Ship floating in air!
空気ガスより軽くて重い
ガスの密度
空気より重い気体または軽い気体を知る簡単な方法。第 1 回化学チュートリアル
Adam Savage goes high and low on Mythbusters
Speak Like Darth Vader with Sulfur Hexafluoride
Propane, heavier than air
Carbon Dioxide CO2 is Heavier than Air Demonstration
このボートは空中に浮かびます! |探査 DIY SCI
Co2 is heavier than air
六フッ化硫黄 - ディープボイスガス
Heavier than Air Fuel Vapor Behavior
一酸化炭素は空気より重いですか?
SF6 Denser than air - science experiment
Simple Science Experiment | Co2 is heavier than Air | Demonstration
What gas is heavier than air?
This "deep voice gas" will make it sound like you're possessed
Why is CO2 Heavier than Air
Heavier Than-Air Gas
Alvin Lucier - Heavier Than Air (1999)