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• How to Help Tornado Victims
• How to Season Turkey Burgers
• How to Use Activated Charcoal for Teeth Whitening

How to Help Tornado Victims Posted: 01 Jul 2019 01:00 AM PDT Tornadoes are devastating storms that can have long-lasting consequences for victims and their communities. While tornadoes can happen almost anywhere in the world, they are most common in the central U.S., where they tend to peak during the early summer months.[1] Help tornado victims and their communities by donating to disaster relief organizations in their area, or look for ways to volunteer with the relief effort. You can also help individual friends or family members by offering financial, practical, and emotional support. EditSteps EditWorking with Disaster Relief Organizations Focus on working with local organizations to help most directly. One of the most effective ways to help tornado victims is to donate to local disaster relief organizations. Local organizations are familiar with the community and what resources are already available locally. They are also motivated to help their local community by making sure that any resources donated to them are put to good use. Do a search online for relief organizations in the affected area. For example, if you're interested in helping victims of the recent tornado in Moore, Oklahoma, you might contact the Regional Food Bank of Oklahoma or Oklahoma Voluntary Organizations Active in Disaster (VOAD).[2] Check with other types of organizations in the area that may be helping. In the wake of a disaster like a tornado, many different kinds of local organizations will often step up to help. Check with non-disaster-relief organizations in the area, such as schools, libraries, homeless shelters, animal shelters, food banks, churches, and social service organizations to find out what they are doing and how you can get involved. For example, in the wake of the recent Lee County tornado in Alabama, churches, grocery stores, schools, and animal shelters in the area gathered donations of supplies and money for the community.[3] Check the websites of local news outlets to find out where you can donate. Look for national disaster relief networks that offer local aid. Many national disaster relief organizations have local branches that can provide direct help on the community level. Research reputable national disaster relief networks and see if there are any local branches in the affected area. For example, Direct Relief, an organization that focuses on providing medical assistance to communities in need, works with local groups to provide critical supplies after tornadoes and other disasters.[4] Feeding America works with community food banks across the U.S. The Red Cross also has local branches in communities all over the world. Research charities before you work with them. Before you donate to any charitable or relief organization, look them up through a watchdog organization to find out if they are reputable. Do a search for the organization you're interested in online and look for reviews and ratings from groups such as:[5] CharityNavigator CharityWatch GuideStar The Better Business Bureau Wise Giving Alliance Give money if you can. In the wake of a disaster, people need a wide variety of different types of assistance. They may need goods, shelter, medical care, or food. When you donate money to disaster relief organizations or charities, they can figure out how to use your contribution in the most effective and efficient way possible. If possible, donate money rather than goods unless an organization is specifically asking for material donations.[6] Monetary donations allow rescue organizations to purchase goods locally without having to worry about shipping costs and quality control checks. They can also tailor their purchases to the exact needs of members of the community. For example, after the tornado that recently hit El Reno, Oklahoma, the local Veterans of Foreign Wars (VFW) branch is looking for donations of cash and gift cards to help residents purchase food, gas, and other necessities.[7] The Regional Food Bank of Oklahoma also reached out for cash donations (as opposed to donations of food or supplies) after the Moore tornado.[8] Donate items only if they are needed. Donating goods, such as clothing and canned foods, can also be helpful in the wake of a tornado. However, first check with the organization(s) you're working with to find out exactly what is needed. Otherwise, aid organizations can end up overwhelmed with material donations that they are unable to use.[9] Call the organization you'd like to donate to or check their website to find out what kinds of donations they are taking. Ask about ways to volunteer. As an alternative to donating money or goods, you may also be able to volunteer your time. Contact rescue organizations in the affected area and find out what kinds of help they need. You can also reach out to National Voluntary Organizations Active in Disaster (NVOAD) at https://www.nvoad.org/ to find volunteer opportunities.