Popular Science articles about Mathematics & Economics

The Trace app allows you to share the walk with a friend.

New report: Forests could be the trump card in efforts to end global hunger

A child's daily requirement for vitamin A can be met by around 25 g of a deep orange-fleshed mango variety.About one in nine people globally still suffer from hunger with the majority of the hungry living in Africa and Asia. The world's forests have great potential to improve their...

Good things in store for retailers

Shopping online or in catalogs is great for many reasons: to while away time on a snowy day; to avoid the holiday crush at the local mall; to do ultra-efficient...

New genetic test will improve biosecurity of honey bees around the globe

A genetic test that can prevent the entry of 'killer' bees into Australia and their spread around the world has been created by researchers at the University of Sydney and...

Graphics in reverse

Most recent advances in artificial intelligence -- such as mobile apps that convert speech to text -- are the result of machine learning, in which computers are turned loose on...

The brain in the supermarket

Say you're out shopping for basic household goods -- perhaps orange juice and soup. Or light bulbs. Or diapers for your young child. How do you choose the products you...

Does your password pass muster?

"Create a password" is a prompt familiar to anyone who's tried to buy a book from Amazon or register for a Google account. Equally familiar is that red / yellow...

State funding boosts stem cell research in California, other states

When federal funding regulations created limitations on human embryonic stem cell research, several states created their own funding programs. A new study analyzed stem cell funding programs in four states...

Urban pollinators get the job done, SF State study finds

These are tomato plants, with bags placed over some floral clusters to prevent bees from visiting and other floral clusters left open to the air.Having trouble getting those fruits and vegetables in your backyard to grow? Don't blame the bees.

Power efficiency in the violin

Some of the most prized violins in the world were crafted in the Italian workshops of Amati, Stradivari, and Guarneri -- master violinmaking families from the 17th and 18th centuries...

Novel method projects growth potential of new firms

New businesses spring up all the time in the U.S. But which ones have the greatest ability to become big? A method developed by MIT researchers, based on an empirical...

Fishermen, communities need more than healthy fish stocks

A typical day at the fish market in Dakar, Senegal.The Alaska salmon fishery is touted as one of the best in the world. When measured with an ecological yardstick, it is -- fish stocks are healthy and the fishery...

New centimeter-accurate GPS system could transform virtual reality and mobile devices

Researchers in the Cockrell School of Engineering at The University of Texas at Austin have developed a centimeter-accurate GPS-based positioning system that could revolutionize geolocation on virtual reality headsets, cellphones...

Sustainability progress should precede seafood market access, researchers urge

Demand for seafood from wild fisheries and aquaculture around the world has nearly doubled over the past four decades. In the past several years, major retailers in developed countries have...

Patents forecast technological change

How fast is online learning evolving? Are wind turbines a promising investment? And how long before a cheap hoverboard makes it to market?

How are ordinary consumers transforming the fashion business?

One of the most important shifts of the 21st century is the ability of consumers to participate in markets they love such as music and fashion. A new study in...

Study maps development 1 county at a time

Dr. Giorgos Mountrakis of ESF is pictured.Researchers at the SUNY College of Environmental Science and Forestry (ESF) have developed a county-by-county map of the United States' "lower 48" that tells a story of land cover and...

The Lancet: Obesity Series exposes 'unacceptably slow' progress in tackling soaring global obesity rates over last decade: Global failure to tackle obesity epidemic demands new ways of thinking, say leading experts

Global progress towards tackling obesity has been "unacceptably slow," with only one in four countries implementing a policy on healthy eating up to 2010, according to a major new six-part...

Social network analysis privacy tackled

Protecting people's privacy in an age of online big data is difficult, but doing so when using visual representations of such things as social network data may present unique challenges,...

Unraveling the complex web of global food trade

Growing global trade is critically important for providing food when and where it's needed -- but it makes it harder to link the benefits of food and the environmental burden...

F-bombs notwithstanding, all languages skew toward happiness

Whether it's Arabic movie subtitles, books in Chinese, Spanish Twitter, German websites, or music lyrics in English -- a study published in the <i>Proceedings of the National Academy of Sciences</i>, by scientists at the University of Vermont and The Mitre Corporation, found a clear positive bias in human language. In other words, we -- humanity -- "use more happy words than sad words.In 1969, two psychologists at the University of Illinois proposed what they called the Pollyanna Hypothesis -- the idea that there is a universal human tendency to use positive words...

Programming safety into self-driving cars

The driving routes (in green) computed by a Lexicographic Value Iteration (LVI) algorithm for an attentive driver (above) and a tired driver (below) based on traffic and road conditions.For decades, researchers in artificial intelligence, or AI, worked on specialized problems, developing theoretical concepts and workable algorithms for various aspects of the field. Computer vision, planning and reasoning experts...

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