- 3-D printing is all the rage. You can hit a button on your computer, which sends a file to a printer, which produces a small 3-D object out of plastic. It's a cool technology, but it's not exactly a hands-on way to make things.
The little blue bird is flying high. Stronger-than-expected financial results pushed Twitter's stock sharply higher on Tuesday after the short messaging service said its revenue more than doubled in the second quarter.