Nature, Published online: 20 July 2026; doi:10.1038/d41586-026-02231-y
Anticipating from the start the various ways a research programme can succeed or fail can avoid problems later. Here’s how to do it.Since riding Donald Trump’s coattails to power, Robert F. Kennedy Jr has taken his haphazard anti-vaccine views and enshrined them as a core tenet of US health policy.
According to 16 current and former health officials who spoke to Reuters, RFK Jr has taken much more drastic measures to push his anti-vaccine agenda than was previously known.
Speaking on condition of anonymity, two officials told the news agency that RFK approached National Institute of Health director Jay Bhattacharya earlier this year with a proposal to spend up to $5 billion in tax dollars to establish links between vaccines and autism.
As Reuters notes, that kind of spending would encompass ten percent of the NIH’s annual budget, a massive waste that would fly in the face of decades of established science showing vaccines definitively don’t cause autism.
“He’s an anti-vaccine activist. That’s who he is. That’s who he’s been for 20 years,” Paul Offit, director of the Vaccine Education Center at the Children’s Hospital of Philadelphia told Reuters. “To expect that as secretary of Health and Human Services he’d be anything other than that is wishful thinking.”
It certainly wouldn’t have been the first time RFK Jr attempted to twist the science to link vaccines with autism. Earlier this year, the US Department of Health and Human Services was caught spending $1.6 million funding a study on hepatitis B vaccines conducted by controversial Danish researchers Peter Aaby and Christine Stabell Benn.
Had the Africa Centres for Disease Control and Prevention — the public health arm of the Africa Union — not stepped in to stop the RFK-backed study, researchers would have withheld inoculations from thousands of newborn infants in Guinea-Bissau.
The situation drew notable comparisons to the Tuskegee Experiment, a highly unethical medical experiment that used hundreds of Black men as guinea pigs to study the long-term effects of syphilis. Despite the fact that effective treatment was available, nearly 400 men spent decades without treatment, suffering life-long consequences at the hands of manipulative researchers.
Though the Tuskegee Experiment may not have produced any medical breakthroughs or scientific discoveries, its cruel legacy seemingly lives on as inspiration for RFK and his HHS cronies.
More on RFK Jr: CDC Report on Vaccines and Autism Caught Citing Hallucinated Study That Does Not Exist
The post RFK Jr Wants to Waste $5 Billion in the Worst Way Imaginable appeared first on Futurism.
This week, Chinese equipment brand LiuGong officially launched its battery-electric equipment and material handling asset portfolio in the United States and Canada, making it easier than ever for construction and forestry crews to decarbonize their fleets.
Biological defenses make losing weight and keeping it off unusually difficult. Better treatments, healthier environments, and sustainable habits may support long-term health more effectively than willpower alone. For years, weight loss has been framed as a simple test of discipline: consume fewer calories and exercise more. Modern research, however, shows that body weight is regulated [...]Honda Automobile dealers will have to wait a little longer for a self-driving EV that seriously worry Tesla or GM – but Honda Power Equipment dealers are playing in a multibillion market, too, and they have an advanced, autonomous, and all-electric vehicle arriving right now.
A TV 3.0 (DTV+) já é uma realidade em algumas cidades brasileiras, mas o acesso à nova geração da televisão aberta ainda esbarra na necessidade de comprar um conversor. Para descobrir quando a Samsung vai vender Smart TVs com suporte nativo ao novo padrão, o Canaltech conversou com a marca.
A empresa sul-coreana afirmou que adota uma postura cautelosa em relação à integração da funcionalidade nas suas TVs.
"A Samsung informa que está monitorando o desenvolvimento da nova tecnologia e comunicará ao mercado, oportunamente, sobre os próximos passos da iniciativa”, pontuou a companhia.
A expectativa dos consumidores por aparelhos com recursos da TV 3.0 integrados já de fábrica se justifica pelo fato de o novo padrão prometer levar benefícios como interatividade e qualidade superior de imagem e áudio aos lares brasileiros.
Mas, por enquanto, apenas moradores das cidades de São Paulo, Rio de Janeiro e Brasília podem usufruir dos recursos da tecnologia. E essa experiência ainda depende da aquisição de conversores externos vendidos por marcas como Intelbras e Aquário, que são comercializados por valores acima de R$ 650.
