什么是罗马混凝土？
What was Roman concrete?
罗马混凝土用火山灰、石灰和碎石混合，遇海水会生成稀有矿物而越来越硬，故海港建筑千年不倒。它与现代水泥机理不同，近年被重新研究以造耐久低碳混凝土。
Roman concrete mixed volcanic ash, lime, and rubble; in seawater it formed rare minerals that made it harder over time, so harbor structures survive millennia. Its mechanism differs from modern cement and is studied again to make durable, low-carbon concrete.
难度 专业 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Lehner《完整的金字塔》；Jackson 等《PNAS》2013（罗马混凝土）；中国《赵州桥志》
Lehner, The Complete Pyramids; Jackson et al., PNAS (2013, Roman concrete); Zhaozhou Bridge Records
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL2757039W：The Complete Pyramids（首
#罗马 #混凝土 #火山灰
什么是悬空寺的力学原理？
What are the mechanics of the Hanging Temple?
悬空寺建于恒山峭壁，木梁插入岩体横孔并楔紧形成悬臂支撑，把荷载传到山体。它选址在凹崖避风避雨，减少风化。三教合一的建筑历经1500年不坠。
The Hanging Temple is built on a Hengshan cliff; wooden beams inserted into rock cross-holes and wedged form cantilever supports that transfer loads into the mountain. Sited in a recessed crag, it avoids wind and rain and thus weathering. This three-religion temple has stood 1,500 years.
难度 专业 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-10-03
来源 · Source
Hibbeler，《工程力学：静力学》（第14版）
Hibbeler, 'Engineering Mechanics: Statics' (14th ed.)
独立核验依据 · Independent verification: 核验依据 1 ISBN 9781292247137
#悬空寺 #悬臂 #岩体
什么是古罗马道路工程？
What was Roman road engineering?
古罗马道路用多层结构：大石块基层、碎石层和楔石路面，并设排水坡度和笔直选线。它们连接帝国各行省，至今部分路基仍结实。俗语“条条大路通罗马”即源于此。
Roman roads used layered construction: large stone foundation, rubble, and fitted surface stones, with drainage camber and straight alignment. They linked the empire's provinces, and some roadbeds remain solid today. The saying 'all roads lead to Rome' comes from this.
难度 专业 · 适合 初中(12-15)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#罗马 #道路 #路基
什么是吴哥窟水利系统？
What was the water system of Angkor Wat?
吴哥窟周边有庞大的人工水库（巴莱）和运河网，雨季蓄水、旱季灌溉并调节城市用水。它支撑了百万人口的城市运转。近年激光遥感才看清其全貌。
Around Angkor Wat lies a vast network of artificial reservoirs (barays) and canals that stored rain for dry-season irrigation and urban water. It supported a city of up to a million people. Laser remote sensing only recently revealed its full extent.
难度 专业 · 适合 初中(12-15)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#吴哥 #水利 #水库
什么是都江堰？
What is the Dujiangyan irrigation system?
都江堰是战国时期李冰在成都平原修建的无坝引水工程，用鱼嘴分水、飞沙堰排沙、宝瓶口控水。它至今仍在灌溉上千万亩农田。体现了顺应水势的生态智慧。
Dujiangyan is a dam-free diversion system built by Li Bing in the Warring States period on the Chengdu plain, using a leaping mouth to split flow, a spillway to expel sand, and a bottle-neck channel to control water. It still irrigates millions of mu of farmland. It shows ecology-wise engineering in harmony with water.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-06
来源 · Source
联合国教科文组织世界遗产中心《青城山—都江堰》
UNESCO World Heritage Centre, Mount Qingcheng and Dujiangyan Irrigation System
独立核验依据 · Independent verification: 核验依据 1 UNESCO World Heritage List Ref. 1001
#都江堰 #水利 #灌溉
什么是佩特拉古城引水？
What is the water system of Petra?
佩特拉是约旦沙漠中的古城，纳西比人开凿引水渠、蓄水池和陶管，把稀少雨水收集利用。它还用峡谷地形防洪。这让它能在干旱区繁盛数百年。
Petra is a desert city in Jordan where the Nabataeans carved channels, cisterns, and terracotta pipes to collect scarce rain. They also used canyon terrain for flood control. This let the city thrive for centuries in arid land.
难度 进阶 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#佩特拉 #水利 #沙漠
什么是京杭大运河？
What is the Grand Canal of China?
