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Heard many times comments on volcanic solis being very rich yielding good cultivable areas. Heard other times, and seen myself volcanic soils being totally deprived of vegetation and life. How do both match ?

Difficult ? If the links provided you talk about are the ones in post #10, I did not know they existed because took me one hour to put together response #12. Thanks zule and Cap'n Refsmmat for your responses; instead of "a stone quarry"

It is rare to see an altar without the cloth: "...A plain linen covering (Greek: Katasarkion, Slavonic: Strachítsa) is bound to the Holy Table with cords; this cover is never removed after the altar is consecrated, and is considered to be the "baptismal garment" of the altar. The linen covering symbolizes the winding sheet in which the body of Christ was wrapped when he was laid in the tomb. Since the altar is never seen uncovered thereafter"... [From http://www.answers.com/topic/altar] Long video : http://homepage.mac.com/stlawrence/iMovieTheater20.html What is kept under the ara stone in the altar is not the subject either, but shows there is one : "...The relics of at least two saints, at least one of which had to be a martyr, were inserted in a cavity in the altar which was then sealed, a practice that was meant to recall the use of martyrs' tombs as places of Eucharistic celebration during the persecutions of the Church in the first through third centuries. Also in the cavity were sealed documents relating to the altar's..." [From http://en.wikipedia.org/wiki/Altar_stone] http://www.antiochian.org/node/22564 http://www.orthodoxytz.com/photos_consecration.asp I believe this one has it on the side wall : http://www.geograph.org.uk/photo/710650 I believe the Pope is placing it here: http://www.dominicanfriars.org/2008/07/20/popes-wyd-message-to-young-religious/ Another picture of the stone that 'does not exist' : http://www.mansaf.org/tarmim/re-openeing.htm This does not exist either : http://travel.webshots.com/photo/1216932793059399543btUycI Another optical illusion : http://www.vroma.org/images/raia_images/altar4.jpg More optical tricks ? : http://pagesperso-orange.fr/civitas.dei/easter09_09.jpg Sorry, : http://fssp.com/images/chapel2010/altarstone.jpg

Why is it so often responders do not read the original post properly ? My English is not perfect, but far from bad. No! Moontanman. My assertion says every altar contains a 'different' stone. I did not say church. You twisted it there. Go back and read. If the altar is made of wood, it should also contain such Ara stone in it. That is the subject. Tom : This is not about building material for a church. It is about a stone inserted in the altar table, whatever the material of the table is, whatever the country be. zule : The altar does not have to be built with any particular stone. You have that part right, and it is not the subject of the thread. It is about the insertion of a stone in the altar table, whatever the material of the table is. Very strange you never saw an altar without the cloth on it. Seems the link pictures do not mean anything as to "backup the assertion" My curiosity is the source of the stones, not to argue if they are in altars or not.

This was somehow, veeeery hard to find on the net, but I know I did not dreamed it. At least I have it partially right... The eighth picture shows the altar cavity where the ara stone is to be inserted. http://deespana.blogspot.com/2007/01/el-mayor-altar-visigodo.html If you look carefully, is inserted here too. : http://www.stpeterscathedral.org/altar%20a.JPG Last paragraph here mentions something : http://catholic-hythe.org/Floor_plan/altar_tabernacle.htm http://www.fcpeace.com/images/euc_piedra.jpg ...and I have seen them...

All Christian altars have a piece of 'different' stone in it. From what I learn decades ago, it is a stone taken/sourced only from a certain mountain in Israel? Rome? and all churches use one when building the altar. Where is the exact source of such Ara (in spanish) stone ?

Have not seen a demonstration of more what we call intelligence than that of the capuchins. Spiders 'intelligence' impress me a lot anyway, with their ultratiny brain.

Not using base 10 for measuring angles, time, coordinates = majestic goof we carry trough centuries...

TylenolPM inactive ingredients: Benzyl alcohol, black iron oxide, butylparaben, carboxymethyl cellulose sodium, crospovidone, D&C red #28, edetate calcium disodium, FD&C blue #1, FD&C red #40, gelatin, hypromellose, magnesium stearate, methylparaben, microcrystalline cellulose, polyethylene glycol, polysorbate 80, powdered cellulose, pregelatinized starch, propylene glycol, propylparaben, red iron oxide, sodium citrate, sodium lauryl sulfate, sodium propionate, sodium starch glycolate, titanium dioxide, yellow iron oxide Why not sustitute all those with wheat flour, to say something ? Do we need to put all that in our bodies ?

What bothers me in this forum ? Nothing ! ---> Don't touch it ! Great knowledge, great attitudes, great help; and when it does not feel like that, is because responses may be well beyond the expected level. If you ask the reverse, as... ¿ What would you like to add ? I would like members and moderators to invite someone they admire to join SFN, even if just makes sporadic presence. Miguel

Yep. Not much confirmed proven data and tests performed to suggest how much voltage, duty cycle and pulse cadence works better with the least uncomfort to the diver in seawater. Existing gadgets may be too influenced by marketing to believe their performance. Just try bursts of DC, AC, at varied voltages with plain sorrounding fish to learn their reaction. A shark should at least react similarly. http://www.newscientist.com/article/mg13217923.800-technology-protecting-bathers-with-a-short-shark-shock.html You are mostly on your own to evaluate whatever you build. Check for DC to DC converters, inverter circuits on the net, impermeabilize them and try. A disposable camera flash can be a starting point, can make up to 350V. Come back with findings ! The kitchen piezoelectric lighter has to produce a shock. A magnet on each fin tip, don't know. I know a ticking watch will attract them. Electricity, fresh water and fish mix is surprising: http://www.youtube.com/watch?v=FIGBHZFeNgo&feature=related

No, I would not target an attacking shark eyes. I would long before that moment by caution sense. --->http://www.sharksavers.org/en/education/shark-myths/424-myth-sharks-have-poor-vision.html Lucky you that have not experienced scary dangerous situations. I have nothing to lose by carrying in a dive whatever else can work as defense. Has to be better than only my 357 bangstick.

