OldChemE

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    146
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About OldChemE

  • Rank
    Baryon
  • Birthday 07/13/1946

Profile Information

  • Location
    High desert Nevada USA
  • Interests
    All things science, golf, tutoring grandchildren, developing cartridge designs for old rifles (experimenting with various types of gun powder, various bullet designs, various ballistic results, target shooting), working with my hands (wood/metal).
  • College Major/Degree
    BsChe, MSNuclear
  • Favorite Area of Science
    Physical Sciences
  • Biography
    38 years engineering, 10 years teaching (Math & Science) I'm not much of a debate person. I have confidence in myself (worts and all) so I tend to state my position on a topic and move on. Peer approval isn't high on my needs list.
  • Occupation
    retired

Recent Profile Visitors

2728 profile views
  1. OldChemE

    Portable Electric Freezer Bag

    RoadPro model RP12SB Not to advertise the product, but my wife bought one several years ago-- just the size to hold a 12 pack and plugs into the 12 volt car outlet-- keeps everything cold just fine.
  2. OldChemE

    Try this one !

    Seems like it should be easy if you just set up the permutations in a spreadsheet and plug in the formula-- maybe I'll play with it later.
  3. OldChemE

    Why we mark a New Year January 1?

    The bottom line is that there is not astronomical significance. But-- if you want to count years, you need to start somewhere. Jan 1 as the beginning of the new year is an artifact of human history that is currently accepted by a large segment of human population. The rest of the universe doesn't care one way or the other.
  4. OldChemE

    Newton, gravitation and second law

    ok-- I see it
  5. OldChemE

    Dropping out of highschool

    hey-- you asked for viewpoints and you got mine-- no harm. It really is your decision and nobody else's. The important thing is that you don't let it lead to a case of short-term gratification that leads to long-term regret. Only you can decide. Regardless of which way you go, good luck!
  6. OldChemE

    Dropping out of highschool

    There are many reasons to stay in High School-- that far outweigh the value of a GED. Admittedly, education in High school is sort of a 'shotgun' approach-- exposing you to many topics when some will have no importance in your future life. The catch to this is that the brain structure continues to evolve during the teen years, and many, many of us don't know what we will most want to do in our later life until we get there. Something which bores you today can likely end up being the foundation for something that, 5 years from now, will be important (this will be the point when you admit to yourself "Damn-- I should have finished High School"). Additionally, those who hire the really highly skilled people would like to see evidence that you are mentally strong enough to finish what you start-- even when it takes a long time (as many real-world problems do). Finishing High School is just one more proof that you can stick it out. If you cannot stick it out in High School, what makes you think you can stick it out in College? College degrees also require you to take courses outside your specialty-- and they can be equally boring. The GED is just a test of basic knowledge. It does not cover the wealth of added information and exposure to different fields of work that High School can provide you. That's why a High School diploma is valued higher than the GED.
  7. OldChemE

    Off-topic: "Pulling off a Nixon"

    I found the "Pulling off a Nixon" comment interesting-- in how our minds rewrite history based on our conceived notions. Nixon did not extend the war-- see below (from history). Nixon was sworn in as President in January 1969 for his first term-- He immediately started reducing US involvement in the war. I was in the military at the time and was very happy to know I was unlikely to be sent to Vietnam. During Nixon's term as Vice President he spent time on missions to China. He understood that the Vietnam war was a bad idea. He lost his office for good reasons-- the the war was not one of them. The withdrawal was almost complete by the time of the 1972 election. History Channel-- timeline of the Vietnam war: • 1969-1972: The Nixon administration gradually reduces the number of U.S. forces in South Vietnam, placing more burden on the ground forces of South Vietnam’s ARVN as part of a strategy known as Vietnamization. U.S. troops in Vietnam were reduced from a peak of 549,000 in 1969 to 69,000 in 1972.
  8. OldChemE

    Apple wine

    You have two different metals in an acid bath--look that up in a chemistry book
  9. OldChemE

    Voting Twice in the Midterm Elections

    It can be done-- but it seems sufficiently rare as to be insignificant. I say it can be done because in one recent election I simply showed the poll worker that I had my sample ballot in my hand and they handed me a voter card-- never checked my name or had me sign anything. I suspect this was a moment of carelessness, not a normal practice.
  10. OldChemE

    Q - NItorgen and Air expansion in tyres

    Air is roughly 80% Nitrogen already-- so even if you filled one tire entirely with air, the difference is only 100% vs 80%. Also, Nitrogen and Oxygen have similar properties. I haven't done the math but suspect the difference between 80% nitrogen and 100% nitrogen is trivial from a pressure standpoint. Maybe someone who has the numbers will weigh in on this (and correct me if I'm wrong).
  11. OldChemE

    Do you think this is true in science or not?

    Explaining something in simple terms takes more than knowledge-- it is an art. I've known some brilliant people who knew their subject so completely that the many qualifications and exceptions made it impossible for them to explain things in a simple fashion. Being able to simplify without leaving out key concepts is difficult.
  12. OldChemE

    Rainwater collection

    Essentially, what you are proposing is a huge boat that you would allow to fill with rain water. Once it fills beyond a certain point, (determined by buoyancy) it will sink-- unless it is supported from below. The feasibility of that support will depend on the depth and/or technology used to support it (pontoons or equivalent). I don't really know-- but I suspect the cost would far outweigh the cost of simpler solutions such as desalinization.
  13. OldChemE

    Will a Second Civil War Happen in The US?

    Regardless of the politics and debates, there is at least one practical reason why a civil war is unlikely in the US: territorial boundaries. For a civil war to be practical you need large areas under the control of one idealogy that have a boundary with those of another. Here we have cities that trend toward liberal views surrounded by urban area with more conservative views. That's not a very practical situation for civil war.
  14. Depends on how small you mean by miniature. The reactor in the research submarine NR-1 is about 6 ft in diameter and not a lot taller. But then you need the control rod drives, recirc pumps and, of course, some way to use the power (traditionally a heat exchanger and steam turbine).
  15. OldChemE

    Help Please!!

    Yes Ghideon-- I didn't think of that.