math magic

A friend gave me the bound version of The Bat magazine that has issues 1-50. The opening trick in the first issue of the magazine is an interesting math trick. Basically if you use the number 142857 and multiply it by 1 through 6 you will get the same number, just “cut” like a deck of cards. The sequence is the same, it’s just the starting point isn’t the one (unless 1 is picked).

The trick in The Bat is OK, it uses two stacks of number cards. One is in that order and you false shuffle them, then lay them out as a “random” number. It’s multiplied by a number 1-6 from the other packet and that’s the audience’s number . The first packet is mixed and dealt out and and it matches the audiences number.

It’s an OK, and mathy feeling trick. I think it can be improved a little bit to hide the method. Here’s my idea, you basically do the same trick, however you give them the option to multiply OR divide the two numbers. That’s asked at the beginning. If they choose to divide, you work backwards. you have the number 1-6 picked first, then you use the number 142857 and cut the packet so that it’s in the right order for that number. Divide them and you end up with 142857.

I think the free choices of multiply and a dice roll add layers to the trick that would make it harder to backtrack. Also the dice has less cards in the trick, and could give it more of a “game” feeling. I guess a coin with an X and ÷ could add another prop to the routine. Also with only six outcomes, a multiple out type prediction could work. If you had six dollar bills in your wallet that had the serials numbers each matching an outcome, that could be a fund ending.

I think it’s an interesting math problem, but the challenge is to make it not feel like math.

-Louie

L or D: Life or Death by Peter Kamp and Magic Dream – Review

The other day I got an email for the trick L or D: Life or Death by Peter Kamp and Magic Dream from Stevens Magic Emporium. This is a mentalism effect where you have five tokens have a “heads” and a “tails” side. In this case they are themed with “life” and “death”. They are turned over by the spectator, so that you don’t know what’s token has which side up and then one is covered. You tell them which side is face up on the token that is covered.

The description of the trick, immediately told me this was a themed version of Sam Dalal’s MentaColor (this trick is probably not original to him). Here’s Sam’s much older version of the trick:

@louiefoxx Why would anyone do this Magic Trick? #magictrick #mentalism #mindreading #headsortails #guess #5050 #louiefoxx #vintage #samdalal #vintagemagic ♬ original sound – Louie Foxx

As I say in the video, this is a method that’s looking for the trick. It’s a lot of process and props for what is essentially a 50/50 guess. Sure you can repeat it to prove you get it right every time, but it’s still a lot of process each time.

Honestly, I think that the “life or death” presentation angle of the trick is an improvement over Sam’s colors, and a bit easier on the performer when you get to the end because you don’t have to remember the pairs of colors. However in the end it doesn’t fix the fundamental problem with the trick, which is that it’s a lot of props to do a “heads or tails” revelation.

-Louie

Father’s Day Magic Trick!

I was playing with an interactive “touch the screen” style trick for father’s day. This is the type of trick where someone starts by touching a object, then spells/counts several times eventually ending up on an object that you know.

The cool thing that I noticed is that if you spell the three words HAPPY FATHERS DAY the math works out for each word for to make it easy.

To do this you’ll start with five objects. These could simply be little pieces of paper that say things about dads, or whatever. You will line these up. For simplicity, I’m going to just use the numbers 1-5.

1 – 2 – 3 – 4 – 5

Touch the one on the left. You are going to move one space per letter. You can move left or right, but only to the one next to it, you can jump spaces or from end to end. Spell HAPPY, moving one space per letter and keep touching that one.

You’re not on the one or the five, so I’ll eliminate those.

2 – 3 – 4

Now you’ll spell FATHERS moving one space for each letter.

You’re not on the four, so I’ll take that one away.

2 – 3

Now spell DAY, moving one space per letter.

You’re on the 2!

That’s a very simple interactive math trick you can do for father’s day!

-Louie

Pi Day Magic Trick

One of the things I do to try to keep creative is come up with tricks for holidays. While Pi Day 3.14 isn’t a traditional holiday, it’s a theme that I can create a trick for. Here’s a counting trick using Pi Day as the theme.

“We’ll the first 5 digits of Pi which are 3.1415, without the decimal, so we’re using: 31415”

“Let’s start on the first digit, so touch the three. Now you’ll spell “Pi Day” jumping one number per letter. You can move forward, or backwards for each jump, you just can’t jump from end to end. Go ahead and start jumping now.”

“Pi is a number that never ends and I’m going to guess you’re not on either end, so eliminate the 3 and 5. That leaves us with the 1, 4, and 1.”

