为什么许多古城选在河流弯曲的“凸岸”内侧？
Why did many old cities choose the inside of a river's convex bend?
凸岸水流慢、泥沙堆积成平坦河滩，不易被洪水冲掏；凹岸虽深却易被侵蚀崩塌，所以城邑多落在凸岸。
The convex bank has slow flow and builds flat, stable land, while the concave bank erodes; cities preferred the safe convex side.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Tarbuck & Lutgens,《Earth Science》第14版,Pearson,2015
E. J. Tarbuck and F. K. Lutgens, Earth Science, 14th ed., Pearson, 2015
#凸岸 #沉积
传统村落为什么喜欢建在缓坡上而不是洼地里？
Why did traditional villages prefer gentle slopes over hollows?
缓坡排水快、不积涝，又避开河洪和瘴气，采光通风也好；洼地易淹、潮湿，所以古人多选坡地。
Slopes drain fast, avoid floods and dampness, and get better light and air; hollows flood and stay humid, so people chose slopes.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
普雷斯、西弗尔《理解地球》，W.H. Freeman，2001
Press, F. & Siever, R., Understanding Earth, W.H. Freeman, 2001
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL1282939W：Understanding earth（首版
#村落 #排水
风水里常说“背山面水”，到底有没有科学道理？
Does the feng shui rule back to hills, face the water have science behind it?
有。山能挡住寒冷的北风，水提供饮用和灌溉，缓坡不易被淹又好排水，所以背山面水是宜居的好选址。
Yes. Hills block cold north winds, water supplies drinking and irrigation, and gentle slopes drain well and avoid floods—a sensible site choice.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
普雷斯、西弗尔《理解地球》，W.H. Freeman，2001
Press, F. & Siever, R., Understanding Earth, W.H. Freeman, 2001
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL1282939W：Understanding earth（首版
#风水 #选址
老北京城为什么讲究“坐北朝南”？
Why did old Beijing favor facing south, backed by north?
我国在北回归线以北，房子朝南能最大限度地迎接冬日阳光、保暖，同时背对寒冷的偏北风，住着舒服。
North of the Tropic, south-facing homes catch the low winter sun for warmth and turn their backs to cold northerly winds.
难度 进阶 · 适合 小学高段(9-12)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
卢特根斯、塔巴克《大气：科学导论》，Pearson，2011
Lutgens, F.K. & Tarbuck, E.J., The Atmosphere: An Introduction to Meteorology, Pearson, 2011
独立核验依据 · Independent verification: 核验依据 1 ARCHIVE 标识 isbn_2900131015677：The atmosphere : an introd
#坐北朝南 #采光