Determining weight
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From: Don1 on 29 Jul 2005 10:54 Sam Wormley wrote: > Don1 wrote: > > LeoK wrote: > > > >>>While you are at it, what _is_ the volume and weight of a slug of water > >>>at 39.2 degrees F, and > >>>atmospheric (sea level) pressure? > >>> > >>>Don > >> > >> > >>Don, I know the answer. > >> > >>You walk to the mountains. > >>Picking up a most selected stone. > >>Walk back to the scientific community. > >> > >>Making a manifesto of this stones weight is 1 kg. > > > > > > How can a stone weigh 1 kg you lunkhead? A kg isn't a weight. > > > > > >>And its volume is 1 liter. > > > > > > If you melt it. > > > > Snip< > > > > It's plain to see that you are one of the "new breed"; certainly not a > > decent physicist. > > > > Don > > > > Doesn't have to be liquid to have volume, Shead. Try pouring a liter of solid rock out of a bottle. Don
From: Sam Wormley on 29 Jul 2005 11:02 Don1 wrote: > Try pouring a liter of solid rock out of a bottle. > Why should I? I can displace a liter of water by submersion of the rock in water or any other liquid.
From: The Ghost In The Machine on 30 Jul 2005 00:00
In sci.physics, Don1 <dcshead(a)charter.net> wrote on 29 Jul 2005 07:54:51 -0700 <1122648891.381983.282840(a)g49g2000cwa.googlegroups.com>: > Sam Wormley wrote: >> Don1 wrote: >> > LeoK wrote: >> > >> >>>While you are at it, what _is_ the volume and weight of a slug of water >> >>>at 39.2 degrees F, and >> >>>atmospheric (sea level) pressure? >> >>> >> >>>Don >> >> >> >> >> >>Don, I know the answer. >> >> >> >>You walk to the mountains. >> >>Picking up a most selected stone. >> >>Walk back to the scientific community. >> >> >> >>Making a manifesto of this stones weight is 1 kg. >> > >> > >> > How can a stone weigh 1 kg you lunkhead? A kg isn't a weight. >> > >> > >> >>And its volume is 1 liter. >> > >> > >> > If you melt it. >> > >> > Snip< >> > >> > It's plain to see that you are one of the "new breed"; certainly not a >> > decent physicist. >> > >> > Don >> > >> >> Doesn't have to be liquid to have volume, Shead. > > Try pouring a liter of solid rock out of a bottle. > > Don > [1] Grind rock to sand or dust first. No problem pouring that. [2] Take rock and attack with blowtorch, or, more efficiently, place in crucible and watch it melt. Admittedly, the most effective container is something with a high melting point, so I can't be too clear here, and it depends on the rock. Once liquid, pour. Since most rocks are silicates one will probably end up with a variant of a glass; one has to exercise some care lest he attempt to pour too soon. (The effect is rather like molasses, as I understand it, with it becoming more motile as the temperature rises. Also, hot things tend to fry human flesh. Handle with care.) [3] If the rock's light enough one might contemplate pouring mercury into the bottle, along with the rock, and then allow the rock to float out as one pours out the mercury. Since mercury is very dense I don't see why this shouldn't work for most rocks, although one might quibble as to whether one's actually accomplished the objective or not. (Caution: mercury is poisonous, although less so than mercuric oxide -- cinnabar.) [4] The more or less standard method of estimating volume is very similar to [3], except that it uses water instead of mercury. A bottle of identical make full of water is used; the water is poured in until the first bottle is full. The amount of water left in the second bottle is therefore the volume of the rock. An alternative is to fill the first bottle full of water, then pour the water into the second bottle, and estimate the amount of air in the second bottle. Still another alternative is to remove the rock from the bottle, fill it, place a catchbasin under the bottle, carefully place the rock into the bottle letting the water spill into the catchbasin, then measure the water in the catchbasin. [5] If the rock is sufficiently parallelpiped or otherwise easy to measure (e.g., a standard brick) using a standard ruler, one can estimate its volume by multiplying width x height x depth. -- #191, ewill3(a)earthlink.net It's still legal to go .sigless. |