Последние добавленные видео:
why-railroads-have-gaps
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1 year ago
4425931 1 year ago 15:53Why Railroads Don't Need Expansion Joints
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6 months ago
7166122 6 months ago 27:20Why Don’t Railroads Need Expansion Joints?
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8 years ago
742188 8 years ago 4:46Thermal Expansion - Why are gaps left between railway tracks? | #aumsum #kids #science
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6 months ago
482 6 months ago 1:45Why Railway Tracks Have Gaps: The Science Explained!
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4 years ago
11155575 4 years ago 5:31Why Are There Stones Along Railway Tracks?
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4 years ago
17755 4 years ago 2:19Why railway track have gap at joint? | Thermal Expansion | Unnoticed Things
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5 days ago
66 5 days ago 1:03Why do railway tracks have gaps?