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James Webb telescope: a scientist explains what its first, amazing images show – and how it will change astronomy

James Webb telescope: a scientist explains what its first, amazing images show – and how it will change astronomy

AFTER decades of development and many trials and frustrations along the way, the James Webb telescope has finally started to deliver what it came for. On July 12, Nasa released the first scientific observations made by the suite of instruments carried on board the mission, marking what we eagerly anticipate will be the beginning of a new era in astronomy. Author MARTIN BARSTOW, Professor of Astrophysics and Space Science, University of Leicester After the nail-biting launch on Christmas Day, a series of critical deployments followed to open up the telescope and its sun-shade. If any of these operations had failed,…
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Flies, maggots and methamphetamine: how insects can reveal drugs and poisons at crime scenes

Flies, maggots and methamphetamine: how insects can reveal drugs and poisons at crime scenes

THE oldest book of zoology was published on clay tablets more than 3,600 years ago and reported the names of 396 types of wild animals known at the time. Ten of them were different kinds of fly. Author PAOLA MAGNI, Senior Lecturer in Forensic Science, Murdoch University Flies have lived alongside humans since the dawn of history, feeding on our bodily fluids and other organic waste such as meat and vegetable scraps. When an adult female blowfly finds some juicy decaying material – typically a carcass – she may lay hundreds of eggs or tiny maggots in it. So flies…
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Kenya’s Cellulant targets 50,000 new merchants, boosts war chest

Kenya’s Cellulant targets 50,000 new merchants, boosts war chest

DUNCAN MIRIRI KENYAN digital payments company Cellulant plans to shift its focus to small and medium enterprises with the aim of turbo-charging its merchant acquisition growth to 50,000 this year from the current rate of about 1,000, its chief executive told Reuters. Investors have been flocking into African financial technology firms due to rapid growth in services like cash transfers between bank accounts and mobile phone wallets. read more Cellulant, which has previously raised funds from investors like Velocity Capital and TPG's Rise Fund, is in the middle of a $100 million Series D fundraising round, partly to finance the shift…
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Africa’s programmers are hot property

Africa’s programmers are hot property

CONRAD ONYANGO, BIRD STORY AGENCY FOUR out of every ten African software developers now work for at least one company based outside of the continent, while five work for local start-ups, according to recent research, highlighting the dynamic and growing market for the continent's technical talent over the last two years. A 22 percent rise in the use of the internet by small and medium-sized businesses in Africa, a record fundraising streak by local startups in 2021 and demand for remote tech workers in more mature markets are all factors attributed to the rising awareness of Africa's software development talent.…
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Ukraine crisis highlights Big Tech’s potential to disrupt daily life

Ukraine crisis highlights Big Tech’s potential to disrupt daily life

DAVID SHERFINSKI AS Russians lose access to some popular Big Tech products, the Ukraine crisis has highlighted the companies' mushrooming role in everyday life worldwide - and their potential to disrupt it. The availability of some Google and Apple products and services in Russia has been cut in recent days as international sanctions imposed on Moscow over last week's invasion have added to political pressure for the companies to act. Highlighting the potential for disruption when Big Tech services are shut down, a viral image this week showed commuters packed into a Moscow metro station foyer as the city's transport department warned…
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Twitter launches competition to find biases in its image-cropping algorithm

Twitter launches competition to find biases in its image-cropping algorithm

TWITTER Inc said it will launch a competition for computer researchers and hackers to identify biases in its image-cropping algorithm after a group of researchers previously found the algorithm tended to exclude Black people and men. The competition is part of a wider effort across the tech industry to ensure artificial intelligence technologies act ethically. The social networking company said in a blog post that the bounty competition was aimed at identifying "potential harms of this algorithm beyond what we identified ourselves." Following criticism last year about image previews in posts excluding Black people's faces, the company said in May…
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‘Frugal design’ brings medical innovations to communities that lack resources during the pandemic

‘Frugal design’ brings medical innovations to communities that lack resources during the pandemic

DR. Msandeni Chiume Kayuni found herself in the middle of a supply crisis as COVID-19 spread to Africa in April 2020. As head of Pediatrics at Kamuzu Central Hospital in Lilongwe, Malawi, her team faced a critical shortage of N95 and regular surgical face masks. Nurses and doctors were striking. REBECCA RICHARDS-KORTUM, Professor of Bioengineering, Rice University THERESA MKANDAWIRE, Associate Professor of Civil Engineering, University of Malawi “We had members of hospital staff put their tools down because they did not feel it was safe to practice,” she told us in an interview. Ingenuity kicked in. The Malawi team purchased…
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Satellite alerts seen helping fight deforestation in Africa

Satellite alerts seen helping fight deforestation in Africa

SONIA ELKS A system using satellite data to send free alerts when trees are destroyed has been linked to a significant drop in forest losses in Africa, researchers and academics said on Monday. Deforestation dropped by an average of 18% across nine central African countries after the alerts were introduced, found a study published in the journal Nature Climate Change. "This is really a small revolution," said study lead Fanny Moffette, a postdoctoral researcher at the University of Wisconsin-Madison. "Now that we know subscribers of alerts can have an effect on deforestation, there's potential ways in which our work can…
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Signal sees meteoric rise in daily installs as people look for WhatsApp alternatives

Signal sees meteoric rise in daily installs as people look for WhatsApp alternatives

THE number of new users installing messaging app Signal every day is on track to cross 1 million, putting it closer to levels seen by larger rival WhatsApp, following an update to the Facebook Inc-owned app's privacy policy. About 810,000 users globally installed Signal on Sunday, nearly 18-fold compared with the download numbers on Jan. 6, the day WhatsApp updated its privacy terms, according to data from research firm Apptopia. WhatsApp's new privacy terms reserve the right to share user data, including location and phone number, with its parent Facebook Inc and units such as Instagram and Messenger. Privacy advocates…
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Email scams are getting more personal – they even fool cybersecurity experts

Email scams are getting more personal – they even fool cybersecurity experts

WE all like to think we’re immune to scams. We scoff at emails from an unknown sender offering us £2 million, in exchange for our bank details. But the game has changed and con artists have developed new, chilling tactics. They are taking the personal approach and scouring the internet for all the details they can find about us. Scammers are getting so good at it that even cybersecurity experts are taken in. One of us (Oliver Buckley) recalls that in 2018 he received an email from the pro-vice chancellor of his university. This is it, I thought. I’m finally…
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