This guy built his own air conditioner with a cooler and PVC pipe for less than $50

Now that summer is in full swing, air conditioners are a necessity -- and one YouTuber is showing the world how to build one that operates using solar energy for under $50. A video from YouTuber desertsun02, a DIY solar power projects channel, is making the rounds on Facebook this morning and has been viewed nearly 3 million times, first spotted on How To Instructions.      In the video, desertsun02 shows viewers how to make a home-made AC Air Cooling unit that can get the air as cold as 42...