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Metamaterials make the construction of communication and solar towers on Metamaterials make the construction of communication and solar towers on

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Metamaterials make the construction of communication and solar towers on the Moon, as well as sending cargo to Mars more efficient and economical

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Engineering experts from NASA Ames Research Center and Stanford University have proposed the concept of a “universal Swiss army knife” for sending cargo to Mars. Sending 1 kilogram would cost about $2.4 million, based on the cost of the Perseverance mission. But researchers are proposing a new approach using self-reprogramming metamaterials that can change their configuration.

The concept of “zero mass” is based on self-reproduction, a technology proposed by engineer John von Neumann in the 1940s. Scientists are studying self-reprogramming metamaterials that can change their structure so that engineered systems can reproduce themselves and function in the environment.

Metamaterials make the construction of communication and solar towers on the Moon, as well as sending cargo to Mars more efficient and economical

Source: NASA

“The technology of reprogrammable metamaterials has advanced to such an extent that it allows us to think about their application. While it is not yet possible to create everything needed, it is already possible to create a significant portion of the components,” says NASA researcher Christine Gregg of the NASA Ames Research Center, one of the authors of the study.

One of the problems with existing von Neumann probes was that collecting samples from other planets and converting them into engineering components was resource-intensive and required a lot of energy. The solution is to use ready-made, standardized building blocks based on the concept of nature’s building blocks. Biological systems, for example, use limited amounts of amino acids to create various proteins, a strategy that can be applied to engineering.

The researchers created a set of 256 durable 3D structures made from carbon fiber-reinforced polymer, called StattechNN-40CF. Each block has fastening elements that allow them to be interconnected and create a durable structure.

The 3×3 structure made up of these blocks has an average breaking load of 900 Newtons, meaning it can support more than 90 kilograms despite its light weight of just 0.0103 grams per cubic centimeter. “We created various structures, including a boat, a shelter and a bridge, all weighing about 18 kilograms,” says researcher Kenneth Chung of NASA. But most importantly, robots were able to independently assemble these structures, which opens up new possibilities for autonomous construction using metamaterials and robots.

In the experiment, three robots used all 256 blocks to assemble a stationary base over four and a half days. The loader robot delivered blocks from the supply area, the crane robot placed them in the correct positions, and the fastener robot mounted the blocks on the structure.

The robots worked without cameras, lidars or control systems. “We demonstrated the possibility of automatic planning that takes into account collisions between robots and ensures the stability of the structure. But we also looked at models like those that ants use to build their colonies,” says Kenneth Cheung. This construction approach has the potential to build towers on the Moon.

The construction of the towers is particularly important for the Artemis 3 mission because the landing site for returning astronauts is located near the lunar south pole. “The sun’s angle is low there, so to maximize the amount of sunlight, you should place the solar panels as high as possible,” says Chung.

To accomplish this task, the height of the towers must be more than 100 meters, and this will be extremely difficult to achieve with current systems. The team is now focused on demonstrating how their building blocks and robots can be used to build communications and solar towers on the Moon. The authors promise new work on these possibilities in March.

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Car News

Hyundai Creta N Line 2024 sports car declassified

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Hyundai Creta N Line 2024 sports car declassified

The sportiest version of the recently updated Hyundai Creta crossover has been declassified in India: orders for the Hyundai Creta N Line 2024 in the local market are already being accepted, but the official premiere will take place on March 11.

Hyundai Creta N Line 2024 sports car declassified

Judging by the photo, the crossover received more aggressive bumpers, a different radiator grille, and red accents on the body and interior design. Wheels will be 18 inches. According to Autocar India, the car will be offered in two trim levels: base and top-end. Accordingly, the first will have a manual gearbox, the second will have a robotic one. But there is only one engine – the most powerful: a 1.5-liter gasoline turbo engine with 160 hp.

Hyundai Creta N Line 2024 sports car declassified

Hyundai Creta N Line 2024 sports car declassified

Prices will be announced on the day of the premiere, but it is already clear that the Creta N Line will be the most expensive in the lineup.

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How much does it cost to repair Xiaomi 14 Ultra? The official price list for spare parts has been published

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How much does it cost to repair Xiaomi 14 Ultra

Xiaomi 14 Ultra has just gone on sale in China, but Xiaomi has already published the official price list for spare parts so that users understand how much it will cost to repair the device out of warranty.

How much does it cost to repair Xiaomi 14 Ultra?  The official price list for spare parts has been published

Despite the fact that Xiaomi 14 Ultra is currently the pinnacle of the Chinese company’s smartphone manufacturing, repair prices are approximately at the level of other flagships. Replacing the motherboard will cost the most – from 380 to 420 dollars, depending on the amount of memory soldered on it. Out-of-warranty replacement of the screen will cost $190, battery – $25, back cover – $40. Replacing the front camera is $10, speaker replacement is $5.

As for the camera, this is interesting. Replacing the main module with an inch Sony LYT-900 image sensor will cost $140! Replacement of a module with an ultra-wide-angle lens is $70, replacement of a module with a telephoto lens is only $25. And this is quite strange, since these modules use the same Sony IMX858 sensors, and the module with a telephoto lens is more complex due to the presence of an OIS system.

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Components

A mini PC weighing only 660 grams with an 8-core Ryzen 7 7840HS, 32 GB of RAM, a built-in screen and a fingerprint scanner – for $515. Tianbao GEM12 introduced

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A mini PC weighing only 660 grams with an 8 core

An atypical mini-computer went on sale on the Chinese marketplace JD.com. The creators of the device, called Tianbao GEM12, integrated a small screen and even a fingerprint scanner into the body, which can work as part of the Windows Hello biometric identification function.

A mini PC weighing only 660 grams with an 8-core Ryzen 7 7840HS, 32 GB of RAM, a built-in screen and a fingerprint scanner - for $515.  Tianbao GEM12 introduced

The hardware basis of Tianbao GEM12 is an 8-core 16-thread Ryzen 7 7840HS processor with a Radeon 780M graphics core. The device is sold as a DIY kit for $350 or as a pre-configured system: 16GB/512GB for $430 and 32GB/1TB for $515.

A mini PC weighing only 660 grams with an 8-core Ryzen 7 7840HS, 32 GB of RAM, a built-in screen and a fingerprint scanner - for $515.  Tianbao GEM12 introduced

A mini PC weighing only 660 grams with an 8-core Ryzen 7 7840HS, 32 GB of RAM, a built-in screen and a fingerprint scanner - for $515.  Tianbao GEM12 introduced

The mini-PC cooling system has two heat pipes and one fan. The screen is used to display the time, album covers when playing music, and processor load. There is an integrated 2.5 Gbps wired Ethernet adapter with two RJ-45 ports and a module that implements Wi-Fi 6 and Bluetooth 5.2 communications.

A mini PC weighing only 660 grams with an 8-core Ryzen 7 7840HS, 32 GB of RAM, a built-in screen and a fingerprint scanner - for $515.  Tianbao GEM12 introduced

Dimensions of the computer: 130 x 130 x 60 mm, weight: 660 grams.

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