Free 173 Best Homemade Tools eBook:  
Become a founding member: 500+ tool plans, full site access, and more.

User Tag List

Page 44 of 46 FirstFirst ... 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 LastLast
Results 431 to 440 of 451

Thread: Metric vs. other measurement systems - chart

  1. #431
    Supporting Member Toolmaker51's Avatar
    Join Date
    Feb 2016
    Location
    Midwest USA
    Posts
    3,634
    Thanks
    5,588
    Thanked 2,330 Times in 1,443 Posts

    Toolmaker51's Tools
    The description of "A lemon on legs" paints a visual alright, not disturbing, just humorous.

    There is another, differently phrased but equal in humor. It describes an overweight [such as one of our politicians] retiree.
    He's beach or poolside in Brazilian styled too-brief excuse for swimwear as an egg wearing a rubberband.
    That IS disturbing!

    173 Best Homemade Tools eBook
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

  2. The Following User Says Thank You to Toolmaker51 For This Useful Post:

    old kodger (Jul 15, 2021)

  3. #432
    Supporting Member
    Join Date
    Oct 2016
    Posts
    874
    Thanks
    22
    Thanked 242 Times in 172 Posts

    old kodger's Tools
    My mother, being 4'10" (in any direction) was severally described as "a lemon on legs" so it's little surprise that I'm off down the same road. Mind you, she lived 'til 95 years old so that can't be bad.

  4. #433
    Supporting Member Philip Davies's Avatar
    Join Date
    Dec 2015
    Location
    Reading, Berks, UK
    Posts
    520
    Thanks
    643
    Thanked 709 Times in 224 Posts

    Philip Davies's Tools
    For once, I am looking forward to a TV programme later this week, to do with the “internationally accepted prototype” of a kilogram. This has shed, I read, a fraction of its weight. This is described as the “equivalent of an eyelash”. Really? That seems quite a lot, and since it is locked in a vault near Paris, it’s not likely to be due to wear and tear. Hopefully the programme will explain why, although if it’s quantum physics, that will in itself be enough. The metrologists are apparently “racing” to invent a new standard kilogram. What are the likely candidates? I suggest 703 coffee beans.

  5. #434
    Supporting Member mklotz's Avatar
    Join Date
    Aug 2015
    Location
    LA, CA, USA
    Posts
    2,720
    Thanks
    284
    Thanked 5,196 Times in 1,727 Posts

    mklotz's Tools
    Quote Originally Posted by Philip Davies View Post
    For once, I am looking forward to a TV programme later this week, to do with the “internationally accepted prototype” of a kilogram. This has shed, I read, a fraction of its weight. This is described as the “equivalent of an eyelash”. Really? That seems quite a lot, and since it is locked in a vault near Paris, it’s not likely to be due to wear and tear. Hopefully the programme will explain why, although if it’s quantum physics, that will in itself be enough. The metrologists are apparently “racing” to invent a new standard kilogram. What are the likely candidates? I suggest 703 coffee beans.
    According to this article...

    https://www.nbcnews.com/mach/science...ns-ncna1007731

    it's lost only 50 micrograms, the weight of a few fingerprints; an eyelash would weigh much more.

    Science has advanced enough that we can now define the fundamental quantities (meter, kilogram, second) of the metric system in terms of physical constants not subject to the vagaries of nature as the prototypes of the past were. The meter is already defined in terms of the speed of light in a vacuum, a universal constant. The second is defined in terms of the radiation emitted by cesium. The kilogram was the last fundamental to be defined in terms of a physical artefact.

    Now the kilogram has been defined in terms of Planck's constant, h = 6.62607015E-34 kgm/sec so the physical standard in France is no longer needed; it can rust and abrade away as much as it wishes.

    Defining in terms of universal physical constants not only removes the dependence on objects subject to change, it allows users anywhere to generate the standard rather than having to travel to a prototype, measure, and then attempt to carry that measurement back unchanged.
    ---
    Regards, Marv


    Home Shop Freeware
    http://www.myvirtualnetwork.com/mklotz

  6. The Following User Says Thank You to mklotz For This Useful Post:

    Philip Davies (Sep 13, 2021)

  7. #435
    Supporting Member bruce.desertrat's Avatar
    Join Date
    Nov 2017
    Posts
    607
    Thanks
    368
    Thanked 524 Times in 282 Posts

    bruce.desertrat's Tools
    Quote Originally Posted by mklotz View Post
    Defining in terms of universal physical constants not only removes the dependence on objects subject to change, it allows users anywhere to generate the standard rather than having to travel to a prototype, measure, and then attempt to carry that measurement back unchanged.
    And it keeps pirates from stealing them, helping to cement America on the Imperial Standards swamp. https://www.npr.org/sections/thetwo-...-metric-system.

