PokeVideoPlayer v23.9-app.js-020924_
0143ab93_videojs8_1563605 licensed under gpl3-or-later
ImmersiveAmbientModecolor: #bcb2b4 (color 2)
Video Format : (720p) openh264 ( https://github.com/cisco/openh264) mp4a.40.2 | 44100Hz
Audio Format: 140 ( High )
PokeEncryptID: 4fab415e1d30ed83985911a34474e0b7c39397b69ebdecd3cf3fa48b3e2ae5ec0813f209754222c216503993141c4706
Proxy : cal1.iv.ggtyler.dev - refresh the page to change the proxy location
Date : 1732395913231 - unknown on Apple WebKit
Mystery text : RndNaS04clZUU3MgaSAgbG92ICB1IGNhbDEuaXYuZ2d0eWxlci5kZXY=
143 : true
17,535 Views • Apr 16, 2024 • Click to toggle off description
Why do Japanese bullet trains have those really long noses? You might think it helps them go faster, but is not true. Trains in China and Europe can reach even higher speeds without elongated fronts. The secret to this lies in Japan's landscape. A lot of their train routes are full of tunnels with high-density populations. In the 90s, earlier bullet trains generated extremely loud sonic booms when passing through these tunnels. Engineers designed the trains' aerodynamic noses to dramatically reduce tunnel noise levels. Their elongated shape quiets the pressure waves created at high speeds. While not needed for speed, the nose proves key for navigating Japan's infrastructure without disturbing residents.
Views : 17,535
Genre: People & Blogs
Uploaded At Apr 16, 2024 ^^
warning: returnyoutubedislikes may not be accurate, this is just an estiment ehe :3
Rating : 4.722 (55/735 LTDR)
93.04% of the users lieked the video!!
6.96% of the users dislieked the video!!
User score: 89.56- Overwhelmingly Positive
RYD date created : 2024-04-30T06:09:24.208814Z
See in json
21 Comments
Top Comments of this video!! :3
Thought it was for aerodynamics.
6 |
It's not just the amount of tunnels. Japanese tunnels have a smaller cross section than those on other high speed railways. This makes tunnel boom a bigger issue.
1 |
Nice to know 😮
5 |
It's just a different design, no aerodynamics are involved. Not everything has a scientific justification
2 |
For me it's more that culture
2 |
Train-burgstein
1 |
Разве при лучшей аэродинамике не уменьшается сопротивление? Разве громкость аэродинамического хлопка не пропорциональна сопротивлению воздуха в данном случае? Получается, такой нос полезен и для экономии/скорости тоже
2 |
Sonic booms at 300mph? No.
5 |
@Hanstein.
7 months ago
Because round isn't scary, pointy is scary☝🏾
43 |