“Using the number you’re touching, jump that many times, forward or backwards.”

“I’m guessing you’re not on the first number one. That leaves us with a 4 and 1.”

“Using the number you’re not touching, jump that may times.”

“You’re on the number one!”

There you to a simple trick that could be used as a social media video or as newsletter content!

-Louie

Human Calendar Stunt…

The other day I was at the Pike Place Market and walked by a street performing pitch and saw this:

Unfortunately Mr. Unity wasn’t there, so I can only form my opinion based on his milk crate stand.

It looks like he does the day of the week birthday calculation. This is something that I’ve personally never understood why is impressive. It’s clearly a math calculation, not a memorization feat (at least when I’ve seen it). And the end result is something that I didn’t know or have any connection to.

I think if it was reversed and you told the magician the day of the week you were born on and the year, and they told you your birthday, it’d be much cooler. However, I’m going to imagine that would ultimately give the magician a 20-25% success rate, unless there some some fishing for where in the month the birthday is.

-Louie

Body Magic by John Fisher

For years I’ve been interested in the book Body Magic by John Fisher. I like the idea of a book of tricks that just use your body, however the older edition when they popped up was priced usually at $100+ and I wasn’t that curious about the contents.

It was republished a while ago and I finally picked up a copy:

I’ve only flipped through the book and it’s not quite what I expected. There’s more than physical magic, there’s some things like mnemonics in there and some math stuff. I’m not saying that those are bad things, but expected it to be all physical, not mental stuff.

I’ll probably have a different opinion once I actually read it!

-Louie

St. Patrick’s Day Magic Trick

Here’s a rough idea I had for a St. Patrick’s Day themed magic trick that’s a “touch the screen” style trick. You’ll need a four leaf clover with the leaves numbered 1 to 4.

The rules are people will jump on leave for each number, the can only go clockwise or counter clockwise, back and forth NOT diagonally. They also cannot pass the stem.

The touch any leaf, then count the number they’re touching, jumping one leaf per number.

They’re not on the 1, so remove that one.

Now they spell IRISH jumping one leaf for each letter.

You can now eliminate the 2 and 4 and reveal they are on the number 3!

NOTE: It might be good add a phase after they spell IRISH, where you eliminate the 4. Then have them spell LUCK, then eliminate the 2 and reveal they are on the 4. That might make it seem more random?

That math seems to checkout, and feel free to use this for whatever…

-Louie

Halloween Trick!

I’ve always said that creating tricks based on holidays is one of the easiest ways to generate content. Here’s an interactive Halloween magic trick you can do at home, just print out the pdf below and follow the instructions

Halloween Magic Trick Download

Enjoy!
-Louie

Projector Bills…

I was scrolling through Instagram last night and came upon a picture of overhead projector bills.

I was thinking of what could be done with these. I think you could create a makeshift projector using the flashlight on your phone. If you combined that with a glass table I think you could do some fun stuff on the ceiling.

One thought was you could do a “touch the screen” type effect with the bills on the ceiling for a group of people.

If you have a $1, $5, $10, $20 and $50 dollar bills and line them up in numerical order, you can do some spell count procedures to eventually force a bill. The basic routine would be:

Touch a bill and spell the value of it (ie ONE), jumping one bill per letter and keep touching that bill
Remove the end bills ($1 and $50)
Spell the value of one of the eliminated bills (ONE or FIFTY)
They are now on the $10

You could then reveal the prediction of having a ten dollar bill in your phone case.

-Louie

Bigfoot Sightings…

This summer I’m doing a few virtual shows that will be cryptid themed. I’m starting the brainstorming process and I remember seeing Bigfoot Finger Feet. These are little bigfoot feet that go on your fingers. They would work great with a virtual show because you can zoom in on them and make them play big on the screen.

The idea that I came up with that I liked was to have five cards (actually blank drink coasters) with the names of different bigfoot sighting locations. I could show each card and talk about and/or show video of the sighting. I would use the feet to walk over the cards as I talked about the sightings. Then they would pick one. I’d pour water over all of the cards “to make fresh mud for the tracks” and when I do that, bigfoot footprints would appear on the selected location’s card!

From a method standpoint there’s a lot of ways I could force the location. I could use: Quinta, Hotrod Force, Math Number Forces, etc. Then for the reveal, simply using a hydrophobic spray and an stencil would do the trick.

I think using the video element of the sightings adds a lot of production elements to the trick that wouldn’t be in a typical in person library show. The nice thing is the investment for this trick will be about $20 and with showing the short video clips, I can probably get 4-5 mins out of it.

-Louie