Because it's really hot here in the DC area - all about Air Conditioning: invention, historical reactions, Arthur Miller column on the days before air-conditioning, more. Related, sort of: one way to make good use of the heat wave - how to bake cookies on your dashboard, step by step.
10 Most Muscular Dogs of All Time.
WHO (World Health Organization) warns you not to drink camel urine.
10 Animal-Plant Mash-Ups That Would Be Unstoppable Killers.
One of my favorite Father's Day stories (NSFW- language).
ICYMI, last Friday's links are here, and include the 75th anniversary of Dunkirk, time-lapse videos of seeds turning into vegetables, how to turn a stadium full of people into thousands of pixels, and how to make an untraceable gun.