Talk:Archimedes' principle: Difference between revisions

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The "Explanation" section says: "the difference between the pressure up against the bottom of the cube and the pressure down against the top of the cube is the same at any depth". I think this is strictly true only if the fluid is incompressible. Perhaps the words "incompressible fluid" should be added to the section whereever appropriate. Jwpat7 (talk) 04:27, 4 September 2012 (UTC)[reply]

Article Rudimentary / Lacks References

This (scientific) article does not cite references, makes frequent errors (often corrected in parentheticals), uses approximations without clarification (the force of gravity varies on earth and Archimedes' principle applies in space) and is generally poor quality.

Examples:

"Thus, in short, buoyancy = weight of displaced fluid"
"the weight of 1 kilogram (technically, as a kilogram is unit of mass and not of force, the buoyant force is the weight of 1 kg, which is approximately 9.8 Newtons.)"
"10 kilograms (98 newtons)"
"Objects weigh more in air than they do in water."

As it has the tone of an editor who wrote it from first-hand experience, rather than referenced sources, this article needs a (clean?) revisit.

-Geoff (talk) 07:12, 25 September 2012 (UTC)[reply]

@@ Line 3: / Line 3: @@
 The "Explanation" section says: "the difference between the pressure up against the bottom of the cube and the pressure down against the top of the cube is the same at any depth".  I think this is strictly true only if the fluid is incompressible.  Perhaps the words "incompressible fluid" should be added to the section whereever appropriate. [[User:Jwpat7|Jwpat7]] ([[User talk:Jwpat7|talk]]) 04:27, 4 September 2012 (UTC)
+== Article Rudimentary / Lacks References ==
+This (scientific) article does not cite references, makes frequent errors (often corrected in parentheticals), uses approximations without clarification (the force of gravity varies on earth and Archimedes' principle applies in space) and is generally poor quality.
+===Examples:===
+* "Thus, in short, buoyancy = weight of displaced fluid"
+* "the weight of 1 kilogram (technically, as a kilogram is unit of mass and not of force, the buoyant force is the weight of 1 kg, which is approximately 9.8 Newtons.)"
+* "10 kilograms (98 newtons)"
+* "Objects weigh more in air than they do in water."
+As it has the tone of an editor who wrote it from first-hand experience, rather than referenced sources, this article needs a (clean?) revisit.
+-[[User:Hayesgm|Geoff]] ([[User talk:Hayesgm|talk]]) 07:12, 25 September 2012 (UTC)