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Kenyan innovators turn e-waste to bio-robotic prosthetic

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David Gathu, left, and Moses Kiuna are self-taught Kenyan innovators who have built a bio-robotic prosthetic arm out of electronic scrap
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Two portraits of Albert Einstein hang on the walls of a makeshift laboratory on Nairobi’s outskirts, inspiring a pair of self-taught Kenyan innovators who have built a bio-robotic prosthetic arm out of electronic scrap.

Cousins Moses Kiuna, 29, and David Gathu, 30, created their first prosthetic arm in 2012, after their neighbour lost a limb in an industrial accident.

But their latest invention is a significant upgrade, according to the duo.

The device uses a headset receiver to pick up brain signals and convert them to an electric current, which is then sent to a transmitter that wirelessly relays commands to the arm, prompting it into action.

It all happens in less than two seconds.

“We saw people living with disabilities go through a lot of struggles and desired to make them… (feel) far more abled,” Gathu told AFP.

Kiuna said their first prosthetic arm, custom-made for the neighbour, had “helped him operate around the house on his own”.

The high cost of prosthetics means only one out of 10 people in need are able to access them globally, with the World Health Organization warning that such exclusion adds to the burden of disability.

“We noticed that Kenya imports prosthetics which are costly,” Kiuna told AFP. “So we asked ourselves, ‘How can we solve our own problems?”

– Recycling waste –

They found the answer in junkyards.

Since high school, the pair have been scouring dumping grounds around the Kenyan capital in search of discarded gadgets that they have repurposed to create over a dozen inventions.

Although conventional education did little to feed their curiosity, with Gathu dropping out of school at 17 and Kiuna quitting college a couple of years later, their appetite for learning has not dimmed.

The shelves in the bare-bones lab next to their grandmother’s house are stacked with science books and the sheet metal walls are covered with charts detailing human anatomy or the periodic table.

“We studied neurophysiology by reading books and sitting with doctors to explain concepts to us,” Gathu said, explaining how they came up with the prosthetic arm.

It is just one of the inventions conjured up by the cousins.

When Covid-19 struck, they built a device to sterilise banknotes using infrared technology, and later, a green-energy generator that converts oxygen into electricity, aimed at tackling climate change.

– ‘Drive the future’ –

“These two are proof that Africans can make a significant contribution to technology and science as we know it,” said Mukuria Mwangi, the founder of the Jasiri Mugumo school in Nairobi, which caters to youths up to 10-years-old.

Mwangi, who regularly invites Gathu and Kiuna to mentor children at the school, told AFP that Kenya’s education system did little to encourage innovation.

“Invention is not a discipline harnessed in our schools, yet innovation is what will drive the future,” Mwangi said.

Other challenges such as a lack of funds also prevent innovation from taking centre stage in the East African nation, as reflected by the number of inventions gathering dust in Gathu and Kiuna’s lab.

The pair hope to turn their prosthetic arm and other innovations into a thriving business.

“We have many other ideas that we can make viable commercially, but we lack finances and support,” Gathu said.

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‘Everybody is vulnerable’: Fake US school audio stokes AI alarm

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The fabricated audio clip of the Maryland school principal underscores the ease with which widely available AI and editing tools can be misused to impersonate celebrities and everyday citizens alike
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A fabricated audio clip of a US high school principal prompted a torrent of outrage, leaving him battling allegations of racism and anti-Semitism in a case that has sparked new alarm about AI manipulation.

Police charged a disgruntled staff member at the Maryland school with manufacturing the recording that surfaced in January — purportedly of principal Eric Eiswert ranting against Jews and “ungrateful Black kids” — using artificial intelligence.

The clip, which left administrators of Pikesville High School fielding a flood of angry calls and threats, underscores the ease with which widely available AI and editing tools can be misused to impersonate celebrities and everyday citizens alike.

In a year of major elections globally, including in the United States, the episode also demonstrates the perils of realistic deepfakes as the law plays catch-up.

“You need one image to put a person into a video, you need 30 seconds of audio to clone somebody’s voice,” Hany Farid, a digital forensics expert at the University of California, Berkeley, told AFP.

“There’s almost nothing you can do unless you hide under a rock.

“The threat vector has gone from the Joe Bidens and the Taylor Swifts of the world to high school principals, 15-year-olds, reporters, lawyers, bosses, grandmothers. Everybody is now vulnerable.”

After the official probe, the school’s athletic director, Dazhon Darien, 31, was arrested late last month over the clip.

Charging documents say staffers at Pikesville High School felt unsafe after the audio emerged. Teachers worried the campus was bugged with recording devices while abusive messages lit up Eiswert’s social media.

The “world would be a better place if you were on the other side of the dirt,” one X user wrote to Eiswert.

Eiswert, who did not respond to AFP’s request for comment, was placed on leave by the school and needed security at his home.

– ‘Damage’ – 

When the recording hit social media in January, boosted by a popular Instagram account whose posts drew thousands of comments, the crisis thrust the school into the national spotlight.

The audio was amplified by activist DeRay McKesson, who demanded Eiswert’s firing to his nearly one million followers on X. When the charges surfaced, he conceded he had been fooled.

“I continue to be concerned about the damage these actions have caused,” said Billy Burke, executive director of the union representing Eiswert, referring to the recording.

The manipulation comes as multiple US schools have struggled to contain AI-enabled deepfake pornography, leading to harassment of students amid a lack of federal legislation.

Scott Shellenberger, the Baltimore County state’s attorney, said in a press conference the Pikesville incident highlights the need to “bring the law up to date with the technology.”

His office is prosecuting Darien on four charges, including disturbing school activities.

– ‘A million principals’ –

Investigators tied the audio to the athletic director in part by connecting him to the email address that initially distributed it.

Police say the alleged smear-job came in retaliation for a probe Eiswert opened in December into whether Darien authorized an illegitimate payment to a coach who was also his roommate.

Darien made searches for AI tools via the school’s network before the audio came out, and he had been using “large language models,” according to the charging documents.

A University of Colorado professor who analyzed the audio for police concluded it “contained traces of AI-generated content with human editing after the fact.”

Investigators also consulted Farid, writing that the California expert found it was “manipulated, and multiple recordings were spliced together using unknown software.”

AI-generated content — and particularly audio, which experts say is particularly difficult to spot — sparked national alarm in January when a fake robocall posing as Biden urged New Hampshire residents not to vote in the state’s primary.

“It impacts everything from entire economies, to democracies, to the high school principal,” Farid said of the technology’s misuse.

Eiswert’s case has been a wake-up call in Pikesville, revealing how disinformation can roil even “a very tight-knit community,” said Parker Bratton, the school’s golf coach.

“There’s one president. There’s a million principals. People are like: ‘What does this mean for me? What are the potential consequences for me when someone just decides they want to end my career?'”

“We’re never going to be able to escape this story.”

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TikTok reaches music licensing deal with Universal, ending feud

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The Universal-TikTok deal ends closely watched negotations that saw a breakdown earlier this year as two of the most powerful players in the music and tech industries publicly criticized each other as they jockeyed for leverage
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TikTok and Universal announced a new licensing agreement Thursday, ending a months-long dispute that saw popular music expunged from the social media platform.

The companies released a joint statement that said the new deal included “improved remuneration” for artists and songwriters under the Universal Music Group (UMG) umbrella, and will also assuage concerns over the growth of AI-generated content on TikTok.

Universal chairman Sir Lucian Grainge said “this new chapter in our relationship” would “drive innovation in fan engagement while advancing social music monetization.” 

The deal “focuses on the value of music, the primacy of human artistry and the welfare of the creative community,” he said.

TikTok’s CEO Shou Chew similarly said “we are committed to working together to drive value, discovery and promotion for all of UMG’s amazing artists and songwriters, and deepen their ability to grow, connect and engage with the TikTok community.”

The deal wraps up closely watched negotiations that saw a breakdown earlier this year, with the companies — two of the most powerful players in the music and tech industries — publicly criticizing each other as they jockeyed for leverage.

Universal — whose roster of artists includes Taylor Swift, Drake and Billie Eilish — ordered music from all artists connected to its vast publishing catalog to come down off the app, leaving many concerned over losing the marketing potential TikTok can offer.

Millions of videos involving Universal artists became muted on the platform.

But while the stripped music will now return to TikTok, it comes at a moment of uncertainty for the wildly popular video-sharing app, one week after a new US law demands the company divest from its Chinese parent company ByteDance or be shut out of the American market.

The app has 170 million users in the United States alone.

