Just saw this video from Mr. Piyush Goyal regarding stability of Bottles in T-18 Train when it accelerates to 180 kmph.
Piyush Goyal Facebook Link
Although it's really nice and effort put to construct the train is really commendable. The Water Bottle used in video is Aquafina not Rail Neer 😂, now I know that Rail Neer Bottle is anything but Stable now proved by Mr. Goyal. Although I truly love the taste of Rail Neer.
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more... #I_Love_Rail_NeerEdit: Updated YouTube link of the same video by different uploader, credit to the creator of the video.