1. Attachments are working again! Check out this thread for more details and to report any other bugs.

two pi, or not two pi?

Discussion in 'Fred's House of Pancakes' started by hyo silver, Jun 30, 2011.

  1. daniel

    daniel Cat Lovers Against the Bomb

    Joined:
    Feb 25, 2004
    14,487
    1,518
    0
    Location:
    Spokane, WA
    Vehicle:
    2004 Prius
    Didn't the Julian calendar start out with ten months, but then a couple of emperors wanted months named after them?

    As for pi, it is un-American to be against pie. That's fine for the OP who is Canadian. But, though I really hate to agree with amm0bob, as an American, I like both pi and pie. I'd even like a square pie, providing it's apple. And yes, you can make a square pie out of round apples if you have an environmentally correct square Pyrex baking dish instead of un-environmental disposable aluminum pie tins.
     
    2 people like this.
  2. xs650

    xs650 Senior Member

    Joined:
    Jul 2, 2010
    4,539
    1,433
    9
    Location:
    Northern California
    Vehicle:
    2010 Prius
    Model:
    II
    Is that just with the old American made Pyrex or does that include the newer exploding made in China Pyrex?:D
     
  3. hyo silver

    hyo silver Awaaaaay

    Joined:
    Mar 2, 2005
    15,232
    1,563
    0
    Location:
    off into the sunset
    Vehicle:
    2004 Prius
    Model:
    N/A
    Indeed it did. Not only did Julius and Augustus want months named after them, they wanted the best ones. And didn't care that the following months - named after 7, 8, 9, and 10 - would become displaced misnomers.

    Pyrex are round, too. :)
     
  4. Politburo

    Politburo Active Member

    Joined:
    Feb 15, 2009
    971
    208
    0
    Vehicle:
    2009 Prius
    This is a myth.. Pyrex sold in the US is made in the US. No one has quite been able to determine with certainty when they switched to soda glass.

    snopes.com: Exploding Pyrex
     
  5. daniel

    daniel Cat Lovers Against the Bomb

    Joined:
    Feb 25, 2004
    14,487
    1,518
    0
    Location:
    Spokane, WA
    Vehicle:
    2004 Prius
    Politburo beat me to it! Exploding Pyrex is an urban legend.
     
  6. xs650

    xs650 Senior Member

    Joined:
    Jul 2, 2010
    4,539
    1,433
    9
    Location:
    Northern California
    Vehicle:
    2010 Prius
    Model:
    II
    I have been there when it happened. Explosion is an exaggerated term, but it does go with some noise, just like a tempered glass window. Whether or not it explodes more frequently now than then is questionable.
     
  7. fuzzy1

    fuzzy1 Senior Member

    Joined:
    Feb 26, 2009
    17,317
    10,167
    90
    Location:
    Western Washington
    Vehicle:
    Other Hybrid
    Model:
    N/A
    :confused: Nobody told us that we were supposed to dispose of our aluminum pie tins.
     
  8. daniel

    daniel Cat Lovers Against the Bomb

    Joined:
    Feb 25, 2004
    14,487
    1,518
    0
    Location:
    Spokane, WA
    Vehicle:
    2004 Prius
    Burn the bottom badly enough and you'll be tossing it in the trash. :(
     
  9. mbartley

    mbartley Junior Member

    Joined:
    Jun 9, 2010
    47
    5
    0
    Location:
    LA County, CA
    Vehicle:
    2010 Prius
    Model:
    III
    Because it doesn't.
     
    1 person likes this.
  10. hyo silver

    hyo silver Awaaaaay

    Joined:
    Mar 2, 2005
    15,232
    1,563
    0
    Location:
    off into the sunset
    Vehicle:
    2004 Prius
    Model:
    N/A
    That depends on the definition of 'month'. As your link explains, the lunar period varies from a low of 27.2 days to a high of 29.5 days, according to the chosen point of reference. Using the standard working definition of 28 days for a lunar cycle, and an Earth year of 365 days (which is also open to interpretation, and refinement over time) yields 13 months with a remainder of one day. 13x28 = 364
     
    1 person likes this.
  11. daniel

    daniel Cat Lovers Against the Bomb

    Joined:
    Feb 25, 2004
    14,487
    1,518
    0
    Location:
    Spokane, WA
    Vehicle:
    2004 Prius
    I think the remainder is actually a bit under one and a quarter. My definition of a month is a calendar month on the Gregorian calendar. There are therefore different month lengths, and 12 of them per year, adjusted in February as needed to keep the summer solstice from getting too far away from its assigned date.
     
