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Externet

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Everything posted by Externet

  1. Thanks, MigL. The intention is to be able to fill and empty cylinders with CGGA870 from a CGA850 terminated hose. Cannot rely on someone doing a 4000+psi safe welding. Thinking now on disemboweling/machining threads to the pertinent section of a CGA870 regulator (green) and buying a spare CGA850 valve to join them and achieve your suggestion. Will explore the safety of that; would be a clumsy bulky contraption.
  2. The avatar has nothing to do with it. 😱 Trying to make a coupling disc from CGA870 to CGA850 valves to fill high pressure cylinders. The double sided impression resulting "coin" to be given to a machinist to be replicated in metal. Tried other way with blueprints, and they give up or break my tooling, or claim not to have the proper equipment.
  3. Thanks, gentlemen. The word "wax" does not play well with its characteristics. Will check if the "sealing wax" product available at a nearby "Hobby Lobby" store is hard enough when dry/set and not too sticky when applied as to allow release. ---> https://www.hobbylobby.com/Scrapbook-Paper-Crafts/Card-Making/Wax-Seals/Glue-Gun-Sealing-Wax/p/WS7812
  4. Hi. Those seals in medieval and later documents, is it 'wax'? Seen them in liquor bottles also. They are hard as rock. Anyone knows how to prepare a small amount for obtaining a relief pattern to yield a negative ? Should be not sticky and dry hard. Or any other plasticky modern material. -Image borrowed from the web.-
  5. Sorry, my mistake. It is not "Retainer" it is "Retained" when looking at Profile :
  6. Losing heat by radiation since millions of years ago, can the mantle be just that, cooled slag on top of a molten core ?
  7. Hi. Somewhere shows 'Primate' and somewhere shows 'Molecule' in the user profile. ? What is the current 'ladder' of ranks ?
  8. Thank you, Sensei. Cells alone would give me the perception am after. In panels, there is cost of glass + frame + assembly labor + transport - I prefer to set aside for the moment. Yes, I have on my roof an array of panels; 240V - 4.5KW. Paid ~$450/KW price to public; which should be a manufacturing cost well under half for panels. And about half for cells alone. As a guess, cells should be around $100/KW and a fraction of that, the electrical energy used to manufacture them, but prefer a less guessy figure.
  9. Good day. Read often that manufacturing solar cells (not panels !) is expensive in terms of electrical energy used. Anyone knows figures ? To make cells that produce 1 KW, how many KWh are used at the factory ? (embodied energy)
  10. Thanks. The same type of question for 'determinate' and 'indeterminate' Which I believe pertains to fruiting times. Is there anywhere in the taxonomy clasification list where to learn if a -say tomato- varietal is determinate or not ?
  11. Thanks. Let me check if I understood well. There is no way to learn by the taxonomy of a certain plant, if its seed will produce an exact genetic copy with same hardiness or color or flavor. That name I used in this post "true seed" characteristic am looking for, does not exist in the taxonomy/classification. If I want to grow oranges; I cannot tell from its taxonomy if will have to be grafted or will produce same exact fruit from its seed. I must learn from an experienced expert farmer. Interesting. None of the 8 names at top tell it ?
  12. Some trees/plants are called 'true seed something' grow; as peaches, a seed from the supermarket bought peach will produce a 'true peach'. Some others as avocado, apple, do not yield a fruit exact as its planted seed parent. What is the botany 'category' or 'family' or 'genus' or its 'clasification' name for one or the other ? As to know if one fruit produces exact same genetic fruit; or needs to be grafted ? Which name here explains/defines it ? Example is for pear: Scientific classification Kingdom: Plantae Clade: Tracheophytes Clade: Angiosperms Clade: Eudicots Clade: Rosids Order: Rosales Family: Rosaceae Subfamily: Amygdaloideae Tribe: Maleae Subtribe: Malinae Genus: Pyrus
  13. Let A.I. decide if should be considered an invention. 😐 And see what happens.
  14. Sadly, it is reality. My father used to say "That is a fireman idea" when it was not bright at all... and I have seen it proven several times.
  15. Were the slaves from Africa centuries ago bought from their tribes, voluntary emigrated or abducted ? All the above, none, or how did it work ? Conquerors just disembarked as planned business and captured whoever found fit and force taken to Americas/elsewhere ? Were violent conflicts capturing them ?
  16. So far, it has been a disaster financially and productivity and durability. (not in English ! --> https://www.elespanol.com/omicrono/20190725/primera-carretera-paneles-solares-mundo-desastre/416459279_0.html [ Orne, Tourouvre-au-Perche, France ]
  17. We used ozone and ion generators to diminish smoke smell in expensive electronic equipment victim of nearby fires. But is a several days/weeks treatment, not hours. There should be other recommendations from experts in the field. Better done when no people present.
  18. Testing double use for the road. The intention is to not use farming fields. Do not know what to comment. 😐
  19. Good day. Please move to another section as deserved. Conquerors, migrants, as in the 'discovery' and settlement of Australia, America, Oceania, Africa as by europeans half a milennia ago was reported as finding savages, uncivilized tribes, with poor justice practices, perhaps ignorants surrounded by gods, myths... Is there any recorded opinion as what did the conquered tribes and civilizations thought of their conquerors and their guns, riding horses, methods of building dwellings, transportation using wheels, tools, clothing, writing, inventions... ? What did those tribes think of their conquerors ? Those currently isolated amazonian and other tribes, what do they think of the civilized ?
  20. Justice is the constant, permanent imparting to every one what they deserve. My english could be better. If you get the idea, improve the wording/phrase.
  21. Done it a few times very successfully with less amount of water than in the video onto older hot non-stick frying pans; but do not know if the name is deglazing, degreasing, other or none. The explanation heard is the 'explosive' conversion from liquid to steam mechanically dislodging residues by steam expansion
  22. Dad had a toy on his '59 car dashboard, it was engine-vacuum operated. The nearest found today is called push puppet buy it had some bladder in the base instead of a spring; suction by a tiny hose to engine intake collapsed it, likely made in Germany. Are those still being made that you know of ? Just nostalgic... Similar :
  23. Thank you, StringJunky So the change is very recent. Will find out if spoken names are also affected by the order.
  24. Thanks. No need for temperatures higher than the source. Just capability to gather sun radiation into a hole on a roof by optically redirecting at also lower sun elevations. Seems moving parts/mirrors for tracking are mandatory.
  25. Hello. Has there been any ruling, trend, disposition to swap the order of given name and family name recently ? Like since 1-2 years ago ? Is that for spoken or written, official documents ?
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