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Vivinavi Los Angeles
Anything and everything related to travel to Japan, topical.

Free talk
#1
  • 倍金萬
  • mail
  • 2018/02/14 11:44

Those of you who have crossed the ocean to come here to Los Angeles and Japan
are always concerned about something related to your travel between Los Angeles and Japan.

If you have anything to say or questions, please feel free to write.
I'll try to write "something" as well.

Example ：
What means do you use to call when you return to Japan?

Which seat on the plane do you prefer, Aisle or Window, front, back,

Which airline do you think has the best food?

Which mode of transportation do you use to get to the local area?

and so on and so on

This text has been translated by auto-translation. There may be a slight difference between the original text and the translation. (Original Language: 日本語)

#3721
  • spiderman
  • 2023/12/10 (Sun) 16:06
  • Report

＞ When the aircraft is ascending, the trajectory of the fountain will drop and it will not hit a good spot.

＞ When the aircraft is descending, the fountain will rise up and increase pressure.

We will examine this today using Newtonian physics. I mention Newtonian because there is a broader Einsteinian physics, which gives more complicated results.

Consider the partial force of a fountain. It can be analyzed into an upward and a forward partial force. Let us assume that the upward force is 5 m/sec and the forward force is also 5 m/sec. This force of the fountain will cause the water to flow at approximately 7m/sec.

An airplane descends at 1000 ft/min. It descends at roughly 17m/sec. This is a fairly normal speed.

Then the 5m upward force of the fountain is added to the 17m force, and the force on the buttocks is 22m/sec, about 4 times the initial force.

This is an explosive force. The user may be indifferent about this, but from an engineer's point of view, it should never be ignored.

There must be a device or some consideration for this during design. For example, turning off the water while the aircraft is ascending or descending, or attaching sensors to make changes in water pressure.

This text has been translated by auto-translation. There may be a slight difference between the original text and the translation. (Original Language: 日本語)

#3724
  • アンパン
  • 2023/12/10 (Sun) 16:50
  • Report

> An airplane descends at 1000 ft per minute. It descends at roughly 17m per second.

100ft is about 300m.
Thus 1 second is 5m of descent ？

This text has been translated by auto-translation. There may be a slight difference between the original text and the translation. (Original Language: 日本語)

#3725
  • spiderman
  • 2023/12/10 (Sun) 22:19
  • Report

#3722 spider men

This is another otchan. You're a nasty man, aren't you?

By the way, seat belts are only required up to 10,000 feet.

Airplanes go up to 40,000 feet. And then they go back down again. You have to be interested to see it go up and down.

This text has been translated by auto-translation. There may be a slight difference between the original text and the translation. (Original Language: 日本語)

#3726
  • spiderman
  • 2023/12/10 (Sun) 22:22
  • Report

3724 100ft is about 300m

Let's do the math again.

This text has been translated by auto-translation. There may be a slight difference between the original text and the translation. (Original Language: 日本語)

#3727
  • あんぱん
  • 2023/12/10 (Sun) 23:04
  • Report

Wrong writing of 1000ft, not 100.

1000ft is about 300m ．
Thus a second's descent is 5m ？

This text has been translated by auto-translation. There may be a slight difference between the original text and the translation. (Original Language: 日本語)

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