[10] Don't jump in and try to help with search and rescue efforts or other potentially dangerous activities on your own. It's important to work with an existing volunteer organization that has already identified safe and effective ways to help out.[11] Ways to volunteer may include making calls for donations, cooking meals for survivors, delivering supplies, or getting involved in search and rescue operations. EditSupporting Individual Tornado Victims Try to contact friends and family affected by the tornado. If you know someone who's been affected by a tornado, try to get in touch with them as soon as possible to find out if they are okay and what they need. You may be able to contact them by phone or over their social media accounts, but if not, there are a variety of resources that can help:[12] Try calling local law enforcement to see if they have information about your loved one. Check the American Red Cross Safe and Well System and search for people you know who may have been affected: https://safeandwell.communityos.org/cms/index.php. Search for your loved ones using FEMA's National Emergency Family Registry and Locator System: https://www.fema.gov/national-emergency-family-registry-and-locator-system-fact-sheet. Call 1-800-843-5678 (1-800-THE-LOST) for help locating missing children, or visit the Unaccompanied Minors Registry here: https://umr.missingkids.org/umr/reportUMR?execution=e2s1. Give financial support if you can. In addition to dealing with the immediate trauma and damage caused by the tornado, many victims find themselves in severe financial difficulty long after the disaster is over. If you want to help someone affected by a tornado, consider helping them out with a little money if you are able to do so. If you can't give much money yourself, look into starting a crowdfunding campaign to help your loved one meet their needs. For example, you might start a fund on GoFundMe.com or GiveForward.com to raise money for a loved one's medical expenses if they were injured in the tornado.[13] You can also help connect them with disaster-related financial assistance resources, like the U.S. government's disaster relief program at DisasterAssistance.gov. Offer shelter if you're able to. Tornadoes can cause devastating damage to people's property, destroying homes, leaving large areas flooded or without power or water, or creating hazards such as downed powerlines and structural instability.[14] If you know someone who's been left homeless after a tornado or needs a place to stay while repairs are being done, consider taking them in for a while. If you can't provide shelter yourself, you may be able to help connect survivors with temporary shelter options in their area. For example, in the U.S., you can text SHELTER and the person's zip code to 43362 (4FEMA) to find nearby options.[15] Help them replace lost items. After a tornado, your friends or loved ones may be faced with the task of replacing some or all of their furniture and appliances. Ask them which items they need and whether you can help by purchasing some of those items for them. Work with them to create an online wish list so that you and other friends or relatives can purchase the specific items they need based on the list. Be emotionally supportive. The emotional aftermath of a tornado or other natural disaster can be devastating. In addition to needing practical help, many tornado victims will need emotional support to help them cope with the stress of what they've been through.[16] Reach out to loved ones affected by the tornado and let them know you are there if they need to talk. Common signs of disaster-related distress include feelings of anxiety, fear, disbelief, or emotional numbness, difficulty concentrating, changes in energy or activity levels, and difficulty sleeping. Some people also have physical symptoms such as headaches, body pains, and indigestion. If someone you know is experiencing an emotional or mental health crisis after a tornado, call the Substance Abuse and Mental Health Services Administration's Disaster Distress hotline at 1-800-985-5990 or text TalkWithUs to 66746. EditReferences Cite error: <ref> tags exist, but no <references/> tag was found

