xkcd with captions

I am a fan of Randall Munroe's xkcd comic. I read it on a regular basis and enjoy the mouseover texts that come with the comics, but those can't easily be read on mobile devices. So this website has an RSS feed which pulls out the text and places it under the image. The feed links back to xkcd.com. Enjoy. This page only shows the latest entries.

Siege Engine

They initially thought the containment structure alone would be sufficient, but for good measure they decided to include the Elephant's Foot inside.

Forms of Water

The 'light' refers to bremsstrahlung.

Vulnerability

Other numbers are largely unaffected, but anyone using '4' for their certificate key is urged to upgrade to '5'.

Fusion Device

I don't see why people have trouble doing this at room temperature. Using hot rivets would honestly have been MORE work.