Vale destacar que o cenário de espera destacado pela Samsung é seguido por outras marcas do setor, como LG e TCL, que também confirmam não haver datas oficiais para o lançamento de aparelhos que já cheguem às lojas com essa tecnologia integrada.
Essa estratégia das empresas está relacionada principalmente ao fato de que a adoção de um sistema inédito exige adaptações de hardware e software. Também é necessária a coordenação entre emissoras e fornecedores de tecnologia para integrar a infraestrutura aos receptores domésticos.
O governo federal ainda não concluiu todas as etapas que definem o funcionamento padrão da TV 3.0 no Brasil. Nesse contexto, televisores lançados neste momento poderiam ficar incompatíveis com futuras transmissões caso as especificações da tecnologia ainda sofram alterações durante o processo de padronização.
O próprio ministro das Comunicações, Frederico de Siqueira Filho, revelou que a TV 3.0 ainda passa por ajustes técnicos antes de ser expandida para outras cidades brasileiras. Segundo o chefe da pasta, essas adequações e obstáculos iniciais são normais por se tratar de uma transição que envolve uma tecnologia inovadora.
A principal proposta da nova geração da televisão aberta brasileira é trazer recursos interativos para as transmissões tradicionais. Na prática, o telespectador vai continuar assistindo aos canais já conhecidos gratuitamente, mas com uma interface mais fluida, que se assemelha às plataformas de streaming.
Um dos destaques fica por conta da possibilidade de comprar produtos relacionados à programação ao vivo diretamente pela TV, sem a necessidade de escanear QR Code para finalizar a aquisição. Votações em reality shows ou para escolher o melhor jogador de uma partida também podem ser feitas com o controle remoto.
O público também poderá escolher diferentes câmeras para acompanhar um evento esportivo ao vivo. Em partidas de futebol ou corridas de Fórmula 1, por exemplo, será possível acompanhar a transmissão principal na tela toda e assistir à programação em uma janela menor (Picture-in-Picture).
A TV 3.0 promete ainda entregar qualidades de áudio e imagem superiores ao sinal atual, oferecendo transmissões ao vivo com suporte à resolução 4K. O público terá até mesmo acesso a alertas automáticos sobre tempestades e inundações emitidos pela Defesa Civil local.
Com todas essas previsões de recursos, uma pergunta ainda pode passar pela cabeça dos espectadores: vai precisar de internet para acessar as funcionalidades da TV 3.0? O Canaltech entrou em contato com a Anatel para tirar essa dúvida.
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O Motorola Moto G Max chegou ao mercado brasileiro para representar mais um avanço na conhecida linha Moto G da marca. Para dar conta de uma rotina diária de uso, a fabricante equipou o dispositivo com uma bateria de 5.200 mAh que entrega boa autonomia, além de suporte a carregamento rápido de 33 W.
O Canaltech testou o celular em diferentes cenários para colocar sua bateria à prova e, a seguir, detalhamos os resultados de autonomia e tempo de recarga do smartphone.
Nosso teste padrão submeteu o aparelho a quatro horas consecutivas de reprodução de vídeo em alta resolução. Nesse cenário, o Moto G Max consumiu apenas 23% de sua carga total.
Esse rendimento indica que o celular consegue suportar cerca de 17 horas e 20 minutos de reprodução de vídeo até que a bateria se esgote por completo. Essa estimativa indica que o dispositivo pode ser uma boa alternativa para usuários que costumam consumir conteúdos do YouTube e de serviços de streaming no celular.
O Moto G Max também foi testado em cenários de uso moderado. Em uma rotina que envolveu acessar plataformas como Instagram, WhatsApp e recursos de IA, além do consumo de músicas e podcasts no Spotify, o celular alcançou autonomia para um dia inteiro, restando cerca de 20% de carga ao final do dia.
Ainda assim, usuários que também utilizam o smartphone para sessões de gameplay podem precisar conectá-lo à tomada antes do fim do dia. Isso porque jogos mais exigentes demandam um esforço maior do seu processador MediaTek Dimensity 6400, o que resulta em um consumo maior de energia.
