Maven & Gilbreath Principle

Instead of mentally projecting your mentalism thoughts, type them here.
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Richard Kaufman
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Re: Maven & Gilbreath Principle

Postby Richard Kaufman » February 6th, 2017, 5:31 pm

My brain is an omelet. Scrambled.
Subscribe today to Genii Magazine

Joe Mckay
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Re: Maven & Gilbreath Principle

Postby Joe Mckay » May 18th, 2017, 5:55 pm

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

qkeli
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Re: Maven & Gilbreath Principle

Postby qkeli » May 19th, 2017, 10:34 am

Thanks for sharing thisclip
chacun de nous est magique, combien le realisent et combien partent trop vite...

Bill Mullins
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Re: Maven & Gilbreath Principle

Postby Bill Mullins » May 19th, 2017, 11:14 am

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.

Joe Mckay
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Re: Maven & Gilbreath Principle

Postby Joe Mckay » May 19th, 2017, 1:56 pm

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.

Joe Mckay
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Re: Maven & Gilbreath Principle

Postby Joe Mckay » May 19th, 2017, 6:22 pm

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.

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Brad Jeffers
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Re: Maven & Gilbreath Principle

Postby Brad Jeffers » May 20th, 2017, 2:11 am

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

Bill Mullins
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Re: Maven & Gilbreath Principle

Postby Bill Mullins » May 20th, 2017, 11:55 am

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.

Bill Mullins
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Re: Maven & Gilbreath Principle

Postby Bill Mullins » May 25th, 2017, 12:39 am

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)

Joe Mckay
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Re: Maven & Gilbreath Principle

Postby Joe Mckay » August 8th, 2018, 4:30 pm

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.

Denis Behr
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Re: Maven & Gilbreath Principle

Postby Denis Behr » August 9th, 2018, 1:44 am

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

federico luduena
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Re: Maven & Gilbreath Principle

Postby federico luduena » August 9th, 2018, 10:07 am

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?


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