Episodes
Kristen Grauman, professor of computer science at the University of Texas at Austin, and her team have taught an artificial intelligence agent how to do something that usually only humans can do—take a few quick glimpses around and infer its whole environment. That will be a critical skill for search and rescue robots that can enter a dangerous situation—like a burning building—and relay information back to firefighters or other personnel. To see an animation of how the new AI agent creates...
Published 06/17/19
One thing that sets humans apart from even the smartest of artificially intelligent machines is the ability to understand, not just the definitions of words and phrases, but the deepest meanings in human speech. Alex Huth, a neuroscientist and computer scientist, is trying to build an intelligent computer system that can predict the patterns of brain activity in a human listening to someone speaking. If a computer could begin to extract the same kinds of meaning from a set of words as a...
Published 04/26/19
We’re celebrating the 150th anniversary of the periodic table. Join us as we tour the cosmos, from the microscopic to the telescopic, with four scientists studying the role of four elements—zinc, oxygen, palladium and gold—in life, the universe and everything. Emily Que is a chemist who helped capture, for the first time on video, zinc fireworks that burst from an egg when it’s fertilized by sperm. Astronomer Michael Endl is searching for chemical signs of life in the atmospheres of...
Published 03/06/19
Scientists often talk about the people who mentored them, and the students and postdocs they supervise, in ways that sound like a family. Today, in the second of a two-part conversation, we listen in on two members of a well-known scientific lineage: Bill Press, a professor of computer science and integrative biology at the University of Texas at Austin and his former doctoral adviser, Kip Thorne, one of the recipients of the 2017 Nobel Prize in Physics for the discovery of gravitational...
Published 02/25/19
What’s it like for a scientist to work as an advisor on a major Hollywood film? In this first of a two-part conversation, Kip Thorne talks with his former graduate student Bill Press about the impact that a film like Interstellar can have on the public, balancing scientific accuracy and entertainment and what winning the Nobel Prize really says about a scientists’ worth. (BTW, Interstellar star Matthew McConaughey is also a UT Austin alum) Special thanks to the family of Bryce DeWitt and...
Published 01/22/19
The first week of October is like a science-lover’s World Series: Each year, the spotlight falls on high-impact science, when day after day, a series of Nobel Prizes and other prestigious awards are announced all in one week. This has been an especially exciting week for us here in UT Austin’s College of Natural Sciences. For the second year in a row, one of our alumni (James Allison) nabbed the Nobel Prize for physiology or medicine. What’s more, the Nobel Prizes given in the categories of...
Published 10/05/18
Last year, University of Texas at Austin alumnus Michael Young won the Nobel prize for discovering the molecular mechanism behind circadian rhythms. Circadian clocks are critical for the health of all living things, acting as the internal timekeepers in plants and animals that help to synchronize functions like eating and sleeping with our planet’s daily rhythm of light and dark. In today’s episode, Young reveals the series of lucky events that launched him into the forefront of circadian...
Published 09/27/18
Think about some of the most important decisions people make – who to hire for a job, which kind of treatment to give a cancer patient, how much jail time to give a criminal. James Scott says we humans are pretty lousy at making them. “I think there is room for machines to come into those realms and improve the state of our decisions,” said Scott. “That's going to involve humans and machines working together, however, not simply treating these decisions the way you might treat a microwave...
Published 09/06/18
What if people who lost a particular brain function—say, an Alzheimer's patient who can no longer make new memories—had the same option as many people who’ve lost limbs or other body parts—the chance to use technology to supplement what’s no longer there? Or what if you could boost a healthy person's brain, essentially giving them mental superpowers, like the ability to become a Kung Fu master by downloading new skills directly to your brain? Scientists are now working on brain-machine...
Published 06/28/18
Forty years ago, when James Allison had just gotten his PhD in biochemistry, he was intrigued by this far-out idea that was floating around about a new way to treat cancer. The idea—dubbed cancer immunotherapy—was to train the body’s immune system to attack cancer cells—the same way this system already goes after bacteria and viruses. He was one of the few people who actually believed it could work. In today’s episode, Allison—an alumnus of the University of Texas at Austin and the chair of...
Published 05/21/18
Climate change, vaccinations, evolution. Scientists sometimes struggle to get their message across to non-scientists. On the latest episode of the Point of Discovery podcast, what communications research can teach us about why science communication sometimes backfires, and what scientists can do about it. Today’s episode features Emma Dietrich, a PhD student in the Ecology, Evolution and Behavior graduate program at the University of Texas at Austin and a member of Austin Science Advocates....
Published 04/13/18
Jonathan Sessler was a college student when he was first diagnosed with Hodgkin’s lymphoma. Fortunately, he was also a chemistry major. After surviving radiation therapy, relapsing and then surviving extremely high doses of what he calls “rat poison” (a.k.a. chemotherapy), his oncologist challenged him: “You’re a chemist. Find new cancer drugs.” In the four decades since, he’s founded two companies, one of which commercialized a blockbuster drug for leukemia and was sold for $21 billion. The...
Published 03/02/18
The STEM fields – science, technology, engineering and math – have real work to do in terms of diversity. Right now, women make up only about 30 percent of the STEM workforce – and people identifying as black or Hispanic make up just 11 percent. What are the barriers to entry -- or the obstacles to staying in -- STEM? And how can we make sure smart, creative thinkers and problem solvers from diverse backgrounds feel welcome and included in these fields? We invited three leaders in science and...
