Do you have what it takes to be a scientist? Page 1, Page 2, Page 3 Lucia Petkovic Chemical Engineer, Idaho National Laboratory Lucia Petkovic understands atoms. The chemical engineer from Argentina uses her knowledge of the inner workings of matter to design products that make the world a safer place. For example, she is working on developing clean hydrogen fuels for automobiles. “My job is like solving a puzzle. It’s a lot of fun.” Challenge yourself: Hear Lucia Petkovic talk about her work in Spanish (MP3 podcasts). 1. Transmutation of Matter 2. A World in Flux 3. A Pollution-Free World 4. Spaghetti or Powdered Milk? 5. It’s Not Always a Party Need podcast translations in English? Click here. Are you as ambitious as Lucia Petkovic? It takes some effort, but you can find out how much energy is stored in a peanut.   Jose Rodriguez Chemist, Brookhaven National Laboratory Jose Rodriguez believes that a sustainable future depends on understanding nature’s laws. That’s why this Venezuelan-born chemist is studying bacteria to find a better way to produce hydrogen – a promising low-pollution fuel. It’s also why he’s using the world’s most powerful x-rays to examine materials at the atomic level. And speaking of pollution, find out more about your nose and the junk in the air. Jose Zayas Engineer, Sandia National Laboratories A wind farm on the open ocean? Jose Zayas of Sandia National Laboratories is confident that he can set up hundreds of wind turbines offshore to convert strong sea breezes into wind energy. “I’m a strong believer that everything’s possible,” says the Puerto Rican-born engineer. And, he doesn’t mind climbing a hundred feet in the air, either! Start up a virtual wind turbine. Page 1, Page 2, Page 3