Além do tempo que o aparelho pode ficar longe da tomada, outro fator importante é sua velocidade de carregamento. Nesse aspecto, o Moto G Max sai da caixa com suporte a carregamento rápido com fio de 33 W.
Nosso teste utilizou o carregador original do dispositivo e, nesse contexto, ele demorou cerca de 1h10 para sair de 0% e atingir a carga completa.
E você sabia que existem aparelhos que chegam às lojas com bateria de 10.000 mAh? Conheça 6 celulares com essa característica que desafiam a tomada.
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Fresh off a month that saw all but five states mired in severe drought, the US is reeling from multiple crises of national proportions.
First, there’s the record-breaking heat dome which is currently baking most of the continental US. According to the Guardian, over 100 million Americans are currently living under extreme heat warnings, forecasted to persist well into the weekend.
At the same time, the country is being smoked out by dozens of wildfires across North America, a situation the heat wave isn’t exactly helping. On top of that, smoke from over 800 blazes in Canada is helping choke out the US Midwest and North-East, making the air hazardous to breathe.
Things aren’t necessarily any prettier outside of the smoke-zone — just wetter. Communities situated around the Guadalupe River in Texas are reeling after near endless rainfall triggered massive floods across the state for the second year in a row.
So far, at least one person is dead, while thousands have been forced to evacuate. At least 57 counties representing over six million people were placed under flood watches over the past few days. With even more rain on the horizon, it remains to be seen when Texas will get relief from the torrential downfalls.
Stepping back, it’s clear this cascade of extremes isn’t happening in a vacuum. The overlapping wildfires, floods, and heat waves are all being amplified by the same climate forces: a rapidly warming planet, fueled in no small part by skyrocketing carbon emissions from the US itself.
All in all, it’s been an action-packed summer as the El Niño cycle rolls on — and unfortunately, the devastation is far from over.
More on climate disaster: Scientists Propose Dimming Sun to Combat El Niño
The post As Much of the East Coast Is Choking on Wildfire Smoke, Texas Is Drowning in Life-Threatening Floods appeared first on Futurism.
From the factories of Detroit to the postal warehouses in Shenzhen, a new kind of worker is clocking in — and the humans it’s replacing aren’t going down without a fight.
In late June, thousands of rank-and-file workers in the Korean Metal Workers’ Union voted to authorize a strike in response to Hyundai’s announcement it would deploy over 25,000 humanoid robots across its factories.
Weeks later, that strike is slowing production at a Hyundai factory down to a trickle. According to the Wall Street Journal, the workers began a partial strike after negotiations broke down last week. Starting on Monday, workers refused to work for four hours of each shift, leaving production lines stalled for half the work day.
Per the WSJ, the economic impacts of the strike are stark: the pullback could disrupt production of about 5,000 cars, and cut into Hyundai’s sales revenue by around $135 million. Should Hyundai choose to dig in their heels after the labor action, the union said it could escalate the strike, either by prolonging the length of the strike, upgrading it to a full strike, or both.
The mobilization appears to be the first of its kind over humanoid robotics, specifically, marking a pivotal moment in labor history. At issue is Hyundai’s threat to deploy thousands of “Atlas” model robots built by Boston Dynamics, bipedal humanoids that measure about 6’2″ in height and can lift a maximum of 110 pounds.
While the robots have yet to be deployed, union organizers explained that the strike is meant to give workers the power to renegotiate their contracts on their own terms, before the automation drive begins in earnest.
“We have to prepare to ensure there are safeguards in place,” secretary general of the KMWU and lead negotiator Byun Jun-hwan told the WSJ.
Specifically, the union’s demands include job security guarantees designed around AI and automation, larger bonuses that reflect Hyundai’s profit margin, a transition away from hourly wages to a fixed salary agreement, and a formal agreement allowing workers final say on any humanoid robotics deployment.
More on automation: AI Is Pushing Older Employees Straight Out of the Workforce, New Report Finds
The post Striking Workers Bring Car Factory to a Screeching Halt Over Humanoid Robots appeared first on Futurism.
Like a tornado descending from the heavens, data centers are tearing through homes across the US, roaring like a jet engine, leaving schools without power, and decimating entire communities unlucky enough to stand in their path.
