The EOS 60D (my camera at the moment) offers a range of three Auto focus (AF) modes (One Shot, AI Focus and AI Servo). One shot — for still subjects AI Focus — automatic switching of AF mode AI Servo — for moving subjects This is a really good feature to know about and I suggest you learn it. It can make the difference between getting the shot and not getting the shot. Personally, I don’t see much of a reason to use...

“Doctors have traditionally recommended mouth-to-mouth rescue breathing in addition to chest compressions during cardiopulmonary resuscitation (CPR), but recent studies suggest that doesn’t help most patients.” “People used to be told to give two breaths for every 15 chest compressions. That formula changed in 2005 to two breaths for every 30 compressions.” Today, we are now told to only do chest compressions,...