How to Season Turkey Burgers Posted: 30 Jun 2019 05:00 PM PDT Substituting poultry without the skin for red meat is good way to reduce the amount of saturated fat in your meal and can be part of a heart-healthy diet. [1] For example, you can use ground turkey in place of ground beef when making burgers. Keep in mind that because turkey has less fat than beef, an unseasoned turkey burger will be bland and dry. Season your turkey burgers with dry seasonings or additional ingredients for a delicious, juicy burger. EditSteps EditUsing Dry Seasonings to Add Flavor Mix cumin with turkey before forming patties for a smoky flavor. Cumin works well with Mexican, North African, Indian, and Middle Eastern flavor profiles.[2] Use 1 teaspoon (2.5 grams) dried cumin for of ground turkey.[3] Combine chili powder with turkey before forming patties to add heat. Chili powder pairs best with Latin American flavors. Mix ½ teaspoon (1.5 grams) chili powder with of ground turkey.[4] Chile powder is a blend of spices including ancho chile powder, paprika, cumin, and Mexican oregano.[5] Mix thyme into turkey before forming patties for a bright taste. Turkey's neutral taste means that it can allow other flavors to shine, and thyme pairs well with a Mediterranean flavor profile. Use 1 teaspoon (1.5 grams) of dried thyme for of ground turkey.[6] Add salt and pepper to turkey before forming patties. A simple seasoning of salt and pepper works with any flavor profile and is the best choice if you want the burger toppings to be the focus. Use ½ teaspoon (3 grams) and ½ teaspoon of pepper (1 gram) for of ground turkey.[7] Use seasoning salt or lemon pepper for extra flavor.[8] EditAdding Other Foods to Improve Flavor and Texture Mix eggplant with turkey before preparing patties for a meaty flavor. To prepare the eggplant, roast it at for 30 minutes. Allow to cool and scrape the flesh from the skin, and then chop finely to make a puree.[9] Use one small eggplant, about , for each of turkey.[10] Mix ricotta cheese with turkey before forming patties. Ricotta cheese will add a mild flavor and moisture without a lot of extra fat.[11] Use ½ cup (124 grams) whole-milk ricotta cheese for of ground turkey.[12] Combine ketchup and turkey before forming patties for a classic flavor. This works best if you are planning to add toppings like onions, lettuce, mustard, and more ketchup. Use 2 tablespoons (34 grams) of ketchup for of ground turkey.[13] Mix Dijon mustard with turkey before forming patties for a bold flavor. Since Dijon is sharper and spicier than yellow mustard, its flavor will hold up better when cooked.[14]. Use 1 tablespoon (18 grams) mustard for of ground turkey.[15] Add onion to turkey before forming patties for a diner-style burger. This is best if you're planning to serve the burgers with toppings like ketchup, mustard, and pickles. For of ground turkey, grate half of a medium onion.[16] Mix shredded cheese with turkey before forming patties. The pockets of cheese in the burger patty give it a juicier interior and a crunchy crust. Use of a mild cheese like Monterey Jack per of ground turkey.[17] For a bolder, cheese-forward burger, try stronger cheeses like sharp cheddar and pepper jack. When choosing a cheese, consider what toppings you will be adding to the burger. For example, cheddar would pair well with classic cheeseburger toppings like lettuce and tomato. EditUsing Different Cooking Techniques to Create Additional Flavor Sear the burgers to make a flavorful crust. This will also give you a crisp exterior texture. Burgers can be cooked in a skillet on medium-high heat until a crust forms on the bottom, about 3 minutes, and then baked at for 5 to 7 minutes.[18] Use a cast iron or oven-safe skillet.[19] Only handle the burgers when flipping in order to keep them from drying out.[20] Grill the burgers for a smoky taste. Using a charcoal grill will give you the best flavor. Cook over medium-high heat for 3 to 4 minutes per side. [21] Don't press the burgers down, because you'll lose the juices and end up with a drier burger.[22] Cook the burgers over a campfire to add complex flavors. Different types of wood will add different taste notes. For example, apple wood gives meat a light, sweet flavor and hickory adds a hearty taste.[23] To efficiently cook several burgers at once, use a hinged grill basket. They can be purchased online or from a local outdoors supply store.[24] EditReferences Cite error: <ref> tags exist, but no <references/> tag was found

How to Use Activated Charcoal for Teeth Whitening Posted: 30 Jun 2019 09:00 AM PDT You may have seen activated charcoal touted as the way to get a bright set of pearly whites – and there are a lot of toothpaste and natural health companies jumping on the bandwagon with activated charcoal toothpastes and whitening pastes. The traditional way to use activated charcoal for teeth whitening is to crush a charcoal tablet in water to form a paste you rub or brush on your teeth. Before you take the leap, be aware that the American Dental Association (ADA) warns that activated charcoal may damage the enamel of your teeth if used incorrectly, leading to increased tooth sensitivity.[1] EditSteps EditChoosing an Appropriate Product Consult your dentist for recommendations and advice. Before you start using activated charcoal, schedule an appointment with your dentist. Let them know that you're interested in using activated charcoal to whiten your teeth. They may have products they can recommend.[2] Your dentist can also properly evaluate your oral health and let you know if activated charcoal could possibly harm your teeth or gums. Try a toothpaste with activated charcoal added first. An activated charcoal toothpaste will be less abrasive than an activated charcoal paste, as well as easier to clean off your teeth. If you've never tried activated charcoal before, you may want to start with a toothpaste first.