[underwater exhalation]
[A Demonstration of Boyle's Gas Law]
[...And why you should not hold your breath when ascending the surface.]
[Depth: 128 feet] [Voices from a group of people all speaking at the same time.]
Prepare to leave bottom. Next stop is 40 feet.
[Garbled sound from various voices.]
Travelling in 10 seconds.
Lydia...Lydia and Zach can figure it out...[clears throat] There you go.
Okay...travelling.[Sound of gas escaping the chamber.]
128? [background laughter]
[Sound of gas escaping the chamber.]
55! 55! I can't say...I'll take 58. I'm going to say 50.
[Sound of gas escaping the chamber.]
Wow! Yeah, pretty good! Where are we at?
50. Oh my god!
[Depth: 40 feet] That includes doses of 100% oxygen...[Loud popping sound]...There it is!