As the field of "big data" has emerged as a tool for solving all sorts of scientific and societal questions, one of the main challenges that remains is whether, and how, multiple sets of data from various sources could be combined to determine cause-and-effect relationships in new and untested situations. Now, computer scientists from UCLA and Purdue University have devised a theoretical solution to that problem. Their research, which was published this month in the Proceedings of the National Academy of Sciences, could help improve scientists' ability to understand health care, economics, the environment and other areas of study, and to glean much more pertinent insight from data. The study's authors are Judea Pearl, a distinguished professor of computer science at the UCLA Henry Samueli School of Engineering and Applied Science, and Elias Bareinboim, an assistant professor of computer science at Purdue University who earned his doctorate at UCLA. Big data involves using mountains and mountains of information to uncover trends and patterns.

With the unemployment rate falling to 5.3 percent, the lowest in seven years, policy makers are heaving a sigh of relief. Indeed, with the technology boom in progress, there is a lot to be optimistic about. Manufacturing will be returning to U.S. shores with robots doing the job of Chinese workers; American carmakers will be mass-producing self-driving electric vehicles; technology companies will develop medical devices that greatly improve health and longevity; we will have unlimited clean energy and 3D print our daily needs. The cost of all of these things will plummet and make it possible to provide for the basic needs of every human being. I am talking about technology advances that are happening now, which will bear fruit in the 2020s. But policy makers will have a big new problem to deal with: the disappearance of human jobs. Not only will there be fewer jobs for people doing manual work, the jobs of knowledge workers will also be replaced by computers.

It was a staggering feat, a car that went faster than the speed of sound. Two decades on, that record remains unchallenged. Back in 2007, a small team of British engineers headed up by Richard Noble and Andy Green decided to have a pop at the world land speed record once more. Back in 2007, a small team of British engineers headed up by Richard Noble and Andy Green decided to have a pop at the world land speed record once more. A rocket scientist was brought in to design the largest hybrid rocket system ever developed in the UK, a structural engineer was brought in to design the car's internal structure and I was invited to join the team along with Ron Ayers to ensure that this car would, indeed, remain a car and stay firmly planted on the ground.

Video Friday is your weekly selection of awesome robotics videos, collected by your Automaton bloggers. We'll also be posting a weekly calendar of upcoming robotics events for the next two months; here's what we have so far (send us your events!): Let us know if you have suggestions for next week, and enjoy today's videos. Our BratWurst Bot is an autonomous robot that grills sausages all by itself. It is made of off the shelf robotic components: Universal Robots UR-10 arm, Schunk PG-70 gripper, two standard RGB cameras, normal grill tongs and gas grill.

Sokhela has both HIV and tuberculosis -- a brutal, one-two punch that's exacerbating epidemics of both diseases in South Africa. In most places in the country, where clinics are overtaxed, this would presage a wait of up to 10 hours. But here something different is happening. Staffers at computer monitors swiftly log in people and dispatch them for triage or, if they have tuberculosis, a special area away from others. Those who only need their antiretroviral (ARV) drugs walk directly to the pharmacists, who retrieve each patient's electronic medical record and use a robotic system to pull drugs from shelves and fill orders.

I was electrified by Jonathan Berger's music before I knew he wrote about music. His chamber works arise out of a lightning storm of modernist angles, dramatic and startling, though anchored to melodies that sail like a swallow, as one of his string quartets is called. His one-act operas Theotokia and The War Reporter, performed together in concert, match taut musical brocades to the hallucinations of, respectively, a schizophrenic, hearing voices of various mothers, and a photojournalist, based on Paul Watson, who won the 1994 Pulitzer Prize for his image of the corpse of an American soldier being dragged through the streets of Mogadishu. A few years ago, I read some of Jonathan's academic writing about music, which had a sharp focus on neurology and acoustics. He is a professor of music at Stanford, where he teaches composition, music theory, and cognition at the Center for Computer Research in Music and Acoustics. On a hunch that he could connect with a popular audience, I asked him to write an essay for Nautilus about how composers upend expectations to keep listeners off guard and engaged. That article, "Composing Your Thoughts," and his next one for Nautilus, "How Music Hijacks Our Perception of Time," which contain musical clips to illustrate his points, have been among our most popular articles. There's a certain amount of problem solving that happens in the context of a band of noise. For this month's issue I called Jonathan and was delighted to learn he had thought a lot about noise.

Internet access many be taken for granted by many, but some 4 billion people around the world are still missing out with an estimated 1.6 billion of those living in remote areas with no mobile network coverage. Facebook plans to tackle the problem with a range of technologies including its high-altitude solar plane Aquila, which has just completed its first successful test flight. The flight, which has just been confirmed by Facebook, took place on 28 June at Yuma Proving Ground (YPG) in Yuma, Arizona. Internet access many be taken for granted by many, but some 4 billion people around the world are still missing. The solar-powered aircraft is designed to beam internet access to hundreds of millions of people in hard-to-reach areas around the globe.

This will be the definitive forum on the shape of the next economy. Be part of the discussion and understand how the technological revolution will shape the future of work and business. "Could a machine do your job?" ask Michael Chui, James Manyika, and Mehdi Miremadi in a recent McKinsey Quarterly article, "Where Machines Could Replace Humans and Where They Can't Yet." "As automation technologies such as machine learning and robotics play an increasingly great role in everyday life, their potential effect on the workplace has, unsurprisingly, become a major focus of research and public concern. The discussion tends toward a Manichean guessing game: which jobs will or won't be replaced by machines? In fact, as our research has begun to show, the story is more nuanced. While automation will eliminate very few occupations entirely in the next decade, it will affect portions of almost all jobs to a greater or lesser degree, depending on the type of work they entail."

Over the course of the past year or so, there have been a number of incredible tech projects aimed at stopping the spread of Ebola. One approach that we've never come across before, however, involves plotting the possible spread of Ebola and other "filoviruses" of the same family by predicting which bat species they're most likely to be carried by. That's exactly the goal of a team of scientists, who recently used machine learning techniques to build just such a model. Their work may help prevent future spillover events in which it is important to predict which species of wildlife help spread contagion. "This work entailed collecting intrinsic features describing the world's bat species -- 1,116 species altogether -- and training a machine learning algorithm on these data to learn which features best predict the bat species that carry filoviruses," lead author of the study Barbara Han, a disease ecologist at the Cary Institute of Ecosystem Studies, tells Digital Trends.

If we let machines put us out of work, it will be because of a failure of imagination and the will to make a better future. "Could a machine do your job?" ask Michael Chui, James Manyika, and Mehdi Miremadi in a recent McKinsey Quarterly article, "Where Machines Could Replace Humans and Where They Can't Yet." "As automation technologies such as machine learning and robotics play an increasingly great role in everyday life, their potential effect on the workplace has, unsurprisingly, become a major focus of research and public concern. The discussion tends toward a Manichean guessing game: which jobs will or won't be replaced by machines? In fact, as our research has begun to show, the story is more nuanced. While automation will eliminate very few occupations entirely in the next decade, it will affect portions of almost all jobs to a greater or lesser degree, depending on the type of work they entail."