Neither Universal nor TikTok disclosed any financial terms of the deal.

Several weeks ago, the powerful and popular Swift returned some of her music to the app ahead of the release of her most recent album.

It was unclear exactly how she did it, but Swift does own her own master recordings as well as her songwriting rights, though those two are administered by Universal’s publishing arm.

In their joint statement the companies said they were “working expeditiously to return music by artists represented by Universal Music Group and songwriters represented by Universal Music Publishing Group to TikTok in due course.”

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Changpeng Zhao, the ‘normal guy’ who conquered crypto

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Changpeng Zhao pleaded guilty to violating US anti-money laundering laws and agreed to step down as Binance CEO
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During his time at the helm of the world’s biggest cryptocurrency firm, former Binance boss Changpeng Zhao, who will be sentenced in the United States later Tuesday for money laundering, perfected the humble executive look.

At parties, on stages and in meetings, he was rarely seen without his black polo shirt, emblazoned with the insignia of his firm — complemented by the corporate logo tattooed on his arm.

It was vital to cement the myth of a boy who came from hardship in China and once flipped burgers for a living in Canada — before making a fortune still estimated in the tens of billions.

“I’m a small entrepreneur,” and a “normal guy”, the man known in crypto circles as “CZ” told AFP in 2022 when comparing himself to Elon Musk, whose buyout of Twitter (now X) Zhao later backed with $500 million.

Yet there was little normal about Zhao’s leadership of Binance, a company that largely cornered the crypto-trading market before careening into a slew of charges including sanctions busting and illegal trading. 

Zhao, who founded Binance in Shanghai in 2017, emerged as the most visible figure in crypto after his great rival Sam Bankman-Fried was arrested in 2022 for masterminding a giant Ponzi scheme.

During his rival’s downfall, Zhao was there to twist the knife, first suggesting he might buy FTX before very publicly withdrawing.

A year later, it was Zhao’s turn for contrition.

He pleaded guilty to violating US anti-money laundering laws and agreed to step down as Binance CEO, the authorities announcing later that the firm would pay a $4.3 billion settlement.

– True grit? –

The legal cases painted a picture of Zhao as a ruthless operator pursuing growth at all costs.

It was a far cry from the folksy legend he had fostered, which had become almost mythical in crypto circles.

Zhao’s early life in China was scarred by hardship when his parents were sent to the countryside for a dose of peasant reality — a common punishment for those suspected of having capitalist sympathies during the Cultural Revolution of the 1960s and 1970s.

They emigrated to Canada in the late 1980s, where young Zhao worked at a McDonald’s and a petrol station to help the family survive, according to his own account of his life and a blog from 2020 on the Binance website.

This instilled “drive, grit, and initiative” into the young man and helped to create a “crypto leader”, the Binance blog said.

Zhao’s nomadic childhood informed his adult life, which has seen him crop up everywhere from New York to Tokyo.

The official legend has it that he caught the bitcoin bug during a conversation around a poker table in Shanghai in 2013, starting Binance in the Chinese city a few years later.

Beijing’s crackdown on crypto hastened his departure from China and he began his voyage through various jurisdictions, establishing a raft of complicated corporate structures on his way.

For years, he kept regulators at arm’s length by refusing to commit to a single jurisdiction for Binance’s headquarters, repeatedly saying it was a “complex issue”.

The stance made him a popular figure among crypto purists who loathe any form of regulation.

– ‘Good old times’ –

But the whiff of scandal finally got too strong for US market regulators, who labelled Binance’s compliance regime a “sham” and accused Zhao of orchestrating a “secret plot” to help VIP customers evade the law.

Then the law enforcement authorities came knocking.

Among other complaints, they accused Binance of failing to stop payments to the Islamic State militant group and other banned organisations in Iran and North Korea.

Unlike Bankman-Fried, Zhao was quick to admit guilt and avoid a high-profile trial.

But prosecutors are asking the court in Seattle to dole out a three-year prison sentence to Zhao.

In response to his troubles, Zhao has fallen back on his everyman persona.

He launched a start-up in March called the Giggle Academy that he said would aim to bring free education to underprivileged children around the world.

“Start up mode all over again. Like good old times,” he wrote on X in early April, just weeks before he was due to be sentenced.

Among the subjects he is aiming to teach? Blockchain, AI and finance.

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