京杭大运河始凿于春秋、隋代贯通，北起北京南至杭州，全长约1794公里，是世界最长人工运河。它沟通五大水系，曾是国家漕运命脉。今天部分河段仍通航。
The Grand Canal was first dug in the Spring and Autumn period and linked in the Sui dynasty, running about 1,794 km from Beijing to Hangzhou, the world's longest artificial canal. It connects five major river systems and was the lifeline of imperial grain transport. Some sections still navigate today.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
联合国教科文组织世界遗产中心《中国大运河》
UNESCO World Heritage Centre, The Grand Canal
独立核验依据 · Independent verification: 核验依据 1 ARCHIVE 标识 perma_cc_DS37-QWM3：DS37-QWM3: UNESCO World He
#大运河 #运河 #漕运
什么是罗马水道桥？
What is a Roman aqueduct?
罗马水道桥用微微倾斜的石拱渠道把远山泉水引进城里，靠重力自流。西班牙塞戈维亚水道桥保存极好，高约29米。它体现古罗马的测绘与拱券技术。
Roman aqueducts used gently sloping stone arches to bring mountain spring water into cities by gravity flow. Spain's Segovia aqueduct is superbly preserved at about 29 m high. It shows Roman surveying and arch technology.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-04
来源 · Source
Owens,《The Kremna Aqueduct and Water Supply in Roman Cities》,Greece and Rome,1991 (DOI: 10.1017/s001738350002297x)
Owens, 'The Kremna Aqueduct and Water Supply in Roman Cities', Greece and Rome, 1991, DOI: 10.1017/s001738350002297x
独立核验依据 · Independent verification: 核验依据 1 Crossref DOI 10.1017/s001738350002297x; Greece and Rome
#罗马 #水道 #拱券
什么是应县木塔？
What is the Yingxian Wooden Pagoda?
应县木塔建于辽代，高约67米，全木结构不用一根铁钉，靠榫卯层层咬合。它近千年来经历多次地震仍屹立。是世界上最高的古代木构建筑。
The Yingxian Wooden Pagoda was built in the Liao dynasty, about 67 m tall, entirely of wood with not a single iron nail, joined by mortise and tenon. It has survived many earthquakes over nearly a millennium. It is the world's tallest ancient wooden structure.
难度 进阶 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录仅给书名，无版次与年份；同一书名常对应多个版次，不臆测具体版本。
Chen & Zhang《应县木塔》；建筑抗震设计
Chen & Zhang, Yingxian Wood Pagoda; seismic design of timber structures
#木塔 #辽代 #榫卯
什么是长城？
What is the Great Wall?
长城是中国古代为防御北方游牧民族而修建的连续军事工程，总长超过两万公里。它因地制宜用土、石、砖砌筑，含关隘、烽火台。今天主要是明代遗存。
The Great Wall is a continuous military fortification built in ancient China to defend against northern nomads, over 20,000 km in total length. It used local earth, stone, and brick with passes and beacon towers. What remains today is mainly from the Ming dynasty.
难度 入门 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#长城 #防御 #古工程
什么是兵马俑？
What are the Terracotta Warriors?
兵马俑是秦始皇陵陪葬的陶制军队，约八千件真人大小的俑，各面容不同。它们用模具与手塑结合烧成，原本有彩绘。1974年被农民打井发现。
The Terracotta Warriors are a pottery army buried with Qin Shi Huang's mausoleum, about 8,000 life-size figures each with a different face. Made by combining molds and hand shaping then fired, they were originally painted. They were found in 1974 by farmers digging a well.
难度 入门 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#兵马俑 #陶器 #秦代
什么是金字塔？
What is a pyramid?
金字塔是古埃及法老的巨型石砌陵墓，以胡夫金字塔最大，约230万块巨石堆成。其底面方正、对准方位极为精确。它展现了古代惊人的组织与运输能力。
Pyramids are giant stone tombs of Egyptian pharaohs, the largest being Khufu's, built from about 2.3 million blocks. Its base is square and aligned with remarkable precision. It shows ancient organizational and transport prowess.
难度 入门 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Lehner《完整的金字塔》；Jackson 等《PNAS》2013（罗马混凝土）；中国《赵州桥志》
Lehner, The Complete Pyramids; Jackson et al., PNAS (2013, Roman concrete); Zhaozhou Bridge Records
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL2757039W：The Complete Pyramids（首
#金字塔 #古埃及 #石砌