F-22A Raptor military jet suffers damage after slamming onto runway, skidding to a stop | Intelligent Aerospace


An F-22A Raptor military aircraft suffered extensive damage after skidding along the runway at Naval Air Station (NAS) Fallon in Nevada during what is being called a botched takeoff.

U.S. Air Force officials are investigating the mishap, although initial reports speculate the cause may have been an issue with the left engine, related to the premature retraction of landing gear, or a combination of factors.

Source: F-22A Raptor military jet suffers damage after slamming onto runway, skidding to a stop – Intelligent Aerospace

IoT: A View from the Trenches | EE Times

“I’m wearing jeans here in a test lab for an automated warehouse, helping make boxes and running wiring harnesses for smart cameras,” said Rob Risany, introducing himself. He joined ADLink Technology last July from IBM’s Watson group to help the board and gateway vendor create a new IoT group.

“It’s not driven by product engineers writing specs but by definitions of business problems … people won’t invest in technology for technology’s sake, but on the other hand, it seems like all CTOs need to have digital experiment in IoT running by end of year or they will be gone,” said Risany.

Source: IoT: A View from the Trenches | EE Times

Security Outlook Darkens at RSA | EE Times

The past year revealed the dark side of social networks and brought the largest government-sponsored attacks to date. It also has shown that blockchain and quantum computing are neither immediate threats or panaceas for security, said experts.

“The threat picture is getting darker,” said Kirstjen Nielsen, Secretary of the U.S. Department of Homeland Security (DHS), in a keynote at the event that attracted nearly 50,000 registrants. “In each morning briefing, I see digital threats multiplying faster than we can keep up.”

Source: Security Outlook Darkens at RSA | EE Times

Test Tool Finds Ethernet Wiring Errors | EE Times

Because you need to connect to both ends of a cable to test it, the LANSeeker needs two devices: an active base (which, of course, is portable) and passive remote.

The remote module attaches to the base unit for safekeeping, sliding off to the top. That’s convenient for storage and transport of the tester — it becomes one piece.

I’ve used other cable testers that are two separate pieces, and this design is better because you’re less likely to misplace the remote unit. Pulling the remote from the base was, however, a little harder than I expected, though reattaching it was smooth. Figure shows the remote receiver separated from the base transmitter unit.

Source: Test Tool Finds Ethernet Wiring Errors | EE Times

Signal interfaces and noise coupling | EE Times


Most systems consist of at least two devices which operate on mains power. Although hum and other problems are often blamed on “improper” earthing, in most cases there is actually nothing wrong with the system earthing — we can’t blame the electrician for our noise problems.

First, a properly installed, fully regulation-compliant mains distribution system will develop small, entirely safe voltage differences between the Protective Earth (PE) connections of all outlets.

Second, even if a system consists entirely of unearthed equipment, small mains-related “leakage” currents will flow in all interconnecting cables.

While these tiny voltages and currents are no problem for lights and household appliances, they can cause serious noise problems if they’re allowed to couple into vulnerable audio signal paths.

Source: Signal interfaces and noise coupling | EE Times

Book on GPS History Reveals Innovation, Test Challenges | EE Times

The history of GPS development, in less-technical terms, provides meaningful insight into this fortuitous blend of disparate technologies and the people who made it happen.

It’s easy to be unaware of the difficult path behind “how we got here” when there’s a technical advance that so quickly becomes a routine, fully accepted part of daily life. This is true of the Global Positioning System (GPS), which took only a few decades to go from a just-proven concept to a key building block for both countless mass-market and highly specialized applications. (Note that the first launch of the “official” GPS system satellite occurred about 40 years ago in June 1977.)

That’s why I enjoyed the recently published book “Pinpoint: How GPS is Changing Technology, Culture, and Our Minds” by Greg Milner, with its interesting history and perspective into the development of GPS

Source: Book on GPS History Reveals Innovation, Test Challenges | EE Times

Cow may be biggest mammal if humans keep up extinctions


Humans apparently targeted big species for meat, while smaller creatures such as rodents escaped, according the report examining trends over 125,000 years.

In North America, for instance, the mean body mass of land-based mammals has shrunk to 7.6 kg (17 lbs) from 98.0 after humans arrived.

Source: Cow may be biggest mammal if humans keep up extinctions: study

PM Narendra Modi Served An Uncomfortable Message By IMF Boss Christine Lagarde


Christine Lagarde said she had told Prime Minister Narendra Modi that he did not mention the women of India enough in his speech to the summit and “it’s not just a question of talking about them”.

“I was hoping he would have said a bit more. Wish he had talked a bit about girls and Indian women,” she had then told NDTV.

Source: Kathua rape: PM Narendra Modi Served An Uncomfortable Message By IMF Boss Christine Lagarde

Two Steps Forward, One Step Back: The State of Preschool in the U.S. | US News


“Most developed nations now offer universal preschool – even China has committed to pre-K for every 4-year-old by 2020,” Steven Barnett, the institute’s senior co-director, said on a press call Tuesday.

“Meanwhile, the United States has made little progress. This is no way to compete globally now or in the future. Our first step back to leadership is quality preschool.”

The report, “The State of Preschool 2017,” takes into account enrollment, funding, teacher qualifications and other indicators of program quality.

Source: Two Steps Forward, One Step Back: The State of Preschool in the U.S. | Education News | US News

Growing pains: how Oregon wound up with way more pot than it can smoke | The Guardian


Flooded with supply, prices are dropping so much that some dispensaries in the Portland area are selling the drug for $4 a gram. That’s less than half the cost of a bargain-basement batch in other US cities where marijuana is legal, like Denver and Seattle.

But 1,824 marijuana-related business licenses have already been issued, including 981 production operations. Another 967 production licenses are in various stages of approval by the state and could come online later this year.

Source: Growing pains: how Oregon wound up with way more pot than it can smoke | Society | The Guardian