Take 5: Watch high-​​flying hot dog cruise into the Charles River

Red Bull Flugtag, a demon­stra­tion in avi­a­tion exper­i­men­ta­tion, is coming to Boston Sat­urday. Here are five things you need to know about this unique event, including some quirky facts about the North­eastern team that will be com­peting as well as its flying hot dog. That’s right…flying hot dog.