Physics Rant: The Truth to Buoyancy in Diving

[b1gcountry]

Gravity != magnetism. In fact they behave VERY differently.

Oooh! Good catch. You are of course, correct.

Tom

 

[stas]

Gravity != magnetism. In fact they behave VERY differently. And that is a benefit for those of use who aren't entirely ferrous and would like to not float off into space. In fact they are two of the four fundamental forces, which you should know. Perhaps you mean "attractive", which gravity always is despite its long term effects on aging members of the population?

Perhaps he was referring to the inverse square law that exists in the classical descriptions of both electromagnetism and Newtonian gravity. Thats my guess, but I'm not sure since he was using technical terms in an imprecise way.

The phrasing and content of the OP (and the very fact that it exists) suggest that b1gcountry maybe an aerospace engineer, but probably not a very good one. The people I know who actually have a firm grasp on these kind of things, usually don't discuss semantics of this nature.

 

[Gombessa]

The phrasing and content of the OP suggest that b1gcountry maybe an aerospace engineer, but probably not a very good one.

"Oh man, this fuselage we designed is way too Heavy."

"Heavy? Why are you bringing up buoyancy?"

But seriously, even as a humanities major, I can see where imprecision in technical language can really confuse and cause even dangerous situations. I can't tell you how many times in my career I've had to stop one of my employees and say, "Arrrghh, it's 'Venti' not large!"

 

[The Kraken]

God !!! I LOVE these cerebral threads!!!

the K-ranium

 

[Steve_Dives]

Does anyone remember what the definition of "is" is???

 

[Blackwood]

Does anyone remember what the definition of "is" is???

If someone can get through law school and serve two terms as President of the US without knowing what "is" means, I don't have to know either.

 

[b1gcountry]

The phrasing and content of the OP (and the very fact that it exists) suggest that b1gcountry maybe an aerospace engineer, but probably not a very good one.

Name-calling on the Internet! Why, I never thought such things were possible!

Tom

 

[J.R.]

Name-calling on the Internet! Why, I never thought such things were possible!

Tom

Now, now... he didn't call you a name... he questioned your credentials... a WHOLE different thing...

 

[phunk]

My gawd, you may have destroyed curves in gradeschool, but that statement and link makes it quite clear that peers have nothing to fear from you nowadays.

You would be weightless at the earth's core, given the surrounding mass of the earth pulling you equally in all directions. Gravity affects you less as you descend (though you'd be hard-pressed to measure it).

Roak

I haven't read the whole thread so I don't know if you've been corrected yet, but I'll go ahead and do it anyway. I might not have if you hadn't insulted him.

The earth is not uniform density, it gets denser as you go deeper. If you were to dig to the core, gravity would increase for the first 1500 miles or so before it started to decrease. The maximum gravity is not the surface, but somewhere near the middle of the mantle, and the difference would be measurable if you could get there.

 

[b1gcountry]

I haven't read the whole thread so I don't know if you've been corrected yet, but I'll go ahead and do it anyway. I might not have if you hadn't insulted him.

My Hero!!!:blinking::blinking::blinking: