Rocket Ascents... Can divers breach like a fish (split from Accident in Mich)

[Blackwood]

I guess you're not sure... your "guess" is incorrect

Both objects, ignoring negligible air resistance, will have velocities that change by exactly 32 ft/s every second.

exactly, eh?

 

[pants!]

exactly, eh?

Close enough

 

[pilot fish]

Close enough

Pants, you have a lot of good advice to give and you are an asset to the Board but don't know what your dive experience level is. Have you been diving long?

 

[Blackwood]

Did anyone happen to notice in the original thread our boy said the divers acent rate was 100ft in 10 sec. Since the acceleration of gravity is 32 ft/sec squared , 10ft per sec will hardly get your shoulders out of the water

Just to add more ridiculousness...




100 feet in 10 seconds yields an AVERAGE velocity of 10ft/s.

But we're concerned with the INSTANTANEOUS velocity at the surface. However unlikely, it's possible that 9 of those 10 seconds were used up transversing the first 1 foot of the ascent.

At that point - taking into consideration another recent thread - the diver may have "passed wind" in a manner so extreme that, while it decreased the buoyant force (by virtue of the decreased volume of the intestines), it added substantial thrust (quite like a rocket engine), which was a function of the "wind's" density and velocity. Maybe the diver was born with a deformity, a convergent-divergent (De Laval) anus, that drastically accelerated the "wind," and propelled the diver the remaining 99 feet throughout the 1 second duration of the constant-force "wind passing."

Like I said... unlikely, but possible.

 

[nitroxbabe]

Many, many thanks to all the wonderful people who have made this vastly entertaining thread possible. Best read I've had in a while.



-Carla

 

[DiveGolfSki]

aha, that explains why i'm not a Lagavulin drinker... peat slows you down...

Lagavulin?! Laphroaig!! .... phew ... I'd rather chew on charcoal.

 

[wedivebc]

, a convergent-divergent (De Laval) anus, that drastically accelerated the "wind," and propelled the diver the remaining 99 feet throughout the 1 second duration of the constant-force "wind passing."

.

Do you have any data on the effects of supersonic flow for that particular gas?

 

[CIBDiving]

they do slow down faster when travelling up.....

They do not! No more than they fall faster. What stops a rising object? Gravity. what makes it fall? Gravity. Are you saying that there are 2 different gravities??

 

[CIBDiving]

(boy , you guys are fast)
anyone remember the hammer / feather trick on the moon?

DB

I mentioned that last nite in a post on this subject.

 

[CIBDiving]

they do slow down faster when travelling up.....

Let me guess - Padi instructor??