Reading

Neighbor-Source Heat Pump

https://xkcd.com/3099/

The installation of the pipes on the inside of the insulation can be challenging, especially when the neighbor could come home at any minute.

https://xkcd.com/3099/

Trojan Horse

https://xkcd.com/3098/

Ultimately, history would imperfectly record the story of the Foal of Troy.

https://xkcd.com/3098/

Bridge Types

https://xkcd.com/3097/

Pontoon bridges are just linear open-sided waterbeds.

https://xkcd.com/3097/

Check Engine

https://xkcd.com/3096/

They say it's probably safe to keep orbiting for a while, but if it stays on or starts flashing we might have to call someone.

https://xkcd.com/3096/

Archaea

https://xkcd.com/3095/

Under the two-domain system, anyone who punches you is technically an Archaean pathogen.

https://xkcd.com/3095/

Mass Spec

https://xkcd.com/3094/

Patients at least found it to be an improvement over Millikan's incredibly messy and unpleasant oil drop suspension procedure.

https://xkcd.com/3094/