Liquid nitrogen — the real star of Linucon 2005 | A tangled braid of life and technology

Rob Landley (in a black T-shirt with caffeine formula) is mixing ice cream, to be frozen later with nitrogen vapor. Cathy Raymond (in a grey T-shirt) and other onlookers watch.

Making ice cream mixture for liquid nitrogen ice cream at Linucon 2005 — CIMG0867 In the Consuite, Rob Landley (in a black T-shirt with caffeine formula) is mixing ice cream, to be frozen later with nitrogen vapor. Cathy Raymond (in a grey T-shirt) and other onlookers watch.

In the Consuite, Rob Landley (in a black T-shirt with caffeine formula) is mixing the ice cream that’s quickly freezing after being doused with nitrogen gas.

Making ice cream with liquid nitrogen at Linucon 2005 — CIMG0868 In the Consuite, Rob Landley (in a black T-shirt with caffeine formula) is mixing the ice cream that’s quickly freezing after being doused with nitrogen gas.

Rob Landley (in a black T-shirt) is mixing the ice cream that’s quickly freezing after being doused with nitrogen gas. Cathy Raymond (standing, grey T-shirt) and other onlookers watch.

Makes ice cream with liquid nitrogen at Linucon 2005 — CIMG0869 Rob Landley (in a black T-shirt) is mixing the ice cream that’s quickly freezing after being doused with nitrogen gas.

Rob Landley and Cathy Raymond are getting ready to serve capsaicin-flavored liquid nitrogen ice cream, while Eric Raymond is buried in his book. The ice cream wasn’t very hot, it had just the right amount of “kick” one would want in ice cream.

Serving liquid nitrogen ice cream at Linucon 2005 — CIMG0871 Rob Landley and Cathy Raymond are getting ready to serve capsaicin-flavored ice cream, while Eric Raymond is buried in his book.