[3] While activated charcoal may be good at removing surface stains, toothpastes are largely ineffective at whitening your teeth because they don't stay in contact with your teeth long enough. However, if you smoke or drink coffee, your teeth may seem whiter after using an activated charcoal toothpaste.[4] Make your own paste with tablets if you have healthy teeth and gums. Making your own activated charcoal paste is typically less expensive than pre-made branded products. Additionally, you avoid other ingredients in pre-made products that may lessen the effectiveness of the activated charcoal.[5] Activated charcoal tablets are available online and at some natural food or health and beauty stores. Activated charcoal is also available in capsule form. You would need to break open the capsule to use the charcoal on your teeth. Read the information on the package carefully and make sure the tablets you buy are okay to use in your mouth. Although paste made with tablets is typically more abrasive than branded activated charcoal products, you can control the abrasiveness depending on how finely you crush up the charcoal. EditUsing Activated Charcoal Properly Crush a tablet of activated charcoal into a cup or bowl. Take a single tablet of activated charcoal out of the bottle and drop it into a small cup or bowl. You may want to use the back of a spoon to crush it up a little bit.[6] The finer the consistency of the activated charcoal, the less abrasive your paste will be. Try not to leave any large or jagged pieces of charcoal, as these could damage your teeth or gums. Pour about 1 teaspoon (5 mL) of water over the charcoal to form a paste. Once you've sufficiently crushed up the activated charcoal tablet, mix it with water to until it has a consistent paste-like consistency.[7] Adding more water and crushing the charcoal more will make your paste less abrasive. However, you should only add a few drops of water at a time. If the paste becomes too watery, it won't adhere to your teeth. Apply the paste to your teeth with a soft-bristled toothbrush. Dip a soft toothbrush into the paste and brush it gently on the exposed surfaces of your teeth. Use light pressure to keep from scrubbing too hard – you might damage your teeth's enamel.[8] Be sure to use a different toothbrush than the one you regularly use to brush your teeth – small bits of charcoal will get trapped in the bristles, and the bristles themselves will become stained. Get a toothbrush with the softest bristles you can find to minimize the abrasiveness. You might try a child's toothbrush, which typically has softer bristles than an adult toothbrush. Leave the paste on your teeth for 3 minutes, then rinse. Once you've covered your teeth in the activated charcoal paste, wait for 3 minutes to allow the charcoal to do its work. Rinse your mouth with cool water repeatedly until you are no longer spitting any charcoal fragments.[9] After rinsing with water, you may want to follow up with a regular mouth rinse so your mouth doesn't taste like charcoal. When you first start, you may have a hard time leaving the activated charcoal in your mouth for 3 minutes. Start with 1 minute and work your way up. Brush and floss like normal after using activated charcoal. Using activated charcoal is not the same as brushing and flossing your teeth, and doesn't take the place of regular dental hygiene. Even while using activated charcoal, follow a normal routine of brushing your teeth at least twice a day.[10] Monitor your teeth and gums carefully when you brush your teeth after using activated charcoal. Discontinue your activated charcoal treatments if you notice your gums bleeding, or if your teeth feel rough or more sensitive than usual. Treat your teeth with activated charcoal at most once every 2 weeks. Activated charcoal is abrasive, and repeated treatments will damage your enamel. Once you lose enamel there's no way to get it back. Using activated charcoal sparingly minimizes cumulative damage.[11] The primary benefit of activated charcoal is the removal of surface stains from your teeth. Waiting a couple of weeks will allow a buildup of stains so the charcoal doesn't start eating away at your enamel. EditExploring Whitening Alternatives Make your own whitening toothpaste with natural ingredients. A mixture of baking soda and hydrogen peroxide is actually proven to whiten your teeth. Dip your toothbrush in hydrogen peroxide, then dip it in baking soda. Brush your teeth for 2 minutes, then rinse well.[12] While baking soda is less abrasive than activated charcoal, it's still abrasive. Use this treatment no more than 2 or 3 times a week, and don't use it as a substitute for regular brushing and flossing. Drink water with dark foods and drinks to minimize staining. Coffee, red wine, pomegranates, and other dark foods and drinks are known to stain your teeth. If you drink water while eating or drinking, the water helps to rinse the stains away, keeping your mouth clean.