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Gaby Garro Abdykerimov
584 followers -
Software engineering student. Science and art enthusiast.
Software engineering student. Science and art enthusiast.

584 followers
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Change your password regularly? "The algorithm cracked 17 percent of the accounts in fewer than five attempts. In offline attacks performed on the recovered hashes using superfast computers, 41 percent of the changed passwords were cracked within three seconds."

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Unintended consequences of cost-savings: cables that damages electronics

It's no secret that manufacturers want to cut costs. But cost cutting sometimes has more consequences than those manufacturers may test for - and this results in electronic devices reaching end-of-life earlier than expected.

The problem is very hard to verify. In this particular case, cables are marketed as being compatible with a particular specification, but upon inspecting the hardware, the Google engineering department has discovered that by using a cheaper, smaller capacitor, the specifications are not being met. That, in turn, means that the cable does work - but damages your equipment at the same time.

While this is a shining example of how cost-cutting around technical specifications and lying about them afterwards is particularly damaging to any electronic system relying on standards, especially because the explanations are public, precise, and difficult to bullshit against, it's certainly not an isolated case.

I know everyone hates bureaucracy... but if companies can't self-police to get fundamental things like international electronics standards right, with grave consequences for consumers, then perhaps it is time to introduce some bureaucracy back into the process to ensure a basic quality standard for standard interfaces.

#Economics   #Standards   #Fail

/via +Urs Hölzle 

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Our response to wages operates with a background economic theory, which we may never describe to ourselves directly but which could in fact be stated as follows: a person’s wages are determined by the scale of their social contribution.

But Economics states that wages are exclusively determined not by social contribution per se, but by the number of people able and willing to do a given job that others want done. 

If there are lots of people able to complete the task, you won’t need to offer very much money to get their labour; and if there are very few people able to to do the job, you will have to pay a lot more. But note that in all this, there is no room whatsoever to judge the worth of the work being done; the determinant of wages is just the strength of demand in relation to supply.

A hitman can extract seven figure sum for carrying out a murder whereas a hospice nurse, charged with accompanying people through their last days (a task as meaningful as one could imagine), is paid a salary that's a tiny fraction of the murderer’s stipend. In neither case do the wages have any connection to the contributions being made; it simply has to do with how many people are capable of carrying out a task and how much demand there is for it. The hitman may have made his money in appalling ways, but unless society asks very careful questions, the world will mostly just see his money and be impressed.

When these divergent fates are vivid in our minds – the feted hitman and the downtrodden nurse – the whole economic system can seem entirely lacking in justice: and our minds rebel against the gross violation of the principles of fairness.

[...]

Once we get to know people well, the state of their bank balance will invariably decline – and what they are really bringing to the task starts to emerge, along with a fairer way of distributing honour.
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Scientists discover new 3-D arrangement of the electrons in materials manifesting high temperature superconductivity

"A team led by scientists at the Department of Energy's SLAC National Accelerator Laboratory combined powerful magnetic pulses with some of the brightest X-rays on the planet to discover a surprising 3-D arrangement of a material's electrons that appears closely linked to a mysterious phenomenon known as high-temperature superconductivity.

This unexpected twist marks an important milestone in the 30-year journey to better understand how materials known as high-temperature superconductors conduct electricity with no resistance at temperatures hundreds of degrees Fahrenheit above those of conventional metal superconductors but still hundreds of degrees below freezing. The study was published today in Science."

Read more at: http://phys.org/news/2015-11-dimension-high-temperature-superconductivity.html

The paper: "Three-dimensional charge density wave order in YBa2Cu3O6.67 at high magnetic fields" Science, http://www.sciencemag.org/content/early/2015/11/04/science.aac6257

Image: In this artistic rendering, a magnetic pulse (right) and X-ray laser light (left) converge on a high-temperature superconductor to study the behavior of its electrons. Credit: SLAC National Accelerator Laboratory

#science   #superconductivity  
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For the past 20 years, astronomers peered into the night sky, puzzled about a type of planet called hot Jupiters.

As they analysed data from giant telescopes on mountaintops, and later data beamed to Earth from spacecraft such as the Kepler space telescope, they wondered: How did these large hot planets ever get so close to their suns?
Scientists at the University of Michigan, working with a team of colleagues, have made a startling discovery using data collected by the K2 mission: One of these mysterious hot Jupiter systems has not one, but two close-in planetary companions, leading to new clues about planet formation and migration.

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Hubble’s Jupiter Maps Reveals Weird Structures

Over a 10 hour period, the Hubble Space Telescope gazed at the solar system’s largest planet to produce one of the most spectacular maps of Jupiter’s complex and dynamic atmosphere. Immediately astronomers were able to measure the size of the planet’s shrinking Great Red Spot and notice some mysterious structures along the way.
As the spot has shrunk, it’s color has also become more anemic, losing some of its redness. Also, as these new Hubble observations show, a strange wispy structure has formed inside the storm, becoming warped by the high-speed winds that have been clocked at a speed of 540 kilometers (335 miles) per hour. Astronomers, so far, have little explanation as to what this feature is or what caused it.
Another oddity has been spied just north of the planet’s equator — a wave-like structure has formed, something that hasn’t been seen since the Voyager 2 flyby in 1979. During that flyby, these waves were assumed to be a transient event and the fact the spacecraft imaged them was a fluke. But they’ve now returned, no doubt sparking some huge interest as to their origins.

source http://news.discovery.com/space/astronomy/hubbles-stunning-jupiter-map-reveals-weird-structures-151013.htm?utm_source=tumblr.com&utm_medium=social&utm_campaign=DNewsSocial

image credits NASA/Hubble

#space #universe #cosmos #astronomy #jupitar #hubble #solarsystem #science #planets #stars #storm #greatredspot  
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good lord, what ignorance makes people do
14-Year old builds his own digital clock, brings it to school, teacher has him arrested // Apparently there are teachers and police officers with such a complete lack of science literacy that consider any digital clock to be almost a time bomb, especially if a boy with a muslim name is involved.

>> As a new high schooler, Ahmed Mohamed thought he’d show off his Maker prowess by bringing in a simple digital clock he built at home in about 20 minutes, he told the Morning News. Instead, a teacher decided a circuit board plus wires must equal one thing: mortal danger.
[...] By mid-afternoon, police were leading the boy out of school in handcuffs and taking him to juvenile detention on suspicion of making a “hoax bomb.”<<

More details as well as instructions on how to make your digital clock on Wired: http://wrd.cm/1UUa3Ab

(Photo originally posted on Twitter by +Anil Dash. Yes, the boy is wearing a NASA t-shirt)

#islamophobia #technophobia #science #news 
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