![As a helium shortage looms, "vacuum balloons" could save physics, medicine, and birthday parties | Salon.com As a helium shortage looms, "vacuum balloons" could save physics, medicine, and birthday parties | Salon.com](https://mediaproxy.salon.com/width/1200/https://media.salon.com/2020/09/balloon-helium-can-0924201.jpg)
As a helium shortage looms, "vacuum balloons" could save physics, medicine, and birthday parties | Salon.com
![Amazon.com: Happy Birthday Foil Balloons Round Mylar Helium Balloon Party Decorations Supplies 18 Inch Pack of 6 : Toys & Games Amazon.com: Happy Birthday Foil Balloons Round Mylar Helium Balloon Party Decorations Supplies 18 Inch Pack of 6 : Toys & Games](https://m.media-amazon.com/images/I/81C50P7vrPL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Happy Birthday Foil Balloons Round Mylar Helium Balloon Party Decorations Supplies 18 Inch Pack of 6 : Toys & Games
![Amazon.com: Helium Tank for Balloons At Home, 14.9 Cu Ft Helium Balloon Pump Kit with 50 Assorted Latex Balloons, White Curling Ribbon and Wholesalehome Balloon Tie Tool : Home & Kitchen Amazon.com: Helium Tank for Balloons At Home, 14.9 Cu Ft Helium Balloon Pump Kit with 50 Assorted Latex Balloons, White Curling Ribbon and Wholesalehome Balloon Tie Tool : Home & Kitchen](https://m.media-amazon.com/images/I/71D76GwZf9L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Helium Tank for Balloons At Home, 14.9 Cu Ft Helium Balloon Pump Kit with 50 Assorted Latex Balloons, White Curling Ribbon and Wholesalehome Balloon Tie Tool : Home & Kitchen
![A balloon filled with helium or hydrogen gas goes vertically upward into the sky. Does it infinitely keep on going up? A balloon filled with helium or hydrogen gas goes vertically upward into the sky. Does it infinitely keep on going up?](https://search-static.byjusweb.com/question-images/byjus/_52d4604d2f3e13fd08ff695b3f44b149bba8547720160627-28069-hldej0.png)