months for this story. can a device build a slice? 3-d food printers are really happening. thank you for that or smerk for short. it creates a universal food processor. that s the diagram there. they hope that some day they will all be making meals from cartridges of powder. he thinks it can help end world hunger. you heard me, fellas. i am beginning to sound like somebody who does tv in the morning. for now, they are working on printing food for astronauts on long space missions. here is how they prepare a meal in space.