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Think of it as half the power or helium in reverse.
If you could make your cups float with a healium baloon how big would it be? Well it would be half as effective in floating in a vat of this stuff instead of with baloons tied to it.
Also I am sure a cup filled with air is denser than the sulpher hexafloride, so it would sink anyway, you would have to crush the cup up and make it into a bunch of little boat shapes that have very thin walls for it to work, complicated.
Helium and Sulphur Hexaflouride are awesome!
not as cool as aerogel IMO
It is non-toxic, and breathing it would make your voice go deeper. It would only kill you of you didn`t breath oxygen within a suitable time, same as when you breath helium, co2, or nos.
Afterall you can breath in helium and not die right off.
Lighter then Air Gaz- Voice gets higher.Heavier then air Gaz - Voice gets deeper.
I want a jar of that Hexafluorid. It will go nicely next to my Areogel.