[13] Smoking can also stain your teeth. If you're a smoker, consider cutting back or making a plan to quit if you want a whiter smile. In the meantime, consider using a smoker's toothpaste that is designed to fight tobacco stains. Eat foods that help keep your teeth clean. The types of food that you eat can help naturally brighten your smile without having to resort to harsh treatments. Fill up on crunchy raw foods that naturally brush the surface of your teeth, such as celery and apples.[14] These foods also help remove bacteria from your mouth and teeth, which can help prevent cavities and gum disease. Try oil pulling to remove bacteria from your teeth. Swish 1 tablespoon (15 mL) of coconut, sunflower, or sesame oil for 1 minute after brushing and flossing. Rinse your mouth out thoroughly after spitting out the oil.[15] Oil pulling is an ancient treatment that may help remove surface stains from your teeth to give you a brighter smile. There aren't any scientific studies that prove oil pulling is actually beneficial for your oral health or will help whiten your teeth. Although oil pulling isn't abrasive and won't harm the enamel of your teeth, you should still consult your dentist before trying this treatment. Talk to your dentist about in-office whitening treatments. Whitening treatments at your dentist's office are the only guaranteed way to get a whiter smile. There are a number of different methods available, some of which may even be covered by your dental insurance.[16] Your dentist will also be able to talk to you about why your teeth are discolored. Some discoloration is genetic, and no whitening treatments will help. EditWarnings Activated charcoal may damage any fillings, crowns, or other dental work. If you've had damaged or broken teeth repaired, talk to your dentist before trying activated charcoal toothpaste or tablets. Do not attempt to use activated charcoal to whiten your teeth if you have gum disease, or if your gums typically bleed when you brush your teeth normally. Consult your dentist before trying any at-home whitening methods to be sure that the method is safe for your teeth. EditThings You'll Need EditUsing Activated Charcoal Properly Activated charcoal tablets Bowl or cup Water Soft-bristled toothbrush EditExploring Whitening Alternatives Baking soda Hydrogen peroxide Coconut, sunflower, or sesame oil EditReferences Cite error: <ref> tags exist, but no <references/> tag was found

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Gizmodo Brasil

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• Engenheiro usou IA para evitar que seu gato trouxesse animais mortos para casa
• Como é entrar num voo usando uma lata de refrigerante como cartão de embarque
• Tesla explica por que carro pegou fogo na China em abril
• Por que o bitcoin aumentou tanto de valor ultimamente? Moeda tether pode ter relação
• Huawei P30 Pro tem R$ 1 mil de desconto na troca de celular em inauguração de quiosques em SP

Engenheiro usou IA para evitar que seu gato trouxesse animais mortos para casa Posted: 30 Jun 2019 01:59 PM PDT Gatinhos podem ser uma fonte inesgotável de fofura, mas alguns deles também são caçadores implacáveis. Era o caso de Metric, o gatinho do engenheiro da Amazon Ben Hamm, que trazia roedores mortos ou muito feridos para casa. Durante o evento Ignite Seattle, Hamm contou como usou a inteligência artificial para solucionar esse problema. Ele usou uma câmera com inteligência artificial chamada Amazon Deep Lens para identificar quando seu gato estava trazendo uma presa consigo e impedir que ele passasse pela portinha. Para fazer isso, ele usou ainda uma sistema de fechadura com Arduino. O engenheiro da Amazon treinou a inteligência artificial da câmera com fotos do gatinho em diferentes situações. Ele precisou de fotos em que o gato não aparecia, além de imagens do gato de costas, indicando que estava saindo; de frente e, por fim, chegando com uma presa em sua boca. No total, foram 22.995 imagens utilizadas para treinar a IA. Se a câmera identificasse que Metric tinha trazido uma presa, a portinha ficava trancada por 15 minutos e Hamm recebia uma mensagem de texto – além disso, o engenheiro definiu um sistema para doar um dinheiro para a National Audubon Society, que protege pássaros, sempre que o gato trouxesse uma presa. Segundo Hamm, em cinco semanas desde que o sistema começou a funcionar Metric ficou preso fora de casa injustamente uma vez – uma taxa de erro baixa, considerando que ele já usou a portinha 180 vezes. Por outro lado, ele chegou com presas seis vezes e foi barrado em cinco ocasiões. Você pode assistir a apresentação de Ben Hamm no Ignite Seattle abaixo. No vídeo, ele explica todo o processo de criação de seu sistema (em inglês): [The Verge] The post Engenheiro usou IA para evitar que seu gato trouxesse animais mortos para casa appeared first on Gizmodo Brasil.

Como é entrar num voo usando uma lata de refrigerante como cartão de embarque Posted: 30 Jun 2019 12:28 PM PDT De todas as aplicações futuras da tecnologia, eu nunca havia imaginado lá atrás que um dia estaria fazendo check-in com uma lata de refrigerante. Ainda assim, foi exatamente essa a maneira como embarquei rumo a Porto Alegre na quarta-feira (26) para assistir ao jogo da Seleção contra o Paraguai, pela Copa América. O procedimento é uma ação da GOL em parceria com o Guaraná Antarctica, estreitamente ligada à disputa do torneio sul-americano. A máquina de check-in estará disponível no saguão do Aeroporto de Congonhas, em São Paulo, até o dia 7 de julho, data da final da Copa América. Qualquer cliente da GOL que tenha voos diretos com embarque previsto para o aeroporto paulistano poderão fazer o check-in diferente, das 9h às 18h, recebendo uma latinha de Guaraná com seu nome e o código de barras do cartão de embarque na embalagem. O processo é bastante rápido: basta o passageiro digitar seu localizador no totem da Gol no saguão, apertar um botão na tela, e o processo de impressão das informações na latinha começa. Em questão de segundos, tudo está pronto, e o passageiro só precisa segurar a vontade de tomar o refrigerante até a entrada no avião (caso o cliente abra a lata, precisará realizar uma nova impressão do cartão de embarque no autoatendimento da GOL). Dentro da máquina, a tecnologia envolve impressão a laser e um sistema específico. Bruno Temporim Carneiro, produtor da Índice, empresa responsável pela criação, explica que o sistema desenvolvido pela companhia lê todas as informações do passageiro por meio de uma integração com o sistema de embarque da GOL. Dentro do totem, uma impressora a laser industrial recebe as informações e imprime os dados na lata rapidamente. Segundo Carneiro, o sistema está pronto para receber o pedido de uma nova impressão a cada cinco segundos, com o tempo da operação, portanto, dependendo mais da interação do usuário com o totem. Ainda que a ação seja temporária, prevista para acabar já no próximo final de semana, a premissa aqui é bastante interessante e pode abrir caminho para outras experiências que juntem serviços diferentes para oferecer algo inovador às pessoas. Sem falar que poder passar pelo raio-x com um recipiente com mais de 100 ml foi bem libertador. *O Gizmodo Brasil foi a Porto Alegre a convite da GOL The post Como é entrar num voo usando uma lata de refrigerante como cartão de embarque appeared first on Gizmodo Brasil.

Tesla explica por que carro pegou fogo na China em abril Posted: 30 Jun 2019 10:58 AM PDT Um vídeo de um Tesla Model S explodindo enquanto estava estacionado em uma garagem em Xangai viralizou em abril deste ano, após ser publicado na rede social Weibo. O material de 22 segundos foi captado pelas câmeras de segurança da garagem e mostrava o carro pegando fogo repentinamente. • O principal motivo pelo qual baterias explodem e pegam fogo Pouco mais de dois meses de investigação e temos a resposta sobre o por que isso aconteceu. Na última sexta-feira (28), a Tesla revelou que um único módulo da bateria (que é composto de várias células) fez com que o incêndio começasse. De acordo com a empresa, não foram encontrados nenhum defeitos no sistema do Model S. Porém, havia um defeito em um módulo de bateria que fica na parte da frente do veículo. Eles reavaliaram as configurações de gerenciamento de carga e das condições térmicas do Model S e Model X e enviaram uma atualização de software para “ajudar a proteger ainda mais a bateria e melhorar sua longevidade”, conforme um comunicado. A companhia disse ainda que seu sistema de segurança estava funcionando corretamente, o que ajudou a manter o resto da bateria intacta. “Qualquer pessoa dentro do carro teria tido tempo de sair com segurança”, afirma a Tesla. De acordo com o TechCrunch, essa atualização de software havia sido anunciada em maio, depois de um incêndio envolvendo um Model S em Hong Kong. A companhia diz ainda que seus carros elétricos têm 10 vezes menos chances de pegar fogo do que carros movidos a gasolina ou diesel. Uma competidora chinesa da Tesla, a Nio, disse no Weibo que alguns de seus módulos de bateria também podem ter problemas de segurança, e iniciou um recall de 4.803 veículos após três incidentes de incêndios. Recentemente, a Audi também iniciou um programa de recall voluntário para a SUV E-Tron após descobrir que a umidade pode chegar até a célula da bateria por meio do cabeamento elétrico. Não houve casos de incêndio relacionados ao veículo da Audi. [Reuters, TechCrunch] The post Tesla explica por que carro pegou fogo na China em abril appeared first on Gizmodo Brasil.

