JAKARTA – Throughout the history of civilization man, the technology found is growing. Some of them are very amazing and even managed to astonish scientists today.
So, what are the ancient technologies that have surprised scientists today? Taken from the YouTube iNews Variety Show, Tuesday (26/7/2022), the details are below.
1. Damascus Sword
The Damascus Sword is not as popular as the Katana Sword used by the Samurai. But the Damascus sword is the strongest and sharpest sword ever recorded in the history of the sword.
The Damascus sword comes from the Syrian capital, the city of Damascus. The material of this sword is made of steel that is different from the others, namely Damascus steel and there are also other additional materials.
Damascus swords contain carbon nanotubes whose strength can be 30 times that of the strongest steel. Even so sharp and strong the Damascus Sword, it can cut iron.
2. Yakhchal
Yakhchal is a place that serves to accommodate all food to keep it fresh by utilizing nature. You could say Yakhchal is an ancient version of the refrigerator that has a conical shape.
Yakhchal is found in mainland Iran. Inside there is a pool to store water mixed with lime sand and ash, the function of which is to make it waterproof so the water doesn’t get moldy easily.
3. Ancient Roman Concrete
The ancient Roman concrete structure in the Colosseum in Rome has really succeeded in confusing modern scientists. Because the concrete is timeless even up to more than 2000 years.
Research reveals that the recipe for modern concrete with ancient Roman concrete is very different. Ancient Roman concrete was made from materials such as volcanic ash, limewater and mixed seawater.
This mixture is then melted at a low temperature to reduce the carbon content in the cement. This recipe is what makes Roman cement last much longer than modern buildings.
4. Yangtze River
The Yangtze River is a river basin where it is believed that this is an amazing ancient technology. Archaeologists believe that this is one of the oldest water management projects in the world.
The Yangtze River was created to reduce the risk of flooding for the people who lived here about 5000 years ago. The ancients did something innovative by digging the ground to make dams.
They introduced a gating system that could control the water. The system they created is spread over an area of up to 10 hectares.
5. Delhi’s Iron Pillar
Pillar stands in the courtyard of the Quwwatul mosque in Delhi, India. This thing has been made from 1,500 years ago. This pillar is one of the most mysterious monuments because the iron itself is still very clean.
There is no visible rust on the pillars even though they are not polished. Researchers call this because of the secret anti-rust substance which is still a mystery. The pillar itself has a diameter of 41cm and is planted as deep as 93cm.
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