If we look more closely, the page plays Nobita et al. it is actually a vacant lot waiting to be built on it. Meanwhile, the gray pipe is a concrete pipe that is commonly used for the construction of waterways.
But, for decades Doraemon accompany all of us, the question arises: that pipe has been decades still still mangkrak? Contractor how anyway?
In the 1960s, Japanese society massively left the WC flush and rolled over to replace it with a toilet. So for that need, the Japanese government used a lot of pipes (Dokan) to modernize their sewer lines
Due to the large number of projects being deployed, the pipes are often stacked and placed on vacant pages for a while. After that, as many of the children who did not have access to the playground, they chose the patchwork: blank pages, and of course piles of pipe.
Using these pipes instead of playing tools is actually quite dangerous as well. There were many cases at that time where children were stricken and crushed by pipes much larger than their bodies. But yes his name is also children, dokan it continues to be used so it becomes a habit.
Beginning in the 1990s until now, when the Japanese economy began to stagnate and modernization was uneven, the pipes had already begun to rare its appearance.
Did you know that the story of this pipe also affects popular games? Read the discussion on the second page.