Case in point, one Georgia family has been forced to sell their home, after the state utility concern decided it needed to build a new transmission line to connect new AI data centers.
As reported by CBS, the Brown family of Coweta County, Georgia decided to sell their home to Georgia Power, rather than risk seizure by eminent domain.
Ansley Brown, whose parents raised her in the home, told CBS, “it’s ours. It’s our family. We belong here.”
The Browns are just one of likely 300 landowners who will have their property seized so that Georgia Power — a for-profit, investor-owned corporation — can make a cozy home for the tech industry.
“To us it’s theft,” Browns’ mother told CBS. “It’s literally a billion-dollar company stealing land from smaller people, people who can’t fight back. We don’t have the money to fight Georgia Power.”
For its part, the utility company told CBS they “have worked hard to be transparent, negotiate in good faith,” and “make the process as easy as possible.”
The Browns, understandably, don’t see it that way.
“You can’t tear down 35 miles of rural Georgia and it not hurt something or somebody,” the mother said. “And to say that you’re doing it in the name of data centers is a slap in the face to us, our community, our animals.”
More on data centers: Massive Data Center Cooks Nearby Residents Alive Amidst Deadly Heatwave
The post Family Horrified When They’re Forced to Sell Their Beloved Home to Make Way for AI Data Centers appeared first on Futurism.
Look, dating in the 2020s sucks. The apps are bad, people are rude, and the etiquette of it all seems to be evolving at the speed of sound. Yet for all the downsides, there’s nothing that can’t be made 100 times worse with the addition of AI slop.
For better or worse, that’s exactly what Hinge founder Justin McLeod has in mind for his latest dating app, “Overtone.”
First spotted by TechCrunch, McLeod announced an $18 million round of funding on the company’s blog. While that’s a hefty chunk of change for any startup, confidence from venture capitalists isn’t exactly shocking considering the founder’s previous success. What really stands out about the blog, though, is that McLeod used the bulletin to vague-post about his grand vision for a new, AI-integrated dating app.
“Think about the most un-human parts of the dating app experience,” McLeod challenged: “writing personal ads for ourselves, judging each other in a split second based on photos, sorting through thousands of potential partners, and wrangling them through the precarious funnel of like to match to chat to date.”
“None of those steps exist because anyone wanted them,” McLeod’s pitch continues. “They exist because they were the best the technology could do.”
Like many, many startup founders before him, McLeod asserts that Overtone is “not a dating app,” but something different — in this case, a “service.” That may be a distinction without a difference, but it signals a sloppified shift in the founder’s approach.
While details remain scarce, we do know that Overtone is meant to be a “a voice- and audio-forward service, enabled by AI, that provides highly curated introductions.” What that means in practice is difficult to say. Will the app be manipulating voice messages meant for potential lovers? Does it connect people based on the information they give, or on the information generated by AI?
In his blog, McLeod provides few concrete clues as to what Overtone might encompass, though the app he envisions isn’t exactly inspiring.
“We get to know each person deeply, learning about them in their own voice, hearing their own unique story,” McLeod writes. “And we make only the introductions that are worth making, grounded in relationship science and thoughtful reflection. We transparently explain why we believe someone is a great match. And we leave it up to our daters to meet in person and discover chemistry, with guidance along the way.”
So, if you ever saw some AI-generated fruit slop and thought, “how can I integrate this into my dating life?” Overtone might be just the app for you.
More on AI startups: Startup Upset After Journalist Points Out How Creepy Its Humanoid Robots’s Hands Are
The post AI-Pilled Tech CEO Convinced He Has the Perfect Solution for Online Dating, Announces Harebrained App Idea appeared first on Futurism.
Despite a financial situation more reminiscent of a Ponzi scheme than a technological revolution, the data center boom is continuing at a rapid pace, bringing novel kinds of biological contamination, ear-splitting noise, and unprecedented levels of pollution to communities across the US.
Those environmental burdens also come with a financial one: skyrocketing demand for electricity, which is increasing the cost of utilities for renters and homeowners alike.
According to a report by Monitoring Analytics, an independent monitor for the largest transmission company in the US, PJM, data center demand is expected to drive over $23 billion in customer price increases by 2028. That eye-watering figure, first spotted by Fortune, is a direct result of the country’s old and confusing electrical infrastructure, which ultimately leaves regular people, not the tech industry, holding the bag.
