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Facebook's blockchain boss David Marcus is leaving cryptocurrency startup Coinbase's board (FB)

Facebook's blockchain boss David Marcus is leaving the board of crypto startup Coinbase. His departure is a signal that the social networking giant's secretive blockchain efforts are progressing. "Because of the new group I’m setting up at Facebook around Blockchain, I’ve decided it was appropriate for me to resign from the Coinbase board," Marcus said in a statement.

In a sign that Facebook's secretive blockchain effort is progressing, David Marcus, the head of that project, announced he's leaving the board of $8 billion cryptocurrency startup Coinbase.

Marcus joined Coinbase's board in December 2017. His decision to resign "was made to avoid the appearance of a conflict of interest," a Coinbase representative told CoinDesk, which 

President Trump says he’s having dinner with Apple CEO Tim Cook, praises him for ‘investing big dollars in U.S.A.’

President Trump says in a tweet that he has dinner plans with Apple CEO Tim Cook. That dinner will likely take place in Bedminister, New Jersey, where the President has been since August 3.  Cook has been vocal in his disapproval of certain Trump Administration policies, particularly around immigration and trade.

Diners in the vicinity of Bedminster, New Jersey could find themselves in very powerful company on Friday evening.

President Trump, who has been at the Trump National Golf Club in Bedminster since August 3, has dinner plans with Apple CEO Tim Cook, according to a tweet sent Friday

"He is investing big dollars in U.S.A.," Trump said in the tweet. Recently,

The founder of Silk Road is dictating tweets from the prison where he's serving life — and he's convinced 55,000 people to sign his petition for clemency

Ross Ulbricht was sentenced to life in prison in 2015 after being convicted of running the dark web marketplace Silk Road. His family have set up the twitter account @RealRossU, which relays messages Ulbricht dictates from prison. The account has helped get over 55,000 signatures for a petition asking for clemency for Ulbricht. His supporters argue Silk Road was no different to eBay and it's not his fault that people used it to sell drugs.

Ross Ulbricht, the founder of the dark web marketplace Silk Road, is dictating messages from prison that his family are delivering to the outside world via Twitter.

The Twitter account 

A 183-year-old law created for horse-drawn carriages has frustrated Silicon Valley's buzziest startups

A 183-year-old law originally designed to regulate horse-drawn carriages is partly responsible for preventing buzzy Silicon Valley scooter startups from expanding to the UK. The 1835 Highways Act prevents cattle, horses, and "carriages" — like scooters — from riding the pavement. Two startups, Bird and Lime, have been in talks with UK regulators about bringing electric scooter hire to London, but can't launch unless the laws change. They have a chance to influence the law, however, because the British government is currently examining whether transport regulation might be getting in the way of innovation.

Electric scooter startups are spreading across the US, and raising billions of dollars in venture capital as investors pile into the boom in on-demand transport.

NASA is about to launch the fastest spacecraft in history in a $1.5-billion attempt to 'touch the sun' for the first time

NASA plans to launch a robot on Sunday that will fly closer to the sun than any mission in history. A Saturday launch attempt was delayed due to a technical glitch. The Parker Solar Probe will have to travel about 430,000 mph and use a high-tech heat shield to survive the trip. The probe is designed to study the sun's ultra-hot outer atmosphere, called the corona, among other mysteries of our star. The mission may help scientists predict space weather events that can wreak havoc on Earth.

NASA is about to launch a $1.5 billion space mission to "touch" the sun and study its

SpaceX is quietly planning Mars-landing missions with the help of NASA and other spaceflight experts. It's about time.

SpaceX, founded by Elon Musk, is building a rocket-and-spaceship system to land people on Mars. Musk said he wants to launch the first humans to Mars in 2024, following an uncrewed mission in 2022. As Ars Technica reported, SpaceX held a private "Mars Workshop" with NASA and other experts to draft plans for its Mars landings. Experts say setting up a viable outpost, let alone a

7 things you need to look for when buying a new computer

There are tons of lists online that suggest what computer you should buy, but there are so many great computers out there that any list is incomplete.

You're better off knowing what will cater to your specific needs. That way, you can look for the right computer for you, even if it may not be found in the hundreds of roundups online. 

Below, I've listed what kind of specs you should consider based on what kind of user you are, whether you're a professional, power user, casual user, or use a computer purely for email. Everything below applies to both laptops and desktops, as well as Windows and Mac machines. 

Check it out:

High-end specs: Smooth, fast performance for professionals, power users, and those who don't want to wait for things to happen on their computers.

5 myths about iPhone battery life you might mistakenly believe — and what you should do instead (AAPL)

You're not alone: everyone wants to eke out more time from their iPhone battery.

But you might not be going about it the right way. Because so many people have iPhones, a lot of conventional wisdom about iPhone battery life can be similar to folk wisdom. 

But that's not to say there aren't ways you can improve your battery life by changing specific settings or the way you use your iPhone.

Here are five common myths about iPhone battery life, what you can do about them, and sources where you can find additional information: 

Myth #1: Closing apps you're not using can save battery life

It's a safe bet that at some point you know someone who compulsively shuts off apps on their smartphone to save battery.

They hit the home button twice, and then swipe up on various apps they've used in the past until the carousel is cleared.

Elon Musk's tweet about taking Tesla private might be ethically questionable, but it isn't morally wrong (TSLA)

Tesla CEO Elon Musk's tweet about taking Tesla private was meet with moralistic outrage from market analysts and commentators. Tesla has been a stock that's produced an excessive amount of moral opinion. At base, Tesla's mission is reasoned and ethical, and this could be why Musk wants to escape market moralism.

The scolding came quick. 

Right after Tesla CEO Elon Musk tweeted on Tuesday that he was considering taking the company private at $420 per share, a chorus of commentators said that they we're shocked — SHOCKED! — that he had so immodestly transgressed.

We drove a $35,000 Mazda CX-5 SUV to see how it stacks up against rivals from Honda and Toyota — here's the verdict

The Mazda CX-5 is one of the most popular compact crossover SUVs on the market. The 2018 Mazda CX-5 is powered by a 2.5-liter, 187 horsepower, naturally aspirated, SKYACTIV four-cylinder engine. The CX-5's main rivals include the Honda CR-V, Toyota RAV4, and Nissan Rogue. The 2018 Mazda CX-5 starts at $24,150 while our top-of-the-line all-wheel-drive Grand Touring model starts at $30,945. With fees and options, the as-tested-price came to $34,685.