Cracker question because helium balloons are actually a pretty controversial topic. Some people argue that they are harmful to the environment because on returning to Earth, animals mistake them ...

Photo: Eugene Gologursky/Getty Images for Macy's, Inc. Why don’t the Macy’s Thanksgiving Day Parade balloons fly away? With so much helium inside them, the Macy’s Thanksgiving Day Parade ...

The balloons, which are inflated with helium, float up to 70,000 feet above ... the balloon can send images directly to firefighters in real time over the course of a fire, which isn’t possible ...

Chef Grant Achatz serves up some very unusual dishes, and one of the most popular is an edible helium balloon. Customers are served the balloons and encouraged to suck in the helium before eating it.