    Speaking of which I found this amazing graphic today, showing the relationships of liquid measure in the (US) Imperial system. See they're perfectly simple! (just don't do it wrong; I think you'll summon a demon instead of finding how many teaspoons in ⅓ cup :-)

    Metric vs. other measurement systems - chart-tumblr_b7a3f2d1e87889917f37c9a50275817b_013bafc6_640.jpg

  8. The Following 3 Users Say Thank You to bruce.desertrat For This Useful Post:

    jimfols (Sep 12, 2021), nova_robotics (Sep 12, 2021), Toolmaker51 (Sep 12, 2021)

  9. #436
    Supporting Member mklotz's Avatar
    Join Date
    Aug 2015
    Location
    LA, CA, USA
    Posts
    2,720
    Thanks
    284
    Thanked 5,196 Times in 1,727 Posts

    mklotz's Tools
    Nice, but it doesn't show those classic, party-on, wine bottles...

    Jeroboam
    Salmanazar
    Balthazar
    Nebuchadnezzar

    The inferial system, in addition to its innate idiocy, has the habit of giving units names that carry exactly no information about the unit's numerical value or relation to the base unit. Naming units for obscure biblical kings is the zenith of that nasty practice.
    ---
    Regards, Marv


    Home Shop Freeware
    http://www.myvirtualnetwork.com/mklotz

  10. The Following User Says Thank You to mklotz For This Useful Post:

    Moldyjim (Sep 13, 2021)

  11. #437
    Supporting Member
    Join Date
    Oct 2016
    Posts
    874
    Thanks
    22
    Thanked 242 Times in 172 Posts

    old kodger's Tools
    Quote Originally Posted by mklotz View Post
    According to this article...

    https://www.nbcnews.com/mach/science...ns-ncna1007731

    it's lost only 50 micrograms, the weight of a few fingerprints; an eyelash would weigh much more.

    Science has advanced enough that we can now define the fundamental quantities (meter, kilogram, second) of the metric system in terms of physical constants not subject to the vagaries of nature as the prototypes of the past were. The meter is already defined in terms of the speed of light in a vacuum, a universal constant. The second is defined in terms of the radiation emitted by cesium. The kilogram was the last fundamental to be defined in terms of a physical artefact.

    Now the kilogram has been defined in terms of Planck's constant, h = 6.62607015E-34 kgm/sec so the physical standard in France is no longer needed; it can rust and abrade away as much as it wishes.

    Defining in terms of universal physical constants not only removes the dependence on objects subject to change, it allows users anywhere to generate the standard rather than having to travel to a prototype, measure, and then attempt to carry that measurement back unchanged.
    There is a fundamental flaw in the statement "time is a constant" it's been established that it is not, therefore ALL calculations based, or using, the speed of light are by definition variable.

  12. #438
    Supporting Member bruce.desertrat's Avatar
    Join Date
    Nov 2017
    Posts
    607
    Thanks
    368
    Thanked 524 Times in 282 Posts

    bruce.desertrat's Tools
    Well many times monks were the brewers, vinters and distillers, so maybe the names weren't so obscure to them; or originated as some sort of in-joke. some cursory googling does not turn up and definitive information on the origins...quite possibly the originators didn't remember why they called them that the next morning :-)

  13. The Following User Says Thank You to bruce.desertrat For This Useful Post:

    old kodger (Sep 12, 2021)

  14. #439
    Supporting Member mklotz's Avatar
    Join Date
    Aug 2015
    Location
    LA, CA, USA
    Posts
    2,720
    Thanks
    284
    Thanked 5,196 Times in 1,727 Posts

    mklotz's Tools
    Quote Originally Posted by bruce.desertrat View Post
    Well many times monks were the brewers, vinters and distillers, so maybe the names weren't so obscure to them; or originated as some sort of in-joke. some cursory googling does not turn up and definitive information on the origins...quite possibly the originators didn't remember why they called them that the next morning :-)
    Maybe they used the kings' names as a sort of code so they could talk openly in front of the bishop...

    Yeah, last night was a real Nebuchadnezzar of a night!

    Nah, the bishop was probably the biggest souse of them all.
    ---
    Regards, Marv


    Home Shop Freeware
    http://www.myvirtualnetwork.com/mklotz

  15. The Following User Says Thank You to mklotz For This Useful Post:

    FEM2008 (Sep 12, 2021)

  16. #440
    Supporting Member Toolmaker51's Avatar
    Join Date
    Feb 2016
    Location
    Midwest USA
    Posts
    3,634
    Thanks
    5,588
    Thanked 2,330 Times in 1,443 Posts

    Toolmaker51's Tools
    Quote Originally Posted by bruce.desertrat View Post
    And it keeps pirates from stealing them, helping to cement America on the Imperial Standards swamp. https://www.npr.org/sections/thetwo-...-metric-system.

    Speaking of which I found this amazing graphic today, showing the relationships of liquid measure in the (US) Imperial system. See they're perfectly simple! (just don't do it wrong; I think you'll summon a demon instead of finding how many teaspoons in ⅓ cup :-)

    Click image for larger version. 

Name:	tumblr_b7a3f2d1e87889917f37c9a50275817b_013bafc6_640.jpg 
Views:	26 
Size:	81.1 KB 
ID:	40437
    Decent graphic depiction, but siding with Marv on this one, summoning inferial IS demonic...
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

  17. The Following User Says Thank You to Toolmaker51 For This Useful Post:

    bruce.desertrat (Sep 13, 2021)

Thread Information

Users Browsing this Thread

There are currently 2 users browsing this thread. (0 members and 2 guests)

Bookmarks

Posting Permissions

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