/weight

Shape

One of the reasons that the change of Stone's history happens is because of erosion by river, sea, rain, wind(weathering) or magma.

Not only the shape changes by erosion but also the weight and textures change.

So we can imagine their journey from their erosion.

My assumption so far

I also want to make it easy to use in home.

So I chose shape, weight and textures to collect the data of a stone.