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Georgia Tech

Science

Researchers reverse the aging process for human adult stem cells

By now, most people are probably aware of the therapeutic value of stem cells, as they can become any other type of cell in the human body. One of their main duties, in fact, is to replace those other cells as they degrade. Once people reach an advanced age, however, even the stem cells themselves start to get old and nonfunctional - when the cells that are supposed to replace the other cells can't do their job anymore, age-related tissue problems start occurring. A team of researchers from the Buck Institute for Research on Aging in collaboration with the Georgia Institute of Technology, however, may be on the way to solving that problem. They have succeeded in reversing the aging process in human adult stem cells.Read More

Wearables

Glove with vibrating fingertip enhances user's sense of touch

Studies have shown that with the right amount of white noise in the background, peoples’ sight, hearing, balance control and sense of touch improve. Utilizing stochastic resonance, which is the principle at work in white noise, researchers at the Georgia Institute of Technology have discovered that the sense of touch can also be improved by applying vibrations to a person’s finger. They have been testing a glove that incorporates a prototype fingertip-buzzing device, that could ultimately lead to products worn by people with nerve damage, or whose jobs require exceptional manual dexterity.Read More

Electronics

Scavenging ambient electromagnetic energy to power small electronic devices

As you sit there reading this story you’re surrounded by electromagnetic energy transmitted from sources such as radio and television transmitters, mobile phone networks and satellite communications systems. Researchers from the Georgia Institute of Technology have created a device that is able to scavenge this ambient energy so it can be used to power small electronic devices such as networks of wireless sensors, microprocessors and communications chips. Read More

Computers

LiquidText software designed for active reading

The more ways in which you can engage yourself with what you're reading, the more likely you are to understand and remember it. It's a practice known as active reading, and it can involve taking notes, highlighting passages, setting aside snippets of important information, or even reading text aloud. While some programs already exist that facilitate the active reading of digital documents, a team from the Georgia Institute of Technology have developed what they believe is a better approach. It's called LiquidText, and it was developed around touchscreen technology.Read More

Environment

New process allows fuel cells to run on coal

Lately we’re hearing a lot about the green energy potential of fuel cells, particularly hydrogen fuel cells. Unfortunately, although various methods of hydrogen production are being developed, it still isn’t as inexpensive or easily obtainable as fossil fuels such as coal. Scientists from the Georgia Institute of Technology, however, have recently taken a step towards combining the eco-friendliness of fuel cell technology with the practicality of fossil fuels – they’ve created a fuel cell that runs on coal gas. Read More

Science

Scientists working on human-dolphin communication device

Despite his annoyingly cutesy synthetic voice, Darwin the Dolphin on the TV series SeaQuest DSV did present an intriguing possibility – what if we could create a dolphin language translator? Such a device may no longer be limited to the realm of science fiction, as two scientists are currently developing an underwater computer that they hope to someday use for two-way communications with wild dolphins.Read More

Robotics

Autonomous robots could collaborate on mapping hazardous environments

Imagine you're a firefighter arriving at a burning building, but you have no idea what the interior layout of that building is. Do you just enter, then risk your life by randomly walking up and down smokey hallways looking around? What would work better would be if someone or something could quickly map out the building first, then you could take that information and concentrate on getting directly where you need to go. That's the idea behind the U.S. Army's Micro Autonomous Systems and Technology (MAST) Collaborative Technology Alliance Program, which would see swarms of small rolling, hopping, crawling or flying robots working together on reconnaissance missions in civilian or military applications.Read More

Robotics

Lizard-inspired robot can swim through granular material

When the sandfish lizard wishes to escape predators, it can actually dive beneath the surface of the sand, and then swim through it. Inspired by the sandfish, researchers at the Georgia Institute of Technology have created an undulating robot that can likewise swim through a granular medium. While that medium has so far consisted of quarter-inch plastic balls in a lab setting, the team hopes that their robot – or one of its descendants – could someday be used to tunnel through debris to rescue earthquake victims.Read More

Electronics

Squeeze power: First 'practical nanogenerator' developed

For the past several years, scientists from around the world have been engaged in the development of nanogenerators – tiny piezoelectric devices capable of generating electricity by harnessing minute naturally-occurring movements, such as the shifting of clothing or even the beating of a person's heart. So far, while they may have worked in principle, few if any of the devices have been able to generate enough of a current to make them practical for use in consumer products. Now, however, scientists from the Georgia Institute of Technology are claiming to have created "the world's first practical nanogenerator."Read More

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