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Archivo del Autor: Belen De Leon

Science doesn't quite know why you hear Yanny or Laurel – CNET

Ten experts came up with four different explanations.
Source: CNET

Watch a laser-powered RoboFly flap its tiny wings

Making something fly involves a lot of trade-offs. Bigger stuff can hold more fuel or batteries, but too big and the lift required is too much. Small stuff takes less lift to fly but might not hold a battery with enough energy to do so. Insect-sized drones have had that problem in the past — but now this RoboFly is taking its first flaps into the air… all thanks to the power of lasers.

We’ve seen bug-sized flying bots before, like the RoboBee, but as you can see it has wires attached to it that provide power. Batteries on board would weigh it down too much, so researchers have focused in the past on demonstrating that flight is possible in the first place at that scale.

But what if you could provide power externally without wires? That’s the idea behind the University of Washington’s RoboFly, a sort of spiritual successor to the RoboBee that gets its power from a laser trained on an attached photovoltaic cell.

“It was the most efficient way to quickly transmit a lot of power to RoboFly without adding much weight,” said co-author of the paper describing the bot, Shyam Gollakota. He’s obviously very concerned with power efficiency — last month he and his colleagues published a way of transmitting video with 99 percent less power than usual.

There’s more than enough power in the laser to drive the robot’s wings; it gets adjusted to the correct voltage by an integrated circuit, and a microcontroller sends that power to the wings depending on what they need to do. Here it goes:

“To make the wings flap forward swiftly, it sends a series of pulses in rapid succession and then slows the pulsing down as you get near the top of the wave. And then it does this in reverse to make the wings flap smoothly in the other direction,” explained lead author Johannes James.

At present the bot just takes off, travels almost no distance and lands — but that’s just to prove the concept of a wirelessly powered robot insect (it isn’t obvious). The next steps are to improve onboard telemetry so it can control itself, and make a steered laser that can follow the little bug’s movements and continuously beam power in its direction.

The team is headed to Australia next week to present the RoboFly at the International Conference on Robotics and Automation in Brisbane.


Source: TechCrunch

Google rolls back Chrome update breaking web games – CNET

Autoplay video fix put on hold.
Source: CNET

Iron Man actor Robert Downey Jr. to host AI show on YouTube Red – CNET

If Marvel’s Tony Stark had his own show about robots, this would be it. Robert Downey Jr. creates a new webseries all about artificial intelligence.
Source: CNET

Eight years on, Apple employees still sore about Samsung copying – CNET

The patent infringement damages trial also gives a look into how Apple designs its products.
Source: CNET

Superhero outcasts Doom Patrol invade DC Universe – CNET

Superpowered DC Comics outcasts Robotman, Negative Man, Elasti-Girl, Crazy Jane and the Chief will get their own streaming live-action show.
Source: CNET

Justice Department reportedly investigating Cambridge Analytica – CNET

The bureau is looking into the now-defunct firm’s business practices, The New York Times reports.
Source: CNET

White House Cuts Top Cybersecurity Role as Threats Loom

Former national security officials say the Trump administration’s decision to eliminate top cybersecurity policy roles sends the wrong message.
Source: Wired

White House sheds cyber coordinator role

The White House has opted to eliminate the cyber coordinator role on the National Security Council, in what some see as a step back in strong cybersecurity policy. The duties formerly performed by the coordinator will be taken up by the other two senior directors of the NSC’s cyber team. Politico first reported the news.

Rob Joyce, who left the role on Friday, was chief of an NSA hacking outfit (Tailored Access Operations) last March. John Bolton, Trump’s national security advisor, ended the role with Joyce’s departure; a memo sent to NSC employees explained that the elimination is to “streamline authority” in the Council. The other directors will pick up the slack.

The cyber coordinator role was first created by President Obama in 2009; its occupant in charge of, as you might expect, coordinating national cybersecurity policy across the many places in the government where it is being addressed.

In a time when cyber policy is increasing in importance and cyber-threats are clear and present in the country’s elections and other critical infrastructure, it seems a strange decision to “streamline” rather than bolster an important cybersecurity-related office.

Trump’s administration has made noises about taking cybersecurity seriously, and in other areas has taken steps to improve things — for instance, its choice in August to elevate the Military’s Cyber Command and give it more independence. This added roles, rather than subtracting them. But Bolton’s moves put more hats on fewer people, which would seem to complicate authority rather than streamline it.

It is possible that this is all part of a larger plan that will ultimately result in better decision-making capabilities and an improved cyber policy organ, but if so, the plan is unclear, even to those in the know.

It’s almost as if the federal government’s policies on cybersecurity aren’t quite in sync. Maybe they should appoint someone to coordinate them!


Source: TechCrunch

Intel’s 10nm CPU finally makes it to retail in a refreshed Lenovo IdeaPad laptop

Lenovo’s refreshed IdeaPad 330-15 has appeared sporting Intel’s unannounced Core i3-8121U processor. That’s one of Intel’s new Cannon Lake chips based on its 10nm process technology. Mass production won’t begin until 2019.

The post Intel’s 10nm CPU finally makes it to retail in a refreshed Lenovo IdeaPad laptop appeared first on Digital Trends.


Source: Digital trends

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