Por que o bitcoin aumentou tanto de valor ultimamente? Moeda tether pode ter relação Posted: 30 Jun 2019 09:28 AM PDT O anúncio da Libra, criptomoeda do Facebook, movimentou o mercado de criptomoedas e, numa primeira análise, parecia ter feito o preço do bitcoin subir consideravelmente. Os eventos certamente estão relacionados, mas podem não contar a história toda. De acordo com uma reportagem do Decrypt, as flutuações de preço do bitcoin podem estar relacionadas com a emissão do tether, uma criptomoeda lastreada no dólar frequentemente usada para trocar por bitcoins. A relação do tether com as quedas e altas do bitcoin foi estudada por um professor da Universidade do Texas conhecido por alertar sobre atividades suspeitas no Índice de Volatilidade VIX — que se baseia nos preços das opções do S&P 500 e que mede as expectativas dos agentes para a movimentação das ações nos próximos 30 dias. Entendendo o tether O tether é uma moeda digital criada por uma empresa de mesmo nome, que por sua vez é subsidiária da iFinex (para diferenciar, tether é a moeda digital; e Tether é a empresa). A moeda é baseada na Omnilayer, plataforma que permite a criação de tokens usando o blockchain do bitcoin. A moeda tem relevância por ser lastreada no dólar e a companhia promete que cada tether (USTD) equivalha a um dólar. Em tese, ao comprar um tether, você paga um dólar que fica guardado. Se você decidir retirar a grana, você devolve o tether para a companhia e eles depositam o seu dólar em sua conta. No entanto, a empresa tem sido investigada pela procuradoria geral de Nova York por fraude. O próprio advogado da companhia afirmou à procuradoria que os tokens são financiados em 74% por reservas — ou seja, a moeda que deveria valer US$ 1 vale, na verdade, US$ 0,74 — o que indica que foram gerados tokens sem o lastro. Como o tether pode ter influenciado preços do bitcoin No começo deste ano, o bitcoin chegou a ser comercializada por menos do que US$ 4 mil e, durante as duas últimas semanas, o crescimento foi bastante acentuado, passando de US$ 8 mil para quase US$ 13 mil na última quarta-feira (26). Esse crescimento parece coincidir com a criação de novos tokens do tether — inclusive, a capitalização de mercado do USDT também cresceu nas últimas semanas. Alguns analistas suspeitam que a Tether, empresa por trás da moeda, esteja criando USDT não lastreadas no dólar para comprar bitcoins, fazendo com que seu preço aumente. Essas transações supostamente seriam feitas por meio da Bitfinex, que também é subsidiária da iFinex. A empresa nega. O artigo feito pelo professor da Universidade do Texas John Griffin em colaboração com Amin Shams chamado “Is Bitcoin Really Un-Tethered?” aponta indícios de que o tether é utilizado para estabilizar e manipular os preços do bitcoin. No estudo, eles tentaram entender como 2,5 bilhões de tether circularam no mercado e as análises de um ano mostram um padrão relacionado com os preços do bitcoin. Primeiro, a moeda é criada pela companhia, muitas vezes em grandes quantidades, e quase todos os novos USTD são passados pela Bitfinex. Quando os preços do bitcoin caem, são utilizados USTDs para comprar bticoin “de uma forma coordenada que determina o preço”, conforme explicou Griffin em uma entrevista à Bloomberg. O artigo de Griffin descreve vários padrões descobertos num período de um ano. Primeiro, ele descobriu que os fluxos não eram simétricos. Quando o preço do bitcoin caiu, as compras de tether tenderam a aumentar. Mas em épocas de subida do bitcoin, isso não ocorreu. Ele