![PBS NewsHour - Segments show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/082/426/small/pbs-newshour-segments.png)
Summary: New York City has been known for its pizza for decades, but now a surprising oven innovation is attracting new attention. At Columbia University, a lab is crafting ways to improve nutrition by 3-D printing pizza to precise dietary specifications -- and cooking it with laser beams. Science producer Nsikan Akpan shares this first-hand look at how engineers are lighting up new ways to cook a slice.