Unlock Your Inner Rain Man by Electrically Zapping Your Brain

Electrically stimulating the brain could make you smarter. Image: Allan Snyder

Imagine a creativity cap. A device that would free you, if only momentarily, from your mindsets, from your prejudices, from the mental blocks to creativity.

These words are emblazoned on the website Creativitycap.com, and they represent the vision of neuroscientist Allan Snyder. Snyder believes we all possess untapped powers of cognition, normally seen only in rare individuals called savants, and accessing them might take just a few jolts of electricity to the brain.

It sounds like a Michael Crichton plot, but Snyder, of the University of Sydney, Australia, says he wouldn’t be surprised to see a prototype of the creativity cap within a couple of years. His research suggests that brain stimulation improves people’s ability to solve difficult problems. But Snyder’s interpretation of his findings remains controversial, and the science of using brain stimulation to boost thinking is still in its early stages.

“I think it’s a bit of a minefield,” said psychologist Robyn Young of Flinders University in Australia, who has tried to replicate Snyder’s early experiments. “I’m not really sure whether the technology is developed that can turn it into a more accurate science.”

Snyder has long been fascinated by savants — people with a developmental brain disorder (often autism) or brain injury who display prowess in a particular area, such as mathematics, art or music, which far exceeds the norm. Kim Peek, who provided the inspiration for Dustin Hoffman’s character in the movie “Rain Man,” was a savant who could memorize entire books after a single reading, or instantly calculate what day of the week any calendar date fell on. But he had a severe mental disability that prevented him from performing simple actions such as buttoning his shirt.

Automakers Show Interest in an Unusual Engine Design

The Scuderi engine could substantially improve fuel consumption by storing compressed air.

 

BY KEVIN BULLIS

$50 million engine: It took Scuderi Group most of the $65 million it’s raised so far to develop just one engine, the prototype shown here. It’s a split-cycle two-cylinder engine, in which one cylinder compresses air and the other combusts a fuel-air mixture. 

Credit: Scuderi

Scuderi's Split-Cycle Engine Scuderi Group

An engine development company called the Scuderi Group recently announced progress in its effort to build an engine that can reduce fuel consumption by 25 to 36 percent compared to a conventional design. Such an improvement would be roughly equal to a 50 percent increase in fuel economy.

Sal Scuderi, president of the Scuderi Group, which has raised $65 million since it was founded in 2002, says that nine major automotive companies have signed nondisclosure agreements that allow them access to detailed data about the engine. Scuderi says he is hopeful that at least one of the automakers will sign a licensing deal before the year is over. Historically, major automakers have been reluctant to license engine technology because they prefer to develop the engines themselves as the core technology of their products. But as pressure mounts to meet new fuel-economy regulations, automakers have become more interested in looking at outside technology.

A conventional engine uses a four stroke cycle: air is pulled into the chamber, the air is compressed, fuel is added and a spark ignites the mixture, and finally the combustion gases are forced out of the cylinder. In the Scuderi engine, known as a split-cycle engine, these functions are divided between two adjacent cylinders. One cylinder draws in air and compresses it. The compressed air moves through a tube into a second cylinder, where fuel is added and combustion occurs.

Splitting these functions gives engineers flexibility in how they design and control the engine. In the case of the Scuderi engine, there are two main changes from what happens in a conventional internal-combustion engine. The first is a change to when combustion occurs as the piston moves up and down in the cylinder. The second is the addition of a compressed-air storage tank.

 

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A Way to Make the Smart Grid Smarter

Kevin Bullis @ technologyreview.com states that new solid-state power-management devices will charge cars fast and make the power grid more flexible and efficient.

Smart Transformer: A prototype of a smart solid-state transformer from the Electric Power Research Institute. It’s smaller and more versatile than today’s transformers. The module on the left converts high-voltage alternating current from the grid to direct current. On the right is an inverter that converts that power to the 120-volt AC that comes out of standard wall outlets. To the right of the outlets are two more power interfaces, one for 240-volt AC power and one for 400-volt DC. 
Credit: EPRI

New semiconductor-based devices for managing power on the grid could make the "smart grid" even smarter. They would allow electric vehicles to be charged fast and let utilities incorporate large amounts of solar and wind power without blackouts or power surges. These devices are being developed by a number of groups, including those that recently received funding from the new Advanced Research Projects Agency for Energy (ARPA-E) and the National Science Foundation.

As utilities start to roll out the smart grid, they are focused on gathering information, such as up-to-the-minute measurements of electricity use from smart meters installed at homes and businesses. But as the smart grid progresses, they'll be adding devices, such as smart solid-state transformers, that will strengthen their control over how power flows through their lines, says Alex Huang, director of a National Research Foundation research center that's developing such devices. "If smart meters are the brains of the smart grid," he says, "devices such as solid-state transformers are the muscle." These devices could help change the grid from a system in which power flows just one way—from the power station to consumers—to one in which homeowners and businesses commonly produce power as well.

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Twitter's Biz Stone On Starting A Revolution

Fresh Air from WHYY Transcript

 

A visualization of how many tweets were sent on New Year's Eve 2010 in the United States.

Twitter's Biz Stone On Starting A Revolution:

On his reaction when the Internet was blocked during the recent Egypt protests

"Sadly, we've seen this happen. We've seen our services shut down before, but it was shocking to see the entire Internet shut down [in Egypt]. We'd talked about this before privately amongst ourselves. You can shut down a service and yet people will find ways to communicate. But we joked amongst ourselves [that] you'd have to shut down the entire Internet, you'd have to shut down the entire mobile phone structure if you really wanted to stop people from communicating. And then suddenly, we have news that the Internet is being shut down. And that was just an amazing thing to think about. Because you're not just shutting down communication between people who may or may not be opposing your regime, you're shutting down everything — commerce, all communication among individuals, emergency communication, everything. That's just mind-blowing to me."

 

"How a revolution comes to be is a mystery to me," he says. "It's important to credit the brave people that take chances to stand up to regimes. They're the star. What I like to think of services like Twitter and other services is that it's kind of a supporting role. We're there to facilitate and to foster and to accelerate those folks' missions."

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