What It Feels Like to Shoot With the Military’s Experimental Smart Scope

You’ve probably never fired an M4 carbine. Until a couple weeks ago, I hadn’t either. But at a recent DARPA demo day, I loaded a magazine (also a first for me), snuggled up to the deadly assault rifle, and looked through one of the most technologically advanced smart scopes ever built. Then I pulled the trigger. »4/29/15 12:09pm4/29/15 12:09pm

New 3D app lets you imagine living inside an orbital space habitat

What would it be like to live inside an orbital space colony? A new online app lets you glimpse the possibilities. Created by author Joan Slonczewski to tie in with her new novel The Highest Frontier, Frontera 3D takes you inside a rotating cylindrical colony, similar to the O'Neill cylinders envisioned in the 1970s… »9/19/11 5:30pm9/19/11 5:30pm