http://www.esru.strath.ac.uk/EandE/Web_sites/09-10/Hybrid_systems/seasonal-storage.htm
http://www.gshp.org.uk/Natural_Cooling.html
http://large.stanford.edu/courses/2010/ph240/reinhardt1/
Burn iso with dd
sudo dd bs=4M if=Downloads/ubuntu-19.04-desktop-amd64.iso of=/dev/sdb conv=fdatasync status=progress