Page 5 of 5 FirstFirst 12345
Results 61 to 68 of 68

Thread: Discoveries and inventions

  1. #61
    Join Date
    Sep 2009
    Location
    Atlanta, GA
    Posts
    6,426
    Quote Originally Posted by Alan Lightstone View Post

    One of the operations I most enjoyed doing was AVRs..........

    ........ Kept my transesophageal echocardiography skills state-of-the art.......
    Yeah, yeah, yeah. But most important, how does this translate to half-blind dovetails?


    I'm astounded, Alan. Gonna have to start calling you Sir.
    When I started woodworking, I didn't know squat. I have progressed in 30 years - now I do know squat.

  2. #62
    Join Date
    Sep 2016
    Location
    Modesto, CA, USA
    Posts
    10,014
    NRI or maybe CAT scans were being developed/improved at LBL. The lead experimenter had taken hundreds of scans of animals and people. He decided maybe his lead tech should get an x-ray license. So the tech went to x-ray school part time and had to keep telling the class the text book was wrong. It was now possible to get certain images the book said could not be done.
    Bill D.
    PS: None of the early nuclear physics pioneers had a degree in nuclear physics. Including those with Nobel prizes in physics.
    Last edited by Bill Dufour; 11-19-2023 at 8:25 PM.

  3. #63
    Join Date
    Sep 2007
    Location
    Longview WA
    Posts
    27,486
    Blog Entries
    1
    But most important, how does this translate to half-blind dovetails?
    You mean the Aortic Valve Replacement wasn't joined to the Aorta with dovetails?

    None of the early nuclear physics pioneers had a degree in nuclear physics. Including those with Nobel prizes in physics.
    Probably because there wasn't any nuclear physicists to teach college or university level classes at the time.

    jtk
    "A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."
    - Sir Winston Churchill (1874-1965)

  4. #64
    Join Date
    Sep 2009
    Location
    Atlanta, GA
    Posts
    6,426
    Quote Originally Posted by Jim Koepke View Post
    You mean the Aortic Valve Replacement wasn't joined to the Aorta with dovetails?
    Couldn't get the blue tape to stick.
    When I started woodworking, I didn't know squat. I have progressed in 30 years - now I do know squat.

  5. #65
    Join Date
    Jun 2012
    Location
    New Westminster BC
    Posts
    3,019
    Quote Originally Posted by Jim Koepke View Post
    Probably because there wasn't any nuclear physicists to teach college or university level classes at the time.

    jtk
    Mmmm, brings back the old "Which came first, the chicken or the egg?"

  6. #66
    Join Date
    Sep 2016
    Location
    Modesto, CA, USA
    Posts
    10,014
    Nicolas Appert invented canning around 1810 and got prise money from Napoleon for preserving food. He used wine bottles so why is it called canning?
    BilLD

  7. #67
    Join Date
    Jun 2012
    Location
    New Westminster BC
    Posts
    3,019
    Maybe because whining was already taken?

  8. #68
    Join Date
    Nov 2021
    Location
    Mid West and North East USA
    Posts
    2,956
    Blog Entries
    2
    Quote Originally Posted by Rick Potter View Post
    Have you ever noticed how sometimes, seemingly unsolvable problems seem to lessen because of a timely invention or discovery? Like maybe polio vaccine, penicillin or the Aids Cocktail, and like the cotton gin, or steam power?

    In the discovery category, we have a new entrant. With the rise of the electric cars and such....it was just announced on an investment program that they have discovered a Lithium deposit larger than Australia's, in Canada, North of Quebec. Large investments are already starting.

    Seems to me this should lessen some of the concerns about getting it from Africa and China.
    Google put this article by Sammy Roth in my news feed. It is very interesting.

    https://www.latimes.com/environment/...-boiling-point
    Best Regards, Maurice

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •