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Doctor Micro
09-22-2009, 06:53 PM
Was reading anonymous_mac_tech's post about Snow Leopard calculating disk space in base 10 and remembered an old bar napkin trick where one could "prove" that Christmas and Halloween were the same.


So, in the spirit of levity and for those that don't know the trick, here it is.

Christmas = Halloween
Christmas is December 25th, Halloween is October 31st (bright minds will have already figured this out)
December 25th is Dec 25, Halloween is Oct 31.
Dec is also short for Decimal (base 10), Oct is also short for Octal (base 8)
Decimal 25 = Octal 31


first place on the right is always the 1's column, next place to the left of that is the first base value (in this example, 10 and 8)
Decimal 25 = 5 1's + 2 10's. 5+20=25
Octal 31 = 1 1's + 3 8's. 1+24=25
Therefore Christmas and Haloween are equal.

Set 'em up, bartender!

nutrafrag
10-05-2009, 05:59 PM
That's it then we should dress as Santa and Mrs. Claus for Halloween!!!

JosephLeo
10-06-2009, 05:28 AM
Those who have superior minds would also know that Christmas and Halloween are Pagan holidays (As well as Easter too) but Christianity borrowed them in order to avoid persecution from the Pagans and as Christianity grew to its status that it is today it eventually wound up taking Christmas & Easter as their own and will soon be losing Christmas thanks to commercialism.

Oh, I am Christian by the way.

Anyway, that's a very cool trick! So, lets see what it equals on other number-prefixed months

34 - September
31 - October
27 - November
25 - December

It seems September is the only impossible one. November 27th, 2014 happens to be Thanksgiving by the way.

rusty.nells
10-06-2009, 05:45 AM
Well...it's somewhat related:

http://simonwillison.net/2009/Oct/4/trickortreat/

I grew up in a college town, and one Halloween our doorbell rang and we opened the door expecting to see trickortreater—but what was in front of our open door—was another door! Like, a full-on wooden door, that had a sign that said “Please knock.” So we did, and the door swung open to reveal a bunch of college dudes dressed as really old grandmothers, curlers in their hair, etc, who proceeded to coo over our “costumes” and tell us we were “such cute trick or treaters!” One even pinched my cheek. Then THEY gave US candy, closed their door, picked it up and walked to the next house.

Rider
10-06-2009, 03:08 PM
While we are on number tricks:

Using only one solid, straight line make l O l O l O = 950

I'll be back later to answer this one unless someone beats me to it.

Rider

Rider
10-06-2009, 03:12 PM
Anyway, that's a very cool trick! So, lets see what it equals on other number-prefixed months

34 - September
31 - October
27 - November
25 - December

It seems September is the only impossible one. November 27th, 2014 happens to be Thanksgiving by the way.

OK, educate me. I get October (Oct=octal) and December (Dec=decimal) but what number systems do September and November represent?

Rider

NickCat11
10-06-2009, 03:29 PM
While we are on number tricks:

Using only one solid, straight line make l O l O l O = 950

I'll be back later to answer this one unless someone beats me to it.

Rider

I give up :(


________

Rider
10-06-2009, 03:44 PM
I give up :(



Ok, this one TIME I'll give you a hint. I'll post the answer sometime this AM. If you can't wait PM me. Oh, the hint? It's in the caps.

Rider

JosephLeo
10-06-2009, 05:36 PM
OK, educate me. I get October (Oct=octal) and December (Dec=decimal) but what number systems do September and November represent?

Rider

1 = Uni/Mono
2 = Bi/Duo
3 = Tri
4 = Quad/Tetra
5 = Pent
6 = Hex/Sex
7 = Sept
8 = Oct
9 = Non/Nov
10 = Dec
100 = Cent
1,000 = Mill

I think 3rd grade math teaches you this.

Also, Base-2, Base-8, Base-10 and Base-16 (AKA Binary, Octal, Decimal and Hexidecimal) aren't the only number bases there are.

The highest practical base is Base 36 which uses 0~9 and then A~Z

Lowest is Unary (http://en.wikipedia.org/wiki/Unary_numeral_system) which is 0's only.

0 = 1
00 = 2
000 = 3
0000 = 4
etc..

Rider
10-06-2009, 06:44 PM
I think 3rd grade math teaches you this.

Also, Base-2, Base-8, Base-10 and Base-16 (AKA Binary, Octal, Decimal and Hexidecimal) aren't the only number bases there are.

The highest practical base is Base 36 which uses 0~9 and then A~Z


Why the need for the "3rd grade" comment? I did not learn that in the 3rd grade. If you did, good for you. Does that make you better than me? Does that make you smarter than me? I think not.

I do know my number systems and I should have seen the Sept connection however your Nov connection is a bit of a stretch.

BTW, the Base 60 or Sexagesimal system is widely used today. I'd call that practical.

Thank you for your answer but do me a favor, in the future keep your snyde remarks to yourself or just move on. Your insight isn't that important to me.


Rider

Rider
10-06-2009, 08:36 PM
While we are on number tricks:

Using only one solid, straight line make l O l O l O = 950

I'll be back later to answer this one unless someone beats me to it.

Rider

l O l O l O >> l O T O l O = 10 to 10 = 9:50

Everybody (me included) naturally tries to use binary to make it work but, as you can see, it has nothing to do with binary.

Rider

GeeksInKhakis
10-06-2009, 09:03 PM
While we are on number tricks:

Using only one solid, straight line make l O l O l O = 950

I'll be back later to answer this one unless someone beats me to it.

Rider
l O l O l O >> l O T O l O = 10 to 10 = 9:50

Everybody (me included) naturally tries to use binary to make it work but, as you can see, it has nothing to do with binary.

Rider
I had this one figured out in a couple of minutes even though I knew it would be a dumb one. The question says to make ' l O l O l O = 950', not make ' l O l O l O = 9:50'. If you want to use this little puzzle again, I would suggest changing it to ' l O l O l O = nine fifty', then adding the line to the middle line to make a 'T' works.

or

'using a solid line and TWO DOTS, etc'.

Rider
10-06-2009, 09:24 PM
I had this one figured out in a couple of minutes even though I knew it would be a dumb one. The question says to make ' l O l O l O = 950', not make ' l O l O l O = 9:50'. If you want to use this little puzzle again, I would suggest changing it to ' l O l O l O = nine fifty', then adding the line to the middle line to make a 'T' works.

or

'using a solid line and TWO DOTS, etc'.

Good god, it's just a goofy little puzzle but if I must explain: 950 is written using a 24 hour clock to indicate 9:50AM. It could be more correctly written as 0950 but it's not uncommon to drop the zero.

My hint pointed at TIME. If you want to be that technical about it, I probably shouldn't have included "PM" in my hint as that would be 2150. But hey, it's a goofy little puzzle. Don't try to over-analyze it.

It's amazing how an innocent "fun" thread can turn south so easily. Everybody feels the need to criticize. I don't get it. Oh well, so be it.

Rider

NickCat11
10-06-2009, 09:32 PM
It's a tough crowd today, that's for sure...

JosephLeo
10-06-2009, 10:52 PM
Why the need for the "3rd grade" comment? I did not learn that in the 3rd grade. If you did, good for you. Does that make you better than me? Does that make you smarter than me? I think not.

I do know my number systems and I should have seen the Sept connection however your Nov connection is a bit of a stretch.

BTW, the Base 60 or Sexagesimal system is widely used today. I'd call that practical.

Thank you for your answer but do me a favor, in the future keep your snyde remarks to yourself or just move on. Your insight isn't that important to me.


Rider

Sorry, I didn't mean for it to come off that way. It's hard to show expression in text. I meant that in a much, MUCH more different manner. No it doesn't make me better than you, no one in my opinion is better than anyone. To me a bum off the street is worth as much as and equal in every way to Carlos Slim, Bill Gates or Warren Buffet and vice-versa. It just so happens those guys are billions of times richer than (s)he is.

Anyway, yeah Base-60 is widely used as well. But I guess you had to point that out because I offended you :S. But in my defense, after doing some research, Base-64 is also used...so, yeah. I'm sorry, just trying to throw some humor into this subject, I seem to have been making topics go haywire recently.

GeeksInKhakis
10-06-2009, 11:53 PM
Good god, it's just a goofy little puzzle but if I must explain: 950 is written using a 24 hour clock to indicate 9:50AM. It could be more correctly written as 0950 but it's not uncommon to drop the zero.

My hint pointed at TIME. If you want to be that technical about it, I probably shouldn't have included "PM" in my hint as that would be 2150. But hey, it's a goofy little puzzle. Don't try to over-analyze it.

It's amazing how an innocent "fun" thread can turn south so easily. Everybody feels the need to criticize. I don't get it. Oh well, so be it.

Rider
right...it IS just a goofy little puzzle. So...why take my comments seriously? No, you don't need to explain (24 hour time when it's written still includes the ':'), I just thought it was a rather misleading puzzle. Whatever, if I offended anyone...gosh I'm sorry. :eek: