Adam Savage goes high and low on Mythbusters
このボートは空中に浮かびます! |探査 DIY SCI
ガスの密度
Ship floating in air!
空気ガスより軽くて重い
Heavier Than-Air Gas
Co2 is heavier than air
Propane, heavier than air
Simple Science Experiment | Co2 is heavier than Air | Demonstration
Speak Like Darth Vader with Sulfur Hexafluoride
This "deep voice gas" will make it sound like you're possessed
How to know gases that are heavier or lighter than Air #gasweight
六フッ化硫黄 - ディープボイスガス
Is natural gas heavier than air?
Heavier than Air Fuel Vapor Behavior
Alvin Lucier - Heavier Than Air (1999)
Gasoline vapors are heavier than air - demonstration
Carbon Dioxide CO2 is Heavier than Air Demonstration
Heavier Than Air: Resisting the Military State. Introduction by Sam Dolbear
一酸化炭素は空気より重いですか?