Narrator:    This is Science Today. The NASA Ames Research Center in Moffett Field, California is home to the world's largest, full-scale wind tunnel, which enables various kinds of scientific and engineering research — including testing the fuel efficiency of trucks using technology developed by researchers at the Lawrence Livermore National Laboratory.

Salari:        We are very lucky that we could go and use the facility to test our devices and I think most of the industry — I'm talking about truck industry — they don't have the resources or the ability to get into this type of facility to test. So, I think we are fortunate that we have the option of testing in this facility.  

Narrator:    Kambiz Salari is a senior scientist at the Livermore Lab and they have developed devices for tractor-trailers that can reduce aerodynamic drag and boost fuel efficiency by as much as 12 percent.

Salari:        So, this is a huge, near-term impact for this country and we are hoping that within two to three years, we make these devices available to the public.

Narrator:    For Science Today, I'm Larissa Branin.