3D printing builds three-dimensional objects based on instructions in computer files.
3D printing builds three-dimensional objects based on instructions in computer files.
Scientists think the universe began with a bang. A big bang. The Big Bang theory (no, not the TV show) is the most widely accepted theory for how the universe started. How it will end…that’s a “dark” mystery.
Multiple reasons. For one, it costs a lot for biopharmaceutical companies to research and develop new medications.
The atmosphere and ocean are warming. Ice sheets and summer sea ice are shrinking. Sea level is rising. Heat waves are more frequent and intense. Cold snaps and extreme cold are less frequent. And those are just some of the changes.
The U.S. economy is large enough that, over the long term, immigration doesn’t have much effect overall on wages or the employment rate. When we have seen short-run impacts, they’ve mostly been in narrow segments of the population—people working in a specific industry and geographic area, for example.
Generally speaking, more secure than on a home computer or on a smartphone. But it depends on what you mean by “secure.”