Hijiriushi, Japanese Dam Technology from the past.

Hello.
Today we went to learn for Hijiriushi or Seigyuu, a tool which used to hold the drain of the river so the stream wont flood to the residence area in the past. The tool just like the Tetrapod that used in common seashore.

Hijiriushi

Hijiriushi without weighting stones. Looks like a cannon.

In the past, some of Yamanashi area frequently flooded. Then, there is nobody who lived nearby the river due to the danger of the flood. So, the Takeda Clan's warlord, Takeda Shingen did some policy to prevent the stream of Kamanashi river to flood. But nowadays, the river stream is not that much as the past. Maybe it was because of the Hijiriushi. That's all i know.

Thanks for reading.
Pepi.

The savior of the land of Yamanashi

Today, we visited a river. No, two rivers. Or was it three??
Well, basically we visited the place to learn about "信玄堤 Shingen-Dzutsumi" or "Shingen Riverbank". Why is it so important?

This is the river that we saw, by the way

Long ago, the river around the Shingen-Dzutsumi wasn't this shallow. It might be not shown, but this river is actually a combination of two rivers, combining into Kamanashi River. When the two rivers met, it caused a big bang and made the water flows to the land.

And thus the big flood would always happened in the area of Yamanashi, though not all.

That's why, the people of Yamanashi at the time made this device;

What is this...?

This device is called Hijiriushi. The main function of the so said device is to weaken the stream of the river, so it doesn't cause a bang. Because of the device, the land that wasn't possible to be resided in, became usable.

Ocha

I saw a linear train today!

Hello!
We went to the place named "The hill where you can see the Linear", or in Japanese リニアの見える丘 'Rinia no mieru Oka'. We saw a train, dashes as fast as Sonic the Hedgehog, or maybe faster. The train seems like as cool as Shinkansen, had long nose to get through the wind.

The screen where you can see the data about the Linear.

The velocity of the Linear is around 500km/hour. But, from what we have seen, it could make until 504km/hour. I can't imagine if i was in the train and see to the window. If i see the window, what kind of scenery i could have seen? Maybe some Line-ars.

The Linear dashes.

Thanks for reading. Please laugh for me.
Pepi.

Linear-- might be the fastest train in Japan!

Today, we went to a hill to go for another Hanami (flower-viewing), but...!

Not as we have initially thought, the flowers have become leaves :(

If you ever plan to do Hanami, make sure to check the conditions, because the flowers could bloom faster or slower every year!

But we did not come back empty-handed, I tell ya! From the hill that we visited, fortunately we could see the Linear train track. What's so special about the Linear is, it might become the fastest train in Japan, faster than the Shinkansen (Bullet train)!

A first-look at Linear

The monitor

At the hill, there is a resting area where you could find a monitor just like the image on the left. The monitor shows a lot of information about the currently running Linear. For example, where the Linear is currently at, at what elevation the Linear is currently running, the Linear's current speed, etc.

Ocha