Whether they’re data centers, factories, or other large facilities, Fortune points out that local regulators and transmission companies like PJM have a hard time figuring out who’s responsible for rising energy demand. While a small power line from a data center campus to a nearby substation is easily billed to the data center, figuring out who to invoice gets harder further on down the line, particularly with shared infrastructure like the substation itself, or the long-distance transmission lines connecting to it.
Though utility companies can and do charge data centers for the electricity they use, Fortune observes that the facilities undergirding the AI boom can “fine tune” their electricity use minute-by-minute, gaining an edge that the average consumer could only dream of.
Because many utility companies charge based on a system of “peak demand” — a measure of a customer’s energy usage at the exact moment the collective grid hits peak demand — data centers have gotten into the habit of scaling down right when the grid measures highest demand. That’s not because they’re actually trying to use less power, but because that narrow window is what determines how high their bill will be. In reality, their overall usage remains the same.
This is more or less the scenario that played out in a Bitcoin mining operation in Texas, where the company Riot Platforms agreed to cut its power use on hot summer days, only to ramp back up massively at night. In exchange, the company negotiated for a lower flat electricity rate overall, and even snagged some state subsidies meant to encourage responsible energy use.
Load-shifting like this can genuinely help the grid, but it also means companies with the ability to game the system get rewarded with subsides that an average household will never get. And because companies are merely changing when they suck their juice — not how — subsidized load-shifting ends up being a poor strategy for reducing electrical use overall.
And while data centers are just the most contemporary example of this practice, the shrewd manipulation of US energy markets by for-profit corporations dates back decades. That may not be comforting news for citizens scrambling to hold data center firms accountable in the here-and-now, but it should at least give them an idea of where to start looking for inspiration.
More on data centers: New York Becomes First State to Ban AI Data Centers
The post Data Centers Are Making Electricity Brutally Expensive for the Public appeared first on Futurism.
If you’re like me, you or a loved one has struggled through the process of gaining pre-approval for the medical care that your physician has recommended. Personal stories abound regarding the tribulations of patients as they go through hoops to get their health insurer to pay for certain prescription medications, medical procedures, and more.
When used judiciously, this process—known as prior authorization—serves as a check on overuse and spending on services or technologies for which there are less costly alternatives. But a large majority of physicians voice concerns about care delays, which can cause patients to abandon recommended treatments while waiting for the insurance company to verify their eligibility and confirm that the treatment is, indeed, medically necessary. Patients who are denied care may submit an appeal, but that requires more time.
AI might be able to help. With its ability to efficiently sort through vast reams of information, artificial intelligence could theoretically expedite approval of unambiguously allowable claims, thereby reducing care delays. However, AI-driven prior authorization is facing resistance, as it may increase wrongful denials of health insurance coverage. A 2025 American Medical Association survey of physicians revealed significant concern about the application of AI tools, with 61 percent of doctors worrying that AI will exacerbate denials of what they deem are necessary treatments.
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The next time you’re checking into a hospital, it’s possible that your nurse may actually be 8,000 miles away.
That’s the reality at a growing number of hospitals throughout the US and the world, which are turning to low-paid telehealth workers in the Philippines to help fill in the duty roster. As it is for remote driving and AI data labeling, the Philippines has become a wellspring of cheap labor for transnational healthcare companies, which are more than happy to exploit a country where millions of people live in poverty.
Stunning reporting by Rest of World detailed the lives of some of the 210,000 full-time Filipino workers employed in remote healthcare. This new class of workers makes up for a massive shortage of almost 80,000 registered nurses in the US.
One of the workers, Alice, is a licensed nurse working in Quezon City, a city of three million people in the Philippines. In 2019, she signed on with a telehealth company providing mental health and substance abuse treatment to US-based patients in California and New Mexico. Alice told RoW she earns $5 an hour, five times as much as the hospital job she left behind.
“We have this virtual clinic that functions like a lobby where patients check in,” Alice explained, “and then we traffic or triage them and send them to each of the providers’ personal Zoom room.”
