Stebėjimo bokštas

Stebėjimo bokštai buvo svarbi Didžiosios kinų sienos dalis. Jie buvo pastatyti tam tikrais atstumais palei sieną, kad kariai galėtų iš aukštai matyti tolyn. Kai kariai pamatydavo priešus, jie uždegdavo laužus arba naudodavo dūmus, kad perduotų signalą kitiems bokštams. Taip žinia apie pavojų greitai keliaudavo palei visą sieną, ir visi galėjo pasiruošti gintis. Stebėjimo bokštai padėjo saugoti šalį ir leido kariams bendradarbiauti. Jie yra įdomi senojo pasaulio dalis, rodanti, kaip žmonės bendravo be telefonų ir interneto!

Susijusios temos

Kaip buvo pastatyta Didžioji kinų siena?

Pasaulio regionų istorija

Knowledge Nest

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Naudingos nuorodos

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Num.	Query
1.	info: 2025-01-22 22:21:48.236 RelationalEventId.CommandExecuted[20101] (Microsoft.EntityFrameworkCore.Database.Command) 52ms [Parameters=[@__p_3='50', @__item_Id_0='86c5f739-8ed5-4377-b98c-3d4b1244eabe', @__level_Id_1='3442bb2c-ac6a-4947-bdf3-d8d2bcfcb250', @__site_Id_2='ee693ea4-a7a7-489f-bdda-26feaf678dda'], CommandType='Text', CommandTimeout='30'] SELECT [t2].[TagId], [t2].[TopicId], [t2].[Id], [t2].[Active], [t2].[Created], [t2].[Deleted], [t2].[Description], [t2].[Details], [t2].[SiteId], [t2].[Title], [t2].[TitleSlug], [t2].[Url], [t2].[Wikipedia], [t2].[WikipediaPageId], [t2].[WikipediaUpdated], [t1].[Id], [t1].[Id0], [t1].[Id1] FROM ( SELECT TOP(@__p_3) [t].[Id], [c].[Id] AS [Id0], [c0].[Id] AS [Id1], [t].[TitleSlug] FROM [Topics] AS [t] WITH (NOLOCK) INNER JOIN [Categories] AS [c] ON [t].[CategoryId] = [c].[Id] LEFT JOIN [Categories] AS [c0] ON [c].[ParentId] = [c0].[Id] WHERE EXISTS ( SELECT 1 FROM [TagTopics] AS [t0] WHERE [t].[Id] = [t0].[TopicId] AND [t0].[TagId] = @__item_Id_0) AND [t].[LevelId] = @__level_Id_1 AND [c].[SiteId] = @__site_Id_2 AND [c].[Active] = CAST(1 AS bit) AND [c].[Deleted] = CAST(0 AS bit) AND [c0].[Active] = CAST(1 AS bit) AND [c0].[Deleted] = CAST(0 AS bit) AND [t].[Active] = CAST(1 AS bit) AND [t].[Deleted] = CAST(0 AS bit) ORDER BY [t].[TitleSlug] ) AS [t1] INNER JOIN ( SELECT [t3].[TagId], [t3].[TopicId], [t4].[Id], [t4].[Active], [t4].[Created], [t4].[Deleted], [t4].[Description], [t4].[Details], [t4].[SiteId], [t4].[Title], [t4].[TitleSlug], [t4].[Url], [t4].[Wikipedia], [t4].[WikipediaPageId], [t4].[WikipediaUpdated] FROM [TagTopics] AS [t3] INNER JOIN [Tags] AS [t4] ON [t3].[TagId] = [t4].[Id] WHERE [t4].[Active] = CAST(1 AS bit) AND [t4].[Deleted] = CAST(0 AS bit) ) AS [t2] ON [t1].[Id] = [t2].[TopicId] ORDER BY [t1].[TitleSlug], [t1].[Id], [t1].[Id0], [t1].[Id1]
52 ms