  12. hyo silver

    hyo silver Awaaaaay

    Joined:
    Mar 2, 2005
    15,232
    1,563
    0
    Location:
    off into the sunset
    Vehicle:
    2004 Prius
    Model:
    N/A
    Yes, I understand the Gregorian calendar is the current de facto international standard. There's one on my fridge, too. But it's not just numbers on pages - it contains infinite teaching moments of human history and knowledge, and questions much deeper than 'What day is it?' Calendars also represent certain perspectives, which is where my earlier question about the number of months came from.

    It's not the Summer Solstice that changes, it's our record-keeping. Aside from keeping everyone on the same page, a calendar is a reflection of planetary motions and celestial events. As our understanding of celestial mechanics has deepened, and our measurements more precise, we have made adjustments in the calendar to keep it synchronised. It's Universe that's the big clock - we're just trying to keep time.
     
  13. KK6PD

    KK6PD _ . _ . / _ _ . _

    Joined:
    Mar 24, 2008
    4,003
    944
    118
    Location:
    Los Angeles Foothills
    Vehicle:
    Other Hybrid
    Model:
    N/A
    Well at least we have that time thing going great. I keeps everything from happening all at once!
     
  14. 2k1Toaster

    2k1Toaster Brand New Prius Batteries

    Joined:
    Feb 14, 2010
    6,035
    3,855
    0
    Location:
    Rocky Mountains
    Vehicle:
    2006 Prius
    Model:
    Three
    Do we though? Scientists can not agree on what time is or if it even exists. Is time all through perception, or is there an anti-time for this time which would mean a known beginning and end, nobody knows...

    What they do know is that perception of time increases with respect to age. A senior's time travels much faster than a toddlers. Something like 125% faster once you are in young adult hood, and 225% by the time you retire.
     
  15. daniel

    daniel Cat Lovers Against the Bomb

    Joined:
    Feb 25, 2004
    14,487
    1,518
    0
    Location:
    Spokane, WA
    Vehicle:
    2004 Prius
    Of course not! It's pictures of cats also. At least, mine is.

    Actually, due to the precession of the equinoxes, the solstices do change with respect to the background stars. But because civilization until very recently was predominantly concerned with agriculture, people decided they wanted a calendar that always had the summer solstice fall on the same date.

    That time exists, as one dimension of space-time, is not in dispute. Exactly what time is, is a philosophical question that science does not concern itself with.
     
  16. hyo silver

    hyo silver Awaaaaay

    Joined:
    Mar 2, 2005
    15,232
    1,563
    0
    Location:
    off into the sunset
    Vehicle:
    2004 Prius
    Model:
    N/A
    The perception changes because our perspective changes. When we're 10 years old, a year is 10% of our life. When we're 50 years old, a year is only 2% of our life. Einstein was right - time is relative. The older we get, the faster it goes. :cool:

    Fortunately, some moments last forever. Or unfortunately, depending what you remember. :p
     
  17. 2k1Toaster

    2k1Toaster Brand New Prius Batteries

    Joined:
    Feb 14, 2010
    6,035
    3,855
    0
    Location:
    Rocky Mountains
    Vehicle:
    2006 Prius
    Model:
    Three
    No that is in dispute. Quantum science has been toying with the idea of multiple dimension time. If we accept multiple spacial dimensions, why not multiple time dimensions?

    This is rather "new" science though, but the point is that the existence of and idea of time is being disputed today.
     
  18. daniel

    daniel Cat Lovers Against the Bomb

    Joined:
    Feb 25, 2004
    14,487
    1,518
    0
    Location:
    Spokane, WA
    Vehicle:
    2004 Prius
    I believe that's more fringe speculation than science. Sure, on the edge of science people come up with some wacky ideas. But until there's a wee bit of evidence, it remains speculation. I've heard those notions about multiple time dimensions, but so far there is nothing behind them.

    As for multiple space dimensions beyond the usual three, those ideas come out of "brane" theories that so far have yielded nothing useful and are liable to be dead ends.
     
  19. hyo silver

    hyo silver Awaaaaay

    Joined:
    Mar 2, 2005
    15,232
    1,563
    0
    Location:
    off into the sunset
    Vehicle:
    2004 Prius
    Model:
    N/A
    Dead ends and branes? Sounds like zombie science. :rolleyes: