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  • Bronze Sun-shaped Device： Secondary Casting Method Icon

    A bronze sun-shaped device, unearthed at the Sanxingdui Ruins in Sichuan province, has a history of more than 3,000 years. The circular device, around 84 cm in diameter, has a protruding center like the sun. Five arms are radially connected to the surrounding halo. The circular hole in the center of the device and five equally spaced circular holes on the halo are all used for fixing purposes.

  • Heaviest Gold Mask of Sanxingdui

    Among the gold masks unearthed at the Sanxingdui archaeological site, one that covers only half a face holds China's record for the heaviest gold object.

  • King of Bronze Statues

    The grand statue of a human figure in bronze, on display at the new Sanxingdui Museum in Sichuan province, southwest China, is the tallest and most complete standing bronze figure in existence.

  • Nest Car: A Mobile Military Reconnaissance Post

    In ancient times, the military deployed a vehicle equipped with a cabin for observing enemy movements from a high altitude, known as the Nest Car because the cabin was suspended high up on a pole, just like a bird's nest.

  • Copper Bird: The Oldest Weather Vane

    The world's earliest wind direction instrument, the copper bird, was invented by Zhang Heng (78-139), a renowned scientist in the Eastern Han Dynasty. It resembles a bird made of copper with a short head and a long tail, placed on a straight pole about 16 centimeters high. When the wind blows, the direction pointed by the bird's head is that of the wind.

  • Water-powered Trip Hammer for Husking

    The water-powered trip hammer is a grain processing tool that uses the power of running water to grind grains, which was invented in the Western Han Dynasty(202 BC-8 AD).

  • Ancient Irrigation Tool: Dragonbone Water Lift

    The dragonbone water lift, a milestone invention first made during the Eastern Han Dynasty (25-220), is a wooden machine used for irrigation.

  • Operations Research Originates in Transport of Military Rations

    To solve the problem of grain transportation, Shen Kuo analyzed the proportion between logistics personnel and soldiers during different marching days, as well as the advantages and disadvantages of using livestock and manpower to transport rations. These analyses were documented in his epic book, Dream Pool Essays.

  • Unique Acoustic Technology in Ancient China

    In his book Dream Pool Essays, Shen Kuo documented an intriguing ancient Chinese practice of using cowhide arrow quivers as both storage for arrows and makeshift pillows. When these quivers were placed on the ground, their hollow interiors allowed people to hear faint sounds of individuals and horses several miles away. The underlying spirit of scientific creativity serves as a wellspring of wisdom and inspiration for modern endeavors.

  • Extracting Copper from Water: The Earliest Hydrometallurgy

    Legend has it that there was a spring in the present day Yanshan county, Jiangxi province, where the water was not sweet but bitter. Local villagers discovered that through boiling this spring water, they could extract gleaming yellow copper. Intrigued, Shen Kuo (1031-1095) traveled to witness this process and documented it in his book Dream Pool Essays.

  • Defending Territory Requires Accurate Maps

    Shen Kuo utilized the Shouling Tu — the most accurate administrative map in that era — as evidence to demonstrate that the contested mountain was situated south of the Baigou River, firmly establishing it as part of the territory of the Song dynasty. The Shouling Tu, which was drawn by Shen in twelve years, played an important role in defending the territory.

  • Black Tea: China's Gift to the World

    Black tea originated in China and spread to the world. Today, it accounts for more than 80 percent of the global tea market.

  • Sipping Green Tea in Spring

    For tea enthusiasts, the changing of seasons is a prelude to the much awaited first cup of spring tea. Sipping fresh green tea in early spring seems to physically herald the arrival of the season of blossoms. Among all tea categories, green tea is the first to hit market shelves each year, and the most produced and consumed tea in China, accounting for 50-60 percent of total tea sales.

  • Bell and Drum Towers: Echoing the Sound of History

    The Bell and Drum Towers, located at the northern tip of the Beijing Central Axis, which is on the UNESCO World Heritage List, play a significant role in the city planning of ancient Beijing.

  • Ancient Jade Masks Highlight Dawenkou Culture

    As one of China's top 10 new archaeological discoveries of 2023, the Wangzhuang site, located in Yongcheng city of Henan province, has a total area of about 630,000 square meters.

Top News

Xi Congratulates Science and Technology Daily on Its 40th Anniversary

Chinese President Xi Jinping has sent a congratulatory letter to the Science and Technology Daily on the occasion of the 40th anniversary of its founding.

Mystery of Qingming's Shifting Dates

Many people have noticed that the date on the Gregorian calendar of the Qingming Festival, a time when Chinese honor their ancestors, is not fixed. In 2025, Qingming fell on April 4, while in 2026 it falls on April 5. So, why does the date of Qingming vary from year to year, when the precise moment of its onset is calculated down to the minute? Science and Technology Daily spoke to Yan Weiguo, president of the Tianjin Astronomical Society, to find out the reason.

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