helium balloon
21helium — noun Helium is used before these nouns: ↑balloon …
22balloon mail — noun mail (usually for weight reasons in the form of a postcard) carrying the name of the sender by means of an unguided hydrogen or helium filled balloon …
23balloon — An unpowered aircraft constructed from a flexible nonporous bag inflated normally with helium or any other light gas or heated air. Usually equipped with a basket or suspended gondola. See balloon classification …
24DHL Balloon — Coordinates: 1°17′54.5″N 103°51′25.8″E / 1.298472°N 103.857167°E / 1.298472; 103.857167 …
25Gas balloon — A gas balloon is any balloon that stays aloft due to being filled with a gas less dense than air or lighter than air (such as helium or hydrogen). A gas balloon may also be called a Charlière for its inventor, the Frenchman Jacques Charles. Today …
26Moored balloon — Moored balloons can carry instruments and sensors for long durations that are impractical for other aircraft …
27Obtention de l'helium — Hélium Traduction à relire Helium → …
28Hot air balloon — This article is about hot air balloons themselves. For the associated activity, see hot air ballooning. For the rock opera, see Hot Air Balloon (rock opera). For the song, see Hot Air Balloon (song). Hot air balloon in flight …
29Toy balloon — A toy balloon is an inflatable object which is often made of plastic or natural, biodegradable rubber. Rubber balloonsNatural Rubber, also known as latex, is a highly flexible substance which is extracted from certain plants. Latex balloons… …
30Columbia Scientific Balloon Facility — Coordinates: 31°46′43″N 95°42′52″W / 31.77861°N 95.71444°W / 31.77861; 95.71444 …
