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mini sf6 voice in ESTONIA

mini sf6 voice in ESTONIA

Heavy Gas - Sulfur Hexafluoride | Experiments | Steve.When SF 6 is inhaled, the pitch of a person’s voice drops dramatically. The speed of sound in SF 6 is way slower than it is in air. Sound travels through air at about 1100 ft/sec (335 m/s) but through SF 6 it’s only about 394 ft/sec (120 m/s). On the other hand, a helium voice is heard at about 2953 ft/sec (900 m/s). It’s much faster!

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