descreve no artigo que isso “sugere que o tether está sendo usado para proteger os preços do Bitcoin durante as quedas”. De acordo com a reportagem do Decrypt, durante o mês passado foram emitidos o equivalente a US$ 600 milhões de tethers. A alta do valor do bitcoin coincide com essa emissão. O site consultou Will Harborne, fundador da Ethfinex — uma casa de câmbio subsidiária da Bitfinex — que disse que os eventos estão relacionados. Harborne afirma que quando há uma grande “impressão” de tethers, significa que muitos clientes fizeram uma encomenda da moeda para que eles fossem jogados no mercado — pouco antes dos valores aumentar. A companhia que emite a moeda diz que são necessários, no mínimo, US$ 100 mil para que os tethers sejam comprados diretamente de seu site oficial, o que gera grandes números a cada impressão. Apesar disso, Harborne insistiu que essas ações, nas quais grandes investidores revelam suas intenções de comprar grandes quantidades de tethers não é exclusiva desta moeda, nem uma forma de manipulação de mercado. Segundo ele, a transparência do blockchain legitima o negócio, além do fato de outras casas de câmbio receberem outros fluxos de dinheiro semelhantes. Ele argumenta que tais transferências, feitas em moeda fiduciária, ficam ocultas. No final das contas, o anúncio da Libra certamente influenciou o preço do bitcoin, mas as coisas podem ser mais complexas. Afinal, a queda dos preços também está relacionada com hacks, relatos de fraude ou problemas de segurança. The post Por que o bitcoin aumentou tanto de valor ultimamente? Moeda tether pode ter relação appeared first on Gizmodo Brasil.

Huawei P30 Pro tem R$ 1 mil de desconto na troca de celular em inauguração de quiosques em SP Posted: 30 Jun 2019 06:33 AM PDT A Huawei abrirá dois quiosques em São Paulo para a venda direta de seus produtos. As lojas, nos shoppings Morumbi e Eldorado, serão inauguradas na próxima segunda-feira (1º) e terça-feira (2), respectivamente. Para comemorar a fabricante garantirá R$ 1 mil de desconto no Huawei P30 Pro na troca pelo seu celular atual, além de uma bonificação de acordo com a avaliação do aparelho. A promoção é similar a que foi realizada no lançamento do smartphone topo de linha no Brasil. Os R$ 1 mil são garantidos e, dependendo do seu modelo de celular, pode garantir um baita desconto. A companhia alerta que o aparelho a ser trocado precisa ser homologado pela Anatel – ou seja, nada de trocar importados. A promoção será válida apenas nos dias de inauguração de cada quiosque. As lojas da Huawei terão 9 m² e venderão o P30 Pro por R$ 5.499, o P30 Lite por R$ 2.499, os fones de ouvido Active Noise Canceling Earphones com conector USB-C e capas protetoras do P30 Lite. A fabricante afirma que vendeu 10 milhões de unidades vendidas globalmente, em um período de 85 dias após seu lançamento. A Huawei teve boas notícias neste final de semana, após o presidente dos Estados Unidos, Donald Trump, anunciar que empresas americanas poderão vender produtos para a fabricante chinesa. A expectativa é que a retomada de negociações entre EUA e China esfrie o tom belicoso com a Huawei. Quem estava a fim de adquirir um dos smartphones que a companhia trouxe ao Brasil, além de ter mais tranquilidade em relação às consequências das restrições dos EUA, terá a oportunidade de aproveitar um bom desconto. The post Huawei P30 Pro tem R$ 1 mil de desconto na troca de celular em inauguração de quiosques em SP appeared first on Gizmodo Brasil.

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