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Hi Perhaps half an hour after a meal, when whatever is going on in the stomach, the digestion process is well advanced at a certain point of progress. Eating again at that moment mixes partially digested food with food in need of the entire process. What happens in that situation? ; how does the stomach recognizes what to 'continue' digesting and what to 'start' digesting ? Will the process start again and the already semi-processed food gets another 'treatment' ? Miguel

Kind of verbal terminology, thankGod not used in typing!, the stupidity of inserting a dozen 'you know' per minute in a conversation. It cracks me up when used responding to a question.:D:D What do some have in their brains ?

Hi. Some supermarket gymnastics... That $16 per pound fancy 'deli' cheese, or the plain $3 per pound simple Monterey jack ? The $9.99 NY steak or the rump something meat at $ 1.25 per pound... The $0.99 catfish or the fancy $ 8.99 yellowtail... The plain 99cent bread against the same size $3.50 weird-named loaf ? Are we selecting nutritional value or pleasures? What is the nutritional difference among similar foods, is it worth the absurd $ ? Miguel

Yes, rising from depth will aid expansion and buoyancy. Happy with that. The bursting part would not be a problem. Bigger balloon.

Thanks. Nothing to do with anything, I have no interest in refining nor hydrogen as itself. I want to produce gases of any kind from seawater electrolysis to create buoyancy that will bring a device in the bottom of the sea to surface after a period of time. Powered by a seawater voltaic cell, probably graphite and magnesium. The whatever gases Cl, H, O will have no use other than the volume they grow up to in a bladder. Or, if any easily obtainable material produces gas in contact with seawater.

Thanks for responding. I know too little about this... The intention is to electrolytically produce any gases from seawater using voltage generated by electrodes immersed in it as a voltaic cell; perhaps carbon and magnesium. Or, if two dissimilar (connected?) elements immersed in seawater can themselves generate bubbling.

Are the "electromotive series" and the "electronegativity" the same tables with different reference points ? Are both Pauling's ? What is carbon electromotive series value ?

Hi all. A voltaic cell with a carbon rod and aluminium rod electrodes generates some potential in a container with seawater. If that voltage is applied to other two platinum electrodes in the same electrolyte in the same container, will they generate some gases ?

Catalán, español, english, some italiano, some portugues.

I would forbid reproduction for those who cannot provide decent education, decent nutrition and decent healthy lives to their children. Forbidding politicians from getting wealthy could help too.

Which would you say are the most interesting threads you remember in these forums along the years ? Miguel

¿¿?? I do not get that at the SFN heading. Usually a blank space.

Hi. Reviving this thread in case some other ideas come up, now with this approach: Imagine a piece of pvc pipe, vertical, sealed at the bottom. Pour some chemical compound in it. Put some thin layer, membrane, or dividing separator on top of the compound. Put an activator on top of the separator membrane. Secure a deflated balloon on top of the pipe. Tailored to ~24 hours, the activator should dissolve the separator and the two chemicals mix, producing gas that will inflate the balloon a few litres bringing an item to surface from the bottom of the sea. Help with simple chemicals, please ? Miguel

Perhaps it is not 'greatness', but being a very nice laxative when allergy to Windows develops, by whatever be the reasons to each user. On my side, what bothers me the most is the intrusion perception Windows gives me. Linux offers me peace of mind, the feel of being out of the crowd. Ubuntu support on forums is great with the exceptions when finding a helper who seems to be more into answering quickly instead of providing detailed guidance. The learning curve had and has hurdles at least for me, Linux found initially to be very confusing after years with mister Gates. Now I just bypass what I do not understand and use what I know. Learning by 'osmosis' helps with time. Miguel

What about a metal foil at the bottom of a tub/pond as one electrode, submerged in ONE liquid with floating whiskers/wires ? (instead of the two nonmiscible PN junction liquids)

Benefit ? Just a shot in the air, as may be possible to make such thing at home with materials easier to make than cristalline silicon and thin film technologies. The transfer part, if an electrode is at the bottom of the tub, under a couple of millimeters of fluid A, and electrode hairs immersed in fluid B layer above. The collectors cannot be a deterrent ! Put the thinking hats on !

Yes, is the clear gel soil for growing plants, when - I believe- hydrated with hydroponic formulas. The poisonous part am not sure. Perhaps when degrades over time. Found this, but hebrew to me : http://www.cellmigration.org/resource/imaging/ppt-pdf/polyacrylamide_gel_fabrication_flowchart.pdf Miguel

Come on, enough skilled, experienced and smart people in this forum ! Come up with a fluid in a tub -or two layers of nonmiscible fluids, or whatever your knowledge yields- that when sun-bathed generate electricity at its electrodes. It's about time... Miguel

Thanks, Herman

Hi. Any way to make such thing at home ? Is it a complex task ?

How would a diesel engine behave if fueled by unprocessed rapeseed oil ?

When was the last time you knew of a shipment of medicines, food, aid of any kind sent to any country in distress by natural, or political, or starvation, or whatever reason... originated from any of the superrich OPEC countries?

Do viruses, bacteria, and the microbes that cause illness to humans get their share of problems too with parasits or sickening agents other than antibodies ? I would love to see viruses with thermometers stuck in their mouths, keeping rest...

Hi YT. Go to the wreck yard and canibalize the headlight of a BMW. Cannot remember since what year they have a central lens like the one you are after. I have a couple but mailing may not be fast/convenient as you can get them there. Let me know if yes. They are plano-convex "D" as you want ; 60mm + 7mm for holding rim = 67mm ⌀ total, real good glass; 22.1mm thick; whatever diopters that yields. Miguel Edited-added : other lens sources are the old large copy machines, projection televisions, slide projectors at recycling places.

From what I know, early humans were gatherers and their diet was mostly fruit. At what point fire got into the mixture and some foods were needed to be boiled/cooked/burned? What happens if not cooked? Take peanuts or potatoes as example; how nutritive/edible are they raw against cooked in comparison to other nuts/roots eaten raw ? Is it true yams are very poisonous raw?