iamcal.com Since May 2000

Turning a roll of aluminium foil into a knife, without any special tools

Watching the full 11 minutes is time well spent

If you liked paperclips, a dark room, etc but you only want to spend 10-15m playing then, Seedship is definitely worth checking out. More games like this please!

Long time readers will be familiar with my obsession with public transport, specifically the London Underground.

Gizmodo's analysis of Tube wifi tracking data is fascinating - including some of the truly insane paths people have taken between between King's Cross and Waterloo

Jalopnik's in depth look at Janet airplanes, the secret airline that flies between Las Vegas and secret government facilities is crazy interesting.

There are a ton of links off to a mix of conspiracy theories and stuff that really happened, including the scary-looking X-37B robotic space plane.

Some holes to fall down:
• The rumored Aurora reconnaissance aircraft
• Rat 55, the stealth 737

I recently rode the tube (London Underground) during super hot temperatures and the mechanisms to keep it cool in the face of some complex problems are pretty fascinating.