To get a job communing with US patients through a screen, a Filipino worker simply needs to have a medical degree — it doesn’t matter what kind. While it’s likely that many telehealth recruits come from healthcare administration backgrounds, RoW notes that about 30 percent of the people employed in these jobs are trained nurses or other medical professionals.
The result is a scenario where tens of thousands of healthcare workers are physically present in their communities, but spend their days caring for patients half a world away in a desperate bid to pay the bills. Already facing a mounting shortage of trained healthcare professionals, the Filipino people have watched as telehealth corporations court the remaining hospital workers to oversee care for patients in the US.
“If they can’t go abroad, remote nursing is the next best thing because local wages are so low,” Nico Uba, secretary general of the group Filipino Nurses United told RoW. “Then local hospitals are left understaffed and overworked.”
The companies running this insidious scheme prey on two sets of healthcare workers on opposite ends of the world: the underpaid Filipino, for whom a wage of $5 an hour is much higher than the national average, and the overworked American, for whom a 50-hour work week is practically a vacation.
The remote healthcare industry is well aware of this tension, and is happy to take advantage. As JL Botor, president of the Healthcare Information Management Association of the Philippines told RoW, US hospitals can save up to 70 percent of their overhead costs by hiring Filipino workers instead.
In all, Botor notes that the country is a “clinical process outsourcing powerhouse,” as well as “a premier global hub for supporting overstressed international healthcare systems.”
More on healthcare: Lawsuit Claims the Mayo Clinic’s Use of AI Is Butchering Patient Care
The post US Hospitals Are Outsourcing In-Person Nursing to Remote Health Workers in the Philippines appeared first on Futurism.
After the sedan version launched last month, the new BMW i3 Touring was captured for the first time with its wagon tail on display.
When Donald Trump, Elon Musk and the DOGE boys started snipping wires across DC, they took out critical programs like the government’s premier climate research website and the hurricane-hunter aircraft gathering data on dangerous storms.
While they were at it, the Trump administration also ripped up a project that would have vastly improved the country’s ability to monitor wildfires. The GeoXO program was a project originally encompassing six satellites that would greatly improve the resolution available to the National Oceanic and Atmospheric Administration to monitor atmospheric conditions like wildfire smoke, as well as weather events like lightning strikes, and climate observations such as color changes in the ocean’s surface.
The six satellites were meant to encompass three regions split between the US West, Central, and East. Starting in April 2025, however, the Trump administration directed the NOAA to make drastic cuts to GeoXO. These included cutting two satellites from the mission altogether — scrapping the central observation region entirely — and canceling major contracts for existing GeoXO instruments. The purported goal was to refocus the program on a “core weather mission,” as opposed to long-term climate monitoring, following the administration’s broader attacks on any effort to mitigate or even mention climate change.
One of those cancelled instruments, the GeoXO Atmospheric Composition device, was a high-resolution spectrometer designed to give the NOAA advanced capabilities to monitor air pollutants, like ozone, nitrogen dioxide, formaldehyde, and excess particulate matter. In the long term, the tool would have helped scientists paint a clearer picture of how particular weather events relate to broader climate shifts, an NOAA report explains.
Of course, the timing of the cancellation couldn’t have been worse. Huge swaths of the United States and Canada are currently being smoked out by noxious fumes emanating from hundreds of wildfires across North America.
Though the GeoXO program wouldn’t have gone live until the 2030s, Trump’s decision represents a devastating loss for our future ability to monitor this exact phenomenon, which is becoming something of an annual tradition for millions of people.
As Susan Anenberg, chair of environmental and occupational health at George Washington University observed, the NOAA “had spent years planning an air pollution instrument on the GeoXO satellite which would provide near-real-time, location-specific data on smoke levels, giving people the information they need to avoid exposure.”
Anenberg explained that the public health benefits this kind of monitoring would provide “could amount to about $13 billion per year.”
“As smoke events happen more often,” Anenberg continued, “we need more data, not less.”
More on Trump: Prices Already Spiking at Trump’s Mysterious Gas Stations That Promised Cheap Fuel
The post Trump Decimated a Satellite Program That Would’ve Vastly Improved Wildfire Smoke Monitoring appeared first on Futurism.
