What are the railway stones called? Revealing the secrets of ballast and hot topics on the Internet
As an important pillar of modern transportation, railway construction details are often ignored. For example, those seemingly ordinary stones beside the railway tracks have professional names——ballast. This article will focus on this cold knowledge and present you with a structured content report based on the hot topics on the Internet in the past 10 days.
1. What is railway ballast?
Ballast is gravel laid under railway sleepers. Its main function is to disperse pressure, drain water and secure the sleepers. It is mostly made of granite or basalt and needs to have high strength and corrosion resistance. The following are common classifications of ballast:
| Type | Material | Purpose |
|---|---|---|
| Ordinary ballast | granite | General railway lines |
| High performance ballast | basalt | high speed railway |
| Asphalt ballast | Gravel + Asphalt | Special sections (such as bridges) |
2. Summary of hot topics across the Internet in the past 10 days
The following are the five major topics and related data that have been hotly discussed on the entire Internet recently (as of October 2023):
| Ranking | topic | heat index | Main platform |
|---|---|---|---|
| 1 | Hangzhou Asian Games Closing | 9.8 | Weibo, Douyin |
| 2 | iPhone 15 series controversy | 9.5 | Zhihu, Bilibili |
| 3 | Nobel Prize announced | 8.7 | WeChat public account |
| 4 | Discussion on “Prepared Dishes Entering Campus” | 8.2 | Douyin, Toutiao |
| 5 | OpenAI launches DALL·E 3 | 7.9 | Twitter, Reddit |
3. Expansion of cold railway knowledge
In addition to ballast, the railway has many interesting details:
1.Gauge: China's standard gauge is 1435 mm, which may differ in different countries (for example, Russia is 1520 mm).
2.Seamless rail: Modern railways use welded long rails to reduce the "clang" sound.
3.Yellow safety thread: Platform markings can prevent passengers from being caught in the airflow of the train.
4. Relationship between hotspots and railways
During the Hangzhou Asian Games, China's high-speed rail became the focus of foreign media reports, and the "transportation power" strategy also echoed technological innovation (such as quantum technology that won the Nobel Prize in Physics). In the future, railway technology may draw inspiration from these hot spots.
Conclusion
From humble ballast to globally discussed technological events, details and trends are equally worthy of attention. The stone of the railway is not only the cornerstone of the project, but also the epitome of human wisdom.
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