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She discovered that a spike in the EEG data, a P300 signal, occurs in reaction to an event. Second-place recipient Navya Ramakrishnan designed a brain-computer interface to help those with paralysis and neuromuscular disorders do household tasks such as turning on a television.
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Instead of using eye movements, she used brain waves measured by an EEG headset to gauge activity. “That was definitely the starting point, when I thought about a way to have a universal communication-aid machine for ALS patients,” Ramakrishnan says. She says her inspiration came from the machine Steven Hawking built that used his eye movements to communicate. Ramakrishnan’s brain-computer interface was designed for people with paralysis and neuromuscular disorders including amyotrophic lateral sclerosis. Her interface uses brain signals to complete household tasks such as turning on a television. This year’s second-place recipient was Navya Ramakrishnan, a senior at Plano Senior High School, in Texas. Schumann says he plans to study electrical engineering at a technical university in Berlin. From there it’s forwarded to the National Oceanic and Atmospheric Administration for possible use in general weather forecasting. The data is then sent to the Citizen Weather Observer Program, a volunteer-based network.
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The software he designed allows for the radio weather data packets to be transmitted in real time from his radiosonde to an analysis unit in his home. The radiosonde’s location is uploaded to his balloon flight tracker, which he hopes will be of use to those needing weather data. He added GPS to track his radiosonde in real time. “The camera can take aerial images of the clouds,” he says, “which allows for a more accurate view of their formation and connections in comparison to a traditional radar system.” Schumann also developed an extension module with a camera to record additional data such as cloud formation. The radiosondes are equipped with a solar-powered battery, which is about 20 grams lighter than a lithium battery. His radiosonde provides several times more measurement data per day compared with traditional ones launched every two weeks. “In comparison to launching 2,000 to 5,000 balloons that stay up for just two to three hours, my balloon can stay up in the air for 52 days, so fewer balloons have to be launched,” he says.
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To address the problem, Schumann used layers of foil welded together, plus a heated Teflon wheel, to create a balloon that is able to withstand higher altitudes. There he learned that radiosondes have not significantly changed in the past 100 years.īecause of the increase in air pressure at high altitudes, weather balloons burst at around 35 kilometers. Schumann was motivated to improve radiosondes and weather balloons during a visit to a local meteorology museum.
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“In comparison to launching 2,000 to 5,000 balloons that stay up for just two to three hours, my balloon can stay up in the air for 52 days.” “Kathy” Land, the 2021 IEEE president, presented Schumann with this year’s scholarship. Schumann also received a complimentary IEEE student membership. The scholarship is administered on behalf of IEEE Educational Activities and is payable over four years of undergraduate university study. The award was established by the IEEE Foundation to acknowledge a deserving student for a project that demonstrates an understanding of electrical or electronics engineering, computer science, or other IEEE field of interest. His Small Radiosondes on a Great Mission project was showcased in May at the Regeneron International Science and Engineering Fair held in Atlanta.Īt a special awards ceremony, Schumann was caught by surprise when it was announced that his project received the IEEE Presidents’ Scholarship. The weather balloon he designed can stay in the air longer than traditional models as well. Schumann built a coin-size, solar-powered radiosonde that weighs 4.8 grams-far more compact than current models, which weigh about 96 g. The cost of replacing them adds up.Īmon Schumann, a senior at the Robert-Havemann-Gymnasium school, in Berlin, has invented eco-friendly, cost-effective solutions.Īmon Schumann’s radiosonde for weather balloons is equipped with a solar-powered battery and GPS. Out of the 75,000 radiosondes launched every year in the United States, only 20 percent are found and returned, according to the National Weather Service.
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Also, there’s a lot of waste.Īfter a few hours in the air, a weather balloon bursts and its radiosonde falls to the ground via a parachute. The balloons aren’t environmentally friendly, though, in part because they’re made out of nonrecyclable materials such as latex. at 18:00Įvery day thousands of weather balloons are released all over the world, using radiosondes to measure pressure, relative humidity, and temperature.