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Xenobots: scientists create self-replicating robots

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American scientists who created the first living robots say life forms known as xenobots can now reproduce in ways that are not seen in plants and animals. Formed from the stem cells of the African clawed frog (Xenopus laevis), from which it gets its name, xenobots are less than a millimeter (0.04 inches) wide. The tiny blisters were first discovered in 2020 after experiments showed they could move, work together in groups, and heal themselves.

Now the scientists who developed them at the University of Vermont, Tufts University and the Wyss Institute of Biological Engineering at Harvard University say they have discovered an entirely new form of biological reproduction, unlike any animal or plant known to science.

Image Credit: Research article on kinematic self-reproduction in reconfigurable organisms.

“I was surprised by this,” said Michael Levin, professor of biology and director of the Allen Discovery Center at Tufts University, who is co-author of the new study. “Toads have a way of reproduction that they usually use, but when you release (cells) from the rest of the embryo and give them a chance to figure out how to be in a new environment, they don’t just discover that they are.” We found a new way of locomotion, but also, apparently, discovered a new way of reproduction. “

This new form of reproduction forces xenobots to efficiently harvest free stem cells, collecting them in piles, which can then grow into xenobots.

Realizing that the shape of the xenobots was holding them back, the researchers used AI to test many new body shapes to maximize the stem cell harvesting process. The AI ​​has evolved into a C-shape reminiscent of the game’s iconic Pac-Man character.

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“AI did not program these machines in the way we usually think of writing code. He shaped, sculpted and designed the Pac-Man shape, ”said study lead author Josh Bongard, professor of computer science and robotics expert at the University of Vermont. “Form is essentially a program. Form affects the behavior of xenobots to enhance this incredibly amazing process. “

Although the idea of ​​self-replicating machines is reminiscent of names like The Terminator. about the future and other similar films, the researchers are confident that these robots are contained in the laboratory, are biodegradable and easily die out. But the discovery of self-replicating robots opens up a whole new world of possibilities. A little more useful than humanoid robots proposed by Elon Musk

“Much is possible if we take advantage of this plasticity and the ability of cells to solve problems,” Bongard said. The study was originally published in Scientific journal PNAS revised in pairs 20 November 2021

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The new European Samsung Galaxy S22 will be equipped with an Exynos 2200 processor

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The new European Samsung Galaxy S22 will be equipped with an Exynos 2200 processor

As the date of the announcement of the new Samsung Galaxy S22 family of smartphones approaches, publications begin to appear on social networks, which in some way confirm many of the rumors that have appeared.

One of the most pressing doubts is related to the new SoC (System-on-Chip) from Samsung. new exynos 2200, which features the new Xclipse 920 graphics controller using the AMD RDNA2 architecture.

According to this Twitter post, which lists the SoCs that will be distributed across different regions, it was created with firmware development in mind, which is being created for the new Galaxy S22.

If proven, the European continent will be the only region where the new Exynos 2200 will be exclusive, and the markets where both SoCs are available, such as Africa, the Middle East, and Southwest Asia, the rest will be Snapdragon 8 Gen1 exclusive. . . .

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Horizon Chase Gets New China Spirit DLC – Mobile Gamer

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Horizon Chase Gets New China Spirit DLC - Mobile Gamer

Horizon Chase, one of best offline racing games per android e iOS it has a new update. The update brought a new DLC called Chinese spirit, which includes cars and new tracks. The price of new content is 10.99 reais.

The DLC is exclusive to the mobile version of Horizon Chase.

as it happened in other years, Aquiris releases an exclusive mobile update to celebrate the Chinese New Year. Chinese New Year is celebrated on February 1st.

This update comes with a new Lightning car (signs?) that looks like a Tesla. This car is also equipped with an electric motor in the game. The pack includes 4 unique coloring pages and 9 new tracks.

Watch the update trailer.

About chasing the horizon

Originally released in 2015, Horizon Chase is still being updated to this day (24). The racing game is one of the main games of the genre and one of the best offline racing games for mobile phones.

Created as a tribute to such classics as Top Gear (SNES), Out Run (Mega Drive) and Lotus Turbo Challenge (Amiga, the eternal “father of Top Gear”). Three super classics from the 90s, Horizon Chase also features Amazing DLC ​​with the eternal idol tracks Airton Senna.

A complete offline oriented game with so much content that it also ended up on PC and consoles. Horizon Chase is a must. A game that will appeal to both the generation that grew up on old consoles and the youth who like games that do not require the Internet.

Download links: ANDROID | iOS

Developer: Aquiris
Advertising: No | Offline game
Contains in-app purchases: only one
Requires Android 4.0 / iOS 7.1
Language: Portuguese | Size: 530 MB

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The James Webb Telescope arrived today at L2, its destination in orbit around the Sun – 01/24/2022

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The James Webb Telescope arrived today at L2, its destination in orbit around the Sun - 01/24/2022

Nearly a month after launch, the James Webb Space Telescope will arrive today (24) at its deep space destination. According to NASA, the telescope’s thrusters are due to fire on Monday afternoon, when the giant is put into orbit around the Sun.

Released December 25James Webb will enter orbit at a point known as Lagrange 2 (or L2), about 1.5 million kilometers from Earth. This distance is four times greater than the distance between our planet and the Moon. At this point, the gravitational forces of the Earth and the Sun cancel each other out, forcing the object to stay there effortlessly and using a minimum of fuel.

Once in his new home, millions of miles from Earth, Webb will complete instrument testing and calibration procedures before he goes to work. Work is only scheduled to begin in June 2022, a date that should also mark the delivery of the first images taken by the telescope.

NASA will not broadcast James Webb’s arrival at his new home in space. However, the agency plans several follow-up live broadcasts after completing an important part of the mission.

Starting at 5:00 pm (Brazil time), the agency will host a live broadcast with scientists and engineers working on the Webb project. The broadcast will be NASA Science Live as well as their profiles on YouTube, facebook e Twitter.

During the live broadcast, viewers will be able to ask questions using the hashtag #UnfoldtheUniverse or leave comments on facebook or on youtube.

Amber Strawn, Associate Communications Specialist for the Webb Project at NASA’s Goddard Space Flight Center, and Scarlene Hernandez, Flight Systems Engineer at the Space Telescope Science Institute, will talk about the telescope’s journey and answer questions from netizens.

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The live broadcast will be followed by a press conference, also broadcast on the agency’s website.

Mission

The mission of the James Webb Telescope is to better understand the early stages of the formation of our Universe, to observe and discover distant exoplanets, and to try to answer questions such as: How fast is the Universe expanding?

The telescope, with a $10 billion investment, is the successor and collaborator of the Hubble telescope launched in 1990. Both were created for observation in deep space, that is, astronomical objects that are very far from the Earth. But while Hubble is detecting ultraviolet light and the visible elements of the electromagnetic spectrum, the novice will be able to see space in the infrared spectrum – invisible to the naked eye.

James Webb will be able to take pictures beyond the nebulae — clouds of gas and dust — that are the strength of his predecessor, and he will be able to show where stars are born. Thus, it complements the existing information.

In addition, Hubble will be able to look 400 million years after the Big Bang, and James Webb will allow us to observe the first galaxies formed about 100 million years after this phenomenon. Thanks to this, scientists will be able to better understand the conditions for the origin of the universe.

The researchers also intend to use the telescope to study the supermassive black holes that appear to occupy the centers of distant galaxies.

Last stage

With the arrival of James Webb at point L2, the mission comes to the last leg of the journey. During the 30 days that the telescope followed its orbital point, it completed the relevant assembly steps without much trouble.

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In early January, the telescope passed the most difficult stage fully open the heat shield, a five-tier umbrella measuring 20 by 14 meters – the size of a tennis court.

This equipment is necessary for observing space and is important for protecting scientific instruments from the heat of the sun and radiation emitted by the Earth and the Moon. Shortly thereafter, Webb achieved his goal. final configuration completing the “unrolling” of their mirrors two weeks after launch.

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