What hurts you makes you stronger as a couple. Researchers have found in a small study that S&M activities prompted hormonal changes that could make participants feel closer.
Also in today's links: possible best computer ever, a lame toy based on a good premise
Stay up to date on the latest news of the future of science and technology from your iPhone with full articles, images and offline viewing
Featuring every article from the magazine and website, plus links from around the Web. Also see our PopSci DIY feed
Share links with friends, comment on stories and more
In our December issue, Popular Science names the 100 best innovations of the year: bombproof wallpaper, self-parking cars, the fastest helicopter, and 97 more. Plus inventor profiles and videos.
Check out the best of what's new here.