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OldChemE last won the day on October 14 2019

OldChemE had the most liked content!

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About OldChemE

  • Rank
  • Birthday 07/13/1946

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  • 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.
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  1. Except perhaps for cold fusion and homosexuality, these are not Science-- they are applications of science coupled with engineering, management, and in some cases marketing decisions. It is the applications of science (among other things), sometimes poorly conceived, that lead to disasters. Science not applied generally does not hurt anybody. As for homosexuality, It is merely one facet of the normal range of human behaviors. Not my thing but I don't think it needs a cure.
  2. What's missing from this discussion to some extent is the unique aspect of humans: A high level of intelligence coupled with the instinctive biological drives. This creates a situation where there are three driving forces that can conflict: (1) The instinctive drive to reproduce that pretty much all living things share, (2) The intellectual attraction some people develop that seems unique to intelligent species, and (3) The societal standards unique to individual cultures. This makes it difficult to generalize.
  3. Philosophically, I think it is a matter of national boundaries. That is, until mankind reached the point of identifying as part of a governmental unit, there was little basis for ownership, except, of course, ownership by force. Once a group of people become part of a governmental unit, the land claimed by that governmental unit (i.e. national boundaries) becomes subject to the laws of the region and that inevitably leads to rights regarding who can live where and also conditions regarding land ownership.
  4. We have both cats and dogs-- very different. There is a study of cat and dog behavior that suggests that cats seem aloof because they do not understand social behavior as well as dogs. Details here: https://www.bbc.com/future/article/20210318-why-cats-wont-punish-a-stranger-who-harms-you
  5. https://en.wikipedia.org/wiki/Fahrenheit The Fahrenheit scale (/ˈfɑːrənhaɪt/ or /ˈfɛrənhaɪt/) is a temperature scale based on one proposed in 1724 by the physicist Daniel Gabriel Fahrenheit (1686–1736).[1][2] It uses the degree Fahrenheit (symbol: °F) as the unit. Several accounts of how he originally defined his scale exist, but the original paper suggests the lower defining point, 0 °F, was established as the freezing temperature of a solution of brine made from a mixture of water, ice, and ammonium chloride (a salt).[3][4] The other limit established was his best estimate of the averag
  6. The original proposition is too poorly defined. Would heart stoppage be bodily death? How long must human consciousness survive to qualify? I had an elderly friend years ago who died at a square dance. His hear stopped while he was talking to friends. He felt his heart stop, got a puzzled look on his face, then then fainted. It certainly appeared that his consciousness survived death by a second or two. But, of course, it depends on how you define "bodily death."
  7. Having taught math successfully in Junior High and High school I though I would have a lot of great examples for you-- but on further reflection realized my best ones were not something that could be generalized. I had the greatest success when I could connect the math lesson to the students' experiences. For example, in my rural area the vast majority of the students have experience with guns and many also have reloaders in their families (people who make their own ammunition). When I first tried to teach statistics I got blank looks from many students, So that weekend I took my test equi
  8. Sorry I'm slow replying (away for awhile). Fundamentally, Switzerland went with the nuclear option because they had not significant sources of fossil fuels in the country-- they were importing what they needed. Nuclear gave them a degree of energy independence. That, however, was almost 20 years ago, and I have not kept track of how things may have changed since I left the country to return to the United States.
  9. Its not clear that your original premise is true. While menial jobs in many industries have become automated, many service-oriented jobs have been created. Service jobs also contribute to society and are part of the gross national product.
  10. In comparing Nuclear and renewables there was the historical question of scale (how to generate large amounts of energy in small spaces). At the time (60's-80's) the only good options for large generating capacity were hydro, fossil fuel and nuclear. Nuclear was a good choice because good opportunities for hydro were dwindling and, while it has its own sets of problems, nuclear replaced coal-- a benefit in several ways: reduced acid rain, reduced greenhouse gas emissions, and reduced coal tailings (random radioactivity and other localized pollution). I worked for several years as a technol
  11. I too am somewhat confused--about what you are really asking. maybe you need to explain your question further. But-- starting with what you have.... There are not two input values-- in any given equation the value of x can only be one number at any given time. So, there is really only 1 input. For any given equation there might be more than one value of x that satisfies the equation-- but only one value may be used each time you use the equation. In this instance, if x^2 = x/x = 1, then x = 1
  12. Physics - Principles and Application, Douglas C. Giancoli, ISBN0-13-060620-0. The interesting thing about this book is that it covers the physics behind virtually all branches of Engineering. It is a College level textbook that has the unique feature that is it Algebra based instead of being Calculus based. As a result the examples and problem sets are somewhat more closely aligned with the day-to-day of engineering problems as opposed to more research oriented aspects of physics.
  13. Some thoughts from a Teacher's perspective (mine) 1. High Stakes testing. Definitely should not be used as the primary means of determining what a student knows. Frequent assessments (what we call "formative" assessments) work best. In my experience most good teachers do it that way. However, some high stakes testing is important. If a person does not learn to handle some degree of pressure they are likely destined for job failure. 2. The written word. The ability to read is fundamental to almost all of life. Try using as computer if you cannot read well. It also rel
  14. So, modern science disowns its ancestry for commercial interests-- and ancient science/philosophy did not? I think you ought to do some research on ancient societies and ask yourself how the ancient scientists/philosophers had the time to do what they did without needing to work all the time to support themselves. Think about the role of patrons and rulers. The patrons and rulers saw an advantage, commercial and/or political, in supporting the activities. Lets go waaaay back in the pursuit of science and invention. Had the wheel no commercial value?
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