Usar uma capinha reforçada para proteger o iPhone é uma prática comum e altamente recomendada para aumentar a proteção do aparelho. Mas será que a utilização desse acessório pode ter efeitos colaterais e estragar a bateria do dispositivo? O Canaltech consultou documentos da Apple para tirar essa dúvida.
A gigante de Cupertino cita as capinhas protetoras em ao menos dois documentos relacionados aos seus celulares. Em ambos os casos, a companhia relaciona o uso de alguns modelos de capa ao risco de acúmulo excessivo de calor no aparelho, o que pode afetar a saúde da bateria a longo prazo.
Esse processo é especialmente nocivo para as baterias de íon de lítio, que equipam os iPhones e boa parte dos demais smartphones. Isso porque essas células de energia funcionam adequadamente dentro de uma determinada faixa de temperatura, mas tendem a ser impactadas quando esse limite é ultrapassado com frequência.
A explicação por trás dos riscos que envolvem capinhas grossas começa pelo fato de que a bateria do celular gera calor naturalmente durante o carregamento. Trata-se de um resultado das perdas elétricas do próprio circuito de carga e das reações eletroquímicas envolvidas na conversão de energia, algo que, por si só, não representa risco ao aparelho.
Os problemas começam a aparecer quando esse calor não consegue ser dissipado. Nesse cenário, um acessório protetor muito espesso pode atuar como uma camada isolante ao redor do dispositivo, aumentando a resistência térmica entre o iPhone e o ambiente e dificultando a troca de calor que aconteceria naturalmente.
Esse é o chamado abafamento térmico, que pode fazer com que o sistema reduza automaticamente a velocidade de carregamento para controlar a temperatura do aparelho. E quanto mais tempo a temperatura interna permanece elevada, maior a chance de acelerar o desgaste da bateria.
No caso das baterias de íon de lítio, o cenário demanda ainda mais atenção, já que esse tipo de componente é sensível à exposição frequente a temperaturas elevadas. Em outras palavras, expor a bateria constantemente ao calor acelera as reações químicas internas que degradam sua capacidade de armazenamento de energia.
Esse processo se repete a cada ciclo de recarga do dispositivo e resulta na redução da vida útil da bateria quando ocorre repetidamente ao longo do tempo.
Diante desses riscos, a Apple traz orientações sobre a recarga dos seus celulares em materiais oficiais. Em uma página dedicada às baterias dos seus aparelhos, a companhia afirma que carregar o iPhone dentro de determinados estilos de capa pode gerar calor excessivo.
A empresa explica que essa prática pode comprometer a capacidade da bateria e orienta seus clientes a retirar o acessório caso percebam que o dispositivo esteja esquentando durante a recarga.
A mesma página reforça que a faixa ideal de temperatura ambiente para o funcionamento dos seus aparelhos fica entre 16°C e 22°C. A empresa pontua ainda que ambientes acima de 35°C podem causar danos permanentes à capacidade da bateria de seus eletrônicos.
Outro guia da empresa, esse dedicado a explicar o carregamento com limitação térmica do iPhone, detalha o sistema de proteção do aparelho. A companhia destaca que o celular foi projetado para reduzir automaticamente a velocidade de carregamento em temperaturas muito altas ou muito baixas, a fim de proteger a bateria.
Esse material também recomenda remover a capa protetora do iPhone caso o aparelho costume aquecer durante o processo de carregamento.
Vale ressaltar que o risco associado ao uso de capinhas reforçadas durante o carregamento está relacionado principalmente a aparelhos que já esquentam com frequência e continuam sendo carregados com esse tipo de acessório.
Nesses casos, além de retirar a capa, vale colocar o aparelho sobre uma superfície plana e bem ventilada até que a recarga seja finalizada.
Ainda assim, usuários que não perceberem o superaquecimento do iPhone durante o processo de recarga não precisam, obrigatoriamente, remover o acessório de proteção para carregar a bateria.
Falando em carregamento, você é do time que dorme com o celular conectado ao carregador e embaixo do travesseiro? O Canaltech consultou um especialista para saber se essa prática pode causar a explosão do smartphone.
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Toyota’s new bZ electric SUV is nearly outselling the Prius this year. With an extra $3,000 off if you trade in your old EV in California, it might be worth checking out.
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