Published 01/25/18
We recently invited three leaders in science and engineering at the University of Texas at Austin to talk about the lack of diversity in their respective fields – and ways to tackle the problem. We featured highlights from their conversation in the previous podcast. The episode you’re listening to right now is the full conversation. To hear the shorter, highlights episode, go to: https://soundcloud.com/point-of-discovery/tackling-science-and-engineerings-diversity-problem About Point of...
Published 01/25/18
Millions of children in the U.S. play a vital, but often overlooked, role in their families. These children of immigrants, known as “language brokers,” help their parents translate job applications, medical documents and bills into their native language. They also help them navigate a completely alien culture. Researchers like Su Yeong Kim, in the Department of Human Development and Family Sciences at the University of Texas at Austin, are debating whether being a language broker is good for...
Published 12/14/17
Astronomers have long been able to watch the universe’s blockbuster special effects unfold in dazzling 3D Technicolor. But until now, it’s been like watching a silent movie. Today that all changes. Scientists announced this morning that they have for the first time ever detected both light and gravitational waves from a massive explosion in space caused by the collision of two super-dense neutron stars. On today’s show, we talk to astrophysicist Pawan Kumar about what this breakthrough means...
Published 10/16/17
A team of scientists and engineers led by Livia S. Eberlin at The University of Texas at Austin has invented a powerful tool that rapidly and accurately identifies cancerous tissue during surgery, delivering results in about 10 seconds. The MasSpec Pen is an innovative handheld instrument that gives surgeons precise diagnostic information about what tissue to cut or preserve, helping improve treatment and reduce the chances of cancer recurrence. The research is described in the Sept. 6...
Published 09/07/17
Quantum computers might sound like science fiction. A fully functioning quantum computer could complete calculations in a matter of seconds that would take a conventional computer millions of years to process. Science fiction or not, they’re already here. Scientists at Google, Microsoft, IBM and elsewhere are building and studying them. At this point, they’re not very powerful. But Scott Aaronson, a theoretical computer scientist at the University of Texas at Austin, believes in the next...
Published 07/11/17
Gulf Corvina look pretty ordinary—they’re a couple of feet long and silvery. Yet the sounds they make—when millions get together to spawn—are a kind of wonder of the natural world. It’s also why they are in danger. Gulf Corvina live in only one place in the world—the Gulf of California. A decade ago, the Mexican government asked marine biologist Brad Erisman and his colleagues to study the Corvina. They were worried that heavy fishing might cause the population to collapse. When Erisman put a...
Published 04/24/17
Worried that smart robots are taking over the world? You’ll be relieved to know they still have a long way to go. That is unless you’re an artificial intelligence researcher like Peter Stone. One big challenge facing robots that walk and run is that they fall over a lot. Take for example the annual RoboCup competition in which small human-like robots play soccer. Even with the best minds in computer science behind them, they’re about as graceful as toddlers. Now neuroscientist Michael Mauk...
Published 03/15/17
In honor of Valentine’s Day, we’re speaking with Lisa Neff, a researcher studying what makes happy, healthy romantic relationships tick. Neff is an associate professor in the Department of Human Development and Family Sciences at the University of Texas at Austin. She answers several burning questions, including: What are the health benefits of romantic relationships? How can newlyweds avoid communication breakdowns that result from external stress? and, Do optimists make better...
Published 02/11/17
Adron Harris, director of the Waggoner Center for Alcoholism and Addiction Research at The University of Texas at Austin, and his team mapped the differences in gene expression between an alcoholic's brain and a non-alcoholic's brain. They found that, as a person becomes dependent on alcohol, thousands of genes in their brains are turned up or down, like a dimmer switch on a lightbulb, compared to the same genes in a healthy person's brain. The scientists are now using an innovative technique...
Published 01/23/17
These teeny shrimp-like critters at the bottom of the ocean food web seem totally unimportant. But throw in an oil spill and some well-intentioned human intervention and they can have a huge impact, right up to the top of the food web, including sea turtles, dolphins and humans. Meet the mighty copepod. About Point of Discovery Point of Discovery is a production of the University of Texas at Austin's College of Natural Sciences. You can listen to all our episodes at @point-of-discovery ....
Published 12/15/16
This fall marks the 15th anniversary of the U.S. anthrax letter attacks that sickened dozens of people and killed five. At the time, there was no effective treatment for a late stage infection. The attacks accelerated work already underway at the University of Texas at Austin. Brent Iverson, George Georgiou and Jennifer Maynard borrowed a page from Mother Nature's playbook to develop the world's first treatment for late stage inhalation anthrax. Tell Us What You Think Take our short survey...
Published 10/21/16
The New Horizons spacecraft brought humanity face to face with the last unexplored planet in our solar system: Pluto. What we're learning is amazing. But, time and again, the mission almost didn't happen. University of Texas at Austin alumnus Alan Stern describes the challenges, and the joys, of the last first mission to a planet. Tell Us What You Think Take our short survey at: http://txsci.net/utpodcastsurvey About Point of Discovery Point of Discovery is a production of the...
Published 09/13/16