Novak Djokovic (4) moved past Botic van de Zandschulp in straight sets yesterday evening, claiming a historic 400th Grand Slam win as he did. But the Serb flirted with controversy as he did, lucky to dodge a code violation after narrowly missing the head of a ball girl at the net in the second set. Now, if you're like me, you prefer to see Djokovic working as a heel rather than a face --
Extreme heat reduces dairy cows' ability to produce milk by 10%. Just one hour of wet-bulb temperature above 26C can reduce a cow's daily milk production by 0.5%. Exposure to high temperatures also has a prolonged effect, with milk production still lower than typical levels up to 10 days after the initial hot day.