New York's subway authority MTA has begun testing a massive inflatable subway tunnel plug designed to combat flooding, such as that experienced during Hurricane Sandy.<br />The 30-foot-long, 14-foot-diameter plug was tested in an unused subway tunnel on Wednesday, according to the New York Daily News.<br />The inflatable subway plug can be inserted into a tunnel and inflated within 30 minutes to protect the subway system and crucial infrastructure such as signals, switches and electrical relays from water damage.<br />The plug is made of three layers, including a polyurethane inner and two toughened outer layers of Vectran. Once inflated, the air pressure creates friction that holds the plug in place.<br />Eight tunnels were flooded during Hurricane Sandy in October resulting in billions of dollars worth of damage.<br /><br />FOR MORE TOMONEWS US, GO TO:<br />http://www.youtube.com/subscription_center?add_user=TomoNewsUS <br /><br />FOR MORE FUNNY TAIWANESE ANIMATIONS, GO TO: http://www.youtube.com/subscription_center?add_user=NMAWorldEdition <br /><br />FOR MORE FUNNY TAIWANESE ANIMATIONS IN ENGLISH, GO TO: http://www.youtube.com/subscription_center?add_user=NMAtv <br /><br />FOR MORE TOMONEWS JP, GO TO: http://www.youtube.com/subscription_center?add_user=TomoNewsJP <br /><br />FOR MORE APPLE DAILY ENGLISH, GO TO: http://www.youtube.com/subscription_center?add_user=AppleDailyEnglish <br /><br />CHECK OUT THE ODDBODS!<br />http://www.youtube.com/user/nxTomo