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Re: Maven & Gilbreath Principle

Posted: February 6th, 2017, 5:31 pm
by Richard Kaufman
My brain is an omelet. Scrambled.

Re: Maven & Gilbreath Principle

Posted: May 18th, 2017, 5:55 pm
by Joe Mckay
Here is a presentation by Max Maven on The Gilbreath Principle from the latest Gathering 4 Gardner conference.

https://www.youtube.com/watch?v=ht_2ai4N9BY

Re: Maven & Gilbreath Principle

Posted: May 19th, 2017, 10:34 am
by qkeli
Thanks for sharing thisclip

Re: Maven & Gilbreath Principle

Posted: May 19th, 2017, 11:14 am
by Bill Mullins
After you watch the Max Maven piece, click on "Gathering for Gardner" below the video to go to their page of youtube videos. There are many talks from not only the 12th conference in 2016, but also the 11th in 2014 (including one of some doofus talking about Theodore Deland).

Ones of possible interest to this forum include Jason England on cheating devices, Adam Rubin on his most recent book, Alex Bellos on elliptical pool tables, Gabe Fajuri on things he sells at auction, Dana Richards on the things Martin Gardner wrote as a juvenile, and things he wrote as an adult for juveniles, Charles Sonenshein on a Milbourne Christopher rope trick, Lennart Green on magic squares, and Gary Foshee's harmonic pendulum.

Re: Maven & Gilbreath Principle

Posted: May 19th, 2017, 1:56 pm
by Joe Mckay
It was great seeing your talk on Theo Deland, Bill!

https://www.youtube.com/watch?v=wzK9dCO_tr4

I really hope the book comes out some time this year.

Re: Maven & Gilbreath Principle

Posted: May 19th, 2017, 6:22 pm
by Joe Mckay
I have spoken a lot about The Gilbreath Principle in this thread.

Well - here is an important update. Tomas Blomberg has extended this principle with an idea called Interlocked Gilbreath. You can find it in his book called Blomberg Laboratories. It is a great book and his work on this principle is pretty special. He has pushed it further than anyone else I have seen.

Re: Maven & Gilbreath Principle

Posted: May 20th, 2017, 2:11 am
by Brad Jeffers
Bill, Enjoyed your talk on Deland.
You look different than what I had imagined.
For some reason, when reading your posts, I have always envisioned you as looking like Ed Asner ...
Image

Re: Maven & Gilbreath Principle

Posted: May 20th, 2017, 11:55 am
by Bill Mullins
I'm not quite sure how to take that . . .
(but I do hate spunk)


When I was younger, I used to get accused of looking like Ernie from "My Three Sons". Now, occasionally (and I don't get this and can't figure out why) people will tell me I look like Stephen King. In the past 5 years, I've had 3 or 4 random strangers walk up to me and tell me that.

Re: Maven & Gilbreath Principle

Posted: May 25th, 2017, 12:39 am
by Bill Mullins
Some more videos have just been added. They include some short ones featuring impromptu tricks from Gardner's Encyclopedia by Mark Mitton, Dan Garrett, and Martin Gardner's son James.

(and speaking of Ed Asner, he has come up on the forum before)

Re: Maven & Gilbreath Principle

Posted: August 8th, 2018, 4:30 pm
by Joe Mckay
I guess we all know that if a deck of cards is riffle shuffled into another deck of cards (that is in reverse order) - and the combined deck of 104 cards is cut exactly in half - you are left with two decks of 52 different playing cards.

It was one of the first (and still most interesting) uses for The Gilbreath Principle. In the example above - both decks have the same coloured backs.

Well - it is worth checking out 'Out Of This Neighborhood' by Norman Gilbreath. It is on page 740 of the May, 1989 issue of GENII magazine (Dai Vernon is on the cover).

In this trick - Norman extends the idea so that you can do the trick with two decks of different coloured backs. So after they are riffle shuffled together - you show you have two decks of 52 different cards. Each deck having a different coloured back. It is a fascinating problem although it is a bit of a pain to set up. And probably only of interest to magicians.

Still - it is a fun little trick to play with for those interested in this principle.

Re: Maven & Gilbreath Principle

Posted: August 9th, 2018, 1:44 am
by Denis Behr
If you like that, here are a few related ideas (not necessarily using Gilbreath). Most of them a bit undeveloped:

https://www.conjuringarchive.com/list/b ... ight=35318
https://www.conjuringarchive.com/list/b ... ight=68118
https://www.conjuringarchive.com/list/b ... ight=38888

Re: Maven & Gilbreath Principle

Posted: August 9th, 2018, 10:07 am
by federico luduena
Thank you for all the detailed information, Joe. To contribute to 1), there is "Blindsight", by Nick Trost (The Card Magic of Nick Trost), and the one-deck version by Bob Neale, "Probability Pack", in Life and Death and Other Card Tricks. Also, it seems 4) and 9) use the same wonderful idea, no?