Bionic leaf creates its own fertiliser to fuel new ‘green revolution’

Researchers have invented a new bionic leaf that uses bacteria, sunlight, water and air to make fertilizer in the very soil where crops are grown. It is hoped that the leaf will be able to serve a vital role in kickstarting a new ‘green revolution’ like that of the mid-20th century.

The first green revolution saw a massive increase in the use of fertiliser on new wheat and rice varieties, helping to double agricultural production. Though far from a perfect solution – the  increased use resulted in serious environmental damage – the United Nations (UN) Food and Agriculture Organization have said that the move quite possibly saved millions of lives.

However, while it served at the time, a new green revolution is required. With the world’s population expected to grow by another 2 billion by 2050, a solution to boost production without having to clear masses more land for farming is urgently required.

A multi-pronged approach will be necessary, but the bionic leaf could play a vital role.

“When you have a large centralised process and a massive infrastructure, you can easily make and deliver fertiliser,” said Dr Daniel Nocera.

“But if I said that now you’ve got to do it in a village in India onsite with dirty water — forget it. Poorer countries in the emerging world don’t always have the resources to do this. We should be thinking of a distributed system because that’s where it’s really needed.”

Nocera is known for his previous work on artificial leaves turning sunlight into liquid fuel, which we reported on here, and is now looking to turn that expertise towards the creation of fertiliser.

Previous iterations of the leaf, when exposed to sunlight, paired a water-splitting catalyst with the bacteria Ralstonia eutropha, which consumes hydrogen and takes carbon dioxide out of the air to make liquid fuel.

Radishes grown with the self-fertilising bionic leaf, right, alongside those grown with conventional methods. Image courtesy of Nocera lab, Harvard University

Last June, Nocera’s bionic leaf even reached the point of providing biomass and liquid fuel yields that greatly exceeded those from natural photosynthesis. Now, by using Xanthobacter bacteria, the leaf can fix hydrogen from itself and carbon dioxide from the atmosphere to make a bioplastic that the bacteria store inside themselves as fuel.

“I can then put the bug in the soil because it has already used the sunlight to make the bioplastic,” Nocera explained. “Then the bug pulls nitrogen from the air and uses the bioplastic, which is basically stored hydrogen, to drive the fixation cycle to make ammonia for fertilising crops.”

The research team have already tested the ammonia production of the system but have found real proof in growing radishes. Using the system to grow five crop cycles, they found that the vegetables receiving the bionic-leaf-derived fertilizer weigh 150 percent more than the control crops.

With this success behind them, Nocera has said that the next step is boosting throughput to get to the point where farmers in locations such as India or sub-Saharan Africa can produce their own fertiliser.

Oxford University develops new 3D bioprinter

University of Oxford scientists have developed a new method for 3D printing laboratory-grown cells to form living structures. The new method enables the production of complex tissues and cartilage that can potentially support, repair and augment diseased and damaged areas of the body.

Google spinoff patents flexible cars that protect pedestrians

Waymo has patented a car design that is capable of becoming flexible or rigid depending on need, so if sensors detect the vehicle is about to hit another object the car would change accordingly. If it’s another car, the car could turn stiff; if it’s a human, the car could loosen up and soften its impact.

Source: The Verge

Researcher who killed WannaCry denies writing banking malware

Marcus Hutchins, the British security researcher credited with halting the virulent WannaCry ransomware worm that shut down computers worldwide in May, pleaded not guilty to unrelated charges that he created and distributed malware that steals banking credentials.

Source: Ars Technica

Record-sized data centre to be built inside Arctic Circle

US-Norwegian firm Kolos has revealed plans to build the world's largest data centre in the town of Ballangen, inside the Arctic Circle. The centre will cover 600,000 square metres over four stories, and would eventually draw on over 1,000MW of power.

Source: BBC

AI bot competes in e-sports tournament and wins

A bot from Elon Musk's artificial intelligence company OpenAI has beaten one of the world's best players of the e-sports video game "Dota 2". OpenAI's bot won a 1v1 match, but the company says it hopes to have it ready to compete in a five-on-five match next year.

Scientists solve the mystery of the "Frankenstein dinosaur"

Scientists have solved the puzzle of the so-called "Frankenstein dinosaur", which seems to consist of body parts from unrelated species. A new study suggests that it is in fact the missing link between plant-eating dinosaurs and carnivorous dinosaurs.

Source: BBC

Steve “Woz” Wozniak to advise hologram emoji company that he calls “groundbreaking”

Apple’s co-founder Steve “Woz” Wozniak has found himself a new gig; Woz has joined the hologram emoji company, Mojiit, as an adviser.

In his role as advisor to Mojiit, the legendary entrepreneur and engineer will help assemble a world-class engineering team in addition to bringing investors and partnerships to the newly launched startup. Wozniak will also serve as mentor to Mojiit founder, Jeremy Greene.

“I’m thrilled to join Mojiit as an advisor,” said Wozniak. “Jeremy is a natural leader, the company is groundbreaking, it’s going to change the ecommerce space, and it’s a lot of fun.”

Created in 2017, Mojiit is the latest startup technology venture from Greene. The company’s tech essentially enables users to project and share 3D hologram emojis via smartphones.

The platform turns users into emojis by scanning their face, which can then be sent to loved ones and friends. Once a Mojiit message is received, it will map the area where it is received and place the Mojiit hologram there in real time, so it works in a similar way to Pokemon Go.

“Steve is one of the best and brilliant engineers in the entire world. But outside of that, he’s a wonderful man,” said Greene. “There isn’t anyone I’d want to be in business with more than this guy. He’s a legend. Who better to learn from than the guy who created the computer?”

Image courtesy of Nichollas Harrison. Featured image courtesy of Mojiit

In addition to consumer use, businesses of all kinds can tap into hologram emojis with Mojiit’s technology.

Mojiit investors already  include NFL alum Ed Reed, and the company was able to raise a total of $1 million in its seed round of funding.

Alongside the appointment of Woz, Entourage and Ballers producer Rob Weiss recently joined the company as a creative director.

“It’s exciting to expand beyond television and film to digital platforms,” said Weiss. “Hologram technology brings incredible opportunity to entertainment and media. I’m thrilled to be leading creative at Mojiit.”