Make your own Air Conditioner
Time to prepare for that upcoming insufferable summer heat.
For real. This tutorial actually works.
Instead of freon, you will be using cold water from an ice bucket to run through copper tubing.
As Rube Goldberg as this appears, this very principle of cooling is employed, famously, at a landmark Union Square insurance tower...to this very day. This solution consumes a lot less electricity than standard air conditioning as well!