Sharks do not depend on their eyesight to a great extent ? Where did you get that from ? ..."I think you might just piss him off with the laser"... How can you tell such ? Nobody knows ! When they bite who cares if their opaque membrane is on. It's too late for laser or bangstick ! This is just for 5mW red wavelenght; not 200mW class IIIb green without infrared blocking : http://www.scientificamerican.com/article.cfm?id=can-a-pocket-laser-damage

..."This is totally untested at best and totally bogus at worst, I doubt a shark would be impressed by a laser underwater unless it was shown directly in it's eyes up close, even then i am skeptical to say the least."... Of course that has to be aimed at the eye, one by one. What were you expecting ? A poorly written site from someone making a living with a wimpy 5 milliwatt one: --->http://www.airbuddy.com/id47.htm The only sure thing is I do not want such laser aimed at my eyes, underwater or above water. Better ask an eye doctor...

A 99¢ piezoelectric kitchen lighter wired to a spark plug will do it, with no complications.

Hi. Diver too. With some very scary incidents on records; am taking a couple of actions for the next season. 1.- This animal: --->http://www.dealextreme.com/details.dx/sku.1997 It is NOT A TOY ! Waterproofed, will permanently blind any menacing shark in less than a second, from a safe distance. Must be used with care. 2.- To try if protects the rear end, attaching magnets to the fin tips : --->http://www.wired.com/gadgets/miscellaneous/news/2007/05/sharkmagnets If it does not work, well. I tried. I do think that motion of a magnetic field in a very conductive media as seawater, has to generate currents. - I will not discuss the humane or not side. There is gadgets in the market that attach to the diver and emit voltage pulses, supposed to work. Very pricey for peanuts technology. Always wondered if a piezoelectric lighter, properly waterproofed with the terminals at the tip of a pole can give a shock to its nearby zone, (includes the diver) when triggered.

I do not care for a decent sized station nor making electricity. I just want to know if could heat one home in winters, and I will not charge anyone for 10 years storage of the spent fuel. Then they can have it back.

OK, I will settle for 300Kg; 10 years. Got any spent fuel behind your spider webs ? "After one year, typical spent nuclear fuel generates about 10 kW of decay heat per tonne, decreasing to about 1 kW/t after ten years.[2] Hence effective passive cooling for spent nuclear fuel is required for a number of years." ( from ---> http://en.wikipedia.org/wiki/Decay_heat ) http://en.wikipedia.org/wiki/Radioisotope_heater_unit

Thanks, swansont, skeptic. How does the canisters to store spent fuel prevent the personnel/environment handling them from becoming ill/contaminated/suffer health problems ? I assume their well designed and very tested casks fully shield/contain the harmful radiation but not its heat. Whatever isotopes or chemicals mixture is inside, is kept very confined If so, the heat could be used. And when recently removed from service, spent fuel rods rest in water a while to "prevent radiation from harming nuclear plant personnel" A water jacket added in the "fireplace-replacing hot box" could work too, could it? From reading on the net, they emit heat for years. There has to be a way, setting aside current security matters, to implement its use. Or centralized sites pumping hot water to dwellings ? http://phobos.vscht.cz/konference_matlab/MATLAB06/prispevky/pultarova/pultarova.pdf http://www.ocrwm.doe.gov/factsheets/doeymp0338.shtml WANTED : "Safe hot box containing spent nuclear material" ( A couple of kilowatts heat for 20 years will do it, fireplace size preferred )

Interesting subject, but am ignorant in this matters, please shine some light. For sure there is a bunch of brains dealing with the disposal of spent nuclear material, because of health and political and other reasons, but swansont triggers my curiousity. ..." would need a certain amount of it to have it be hot enough to boil water and"... What does less than a certain amount of spent material does ? Just warms up to say 60C instead of being capable of boiling water ? If such spent material is encapsulated in glass, concrete, shielded in a whatever metal box that fully blocks all harmful radiation; what does it do? Gets warm by itself for a buuuunch of years? I would not mind having such safe hot box instead of my fireplace, or place it in a water filled vessel to make hot water. Just move it out to the backyard in summer. Ok, spank me now...

Bibs on, and enjoy :

Thanks for the replies. Yes, a fragile payload would not survive. Unless the thrusters are driven gently enough to be the gases the ones that would do the initial smoother propulsion with much less fuel payload. The friction could be nearly eliminated, with a loose fit in a vertical bore inside a mountain, or a duct on its slope.

A vertical rocket launch seems to me that wastes most of its initial fuel/thrust as the exhaust is deflected sideways to atmosphere. If such launch could be done from inside a 'barrel' as a bullet in a rifle, its own exhaust gases push would be way, way more efficient. Would it? Do rockets launched from silos need much less fuel to overcome inertia ? Are their combustion gases vented or compressed within the silo until the rocket clears the surface opening ?

Immersing a rusty iron piece in baking soda solution and applying 12 volts electrolytically removes the iron oxide. Many years ago, an expert told me that immersing a rusty piece in caustic soda, would prevent from rusting ever again

Hi. Surprised by the efforts to make a car run from a wind turbine. I know it can run, in any wind direction, but how much effort can the university of Stuttgard be putting on such limited contraption ? As an experiment, it's fine. Unsure if will show from this link; I had difficulty locating the program, and may correspond to another link next days : http://www.dw-world.de/dw/0,,3062,00.html Aired 17.02.2010 on "Tomorrow Today" by Deutsche Welle Hit play video on "Get smarter while you sleep" ; it contains the subject.