Yes you read it right, Heather Dewey-Hagborg makes 3D portraits from the DNA collected from objects like cigarette butts or chewing gums she picks from sidewalks, tossed away by strangers.
You don't need Photoshop or some other advanced piece of software to resize a large number of images at once. You can use Microsoft Office Picture Manager which is part of the Office suite.
If you dont't want that every time you take a picture with your Android device, it gets instantly uploaded to your Google+ profile, this tutorial's for you.
Pretty simple and not to long Photoshop tutorial, where you will add a random photo of a person onto a rock and then make it look like it's been engraved.