Today is Day 2 of working on the new book. To celebrate, here are three lovely ‘come forward – stand back’ illusions today…..
Do they work for you? Which is your favourite?
Archive for May, 2011
Come forward, stand back. Come forward, stand back.
May 31, 2011Answer to the Friday Puzzle!
May 30, 2011On Friday I posted this puzzle…..
The following equation is obviously wrong:
but….
1) Can you add 4 lines to make it correct?
and
2) Can you add 3 lines to the equation and make it correct to six decimal places?
If you have not tried to solve it, have a go now. For everyone else, the answer is after the break.
It’s the Friday Puzzle!
May 27, 2011The following equation is obviously wrong:
but….
1) Can you add 4 lines to make it correct?
and
2) Can you add 3 lines to the equation and make it correct to six decimal places?
As ever, please do NOT post your answers, but do say if you think you have solved it and how long it took. Solution on Monday.
I have produced an ebook containing 101 of the previous Friday Puzzles! It is called PUZZLED and is available for the Kindle (UK here and USA here) and on the iBookstore (UK here in the USA here). You can try 101 of the puzzles for free here.
Give me 60 seconds of your time…..
May 26, 2011…and I will make you gasp and laugh…..
I love the fact that there is much more going on than meets the eye. What do you think?
See a rainbow right now!
May 25, 2011I am a fan of afterimage illusions like this….
I thought that it would be fun to use the effect to create nonexistent rainbows. To experience this dramatic and lovely effect just stare at the dot in this image for 20 seconds and then look out of the window at a patch of blue sky (it might be helpful to click on the image to open it up full size before you start).
Did it work for you? Enjoy the effect?
5 amazing faces
May 24, 2011First, if you would like to receive my occasional newsletter about new projects and experiments, click here.
Here are 5 pics of objects that look like faces…..
1)
2)
3)
4)
5)
Which is your favourite?
Answer to the Friday Puzzle….
May 23, 2011On Friday I posted this puzzle…..
What value should ‘x’ be in the following sequence?
16 06 68 88 x 98
If you have not tried to solve the puzzle, have a go now. For everyone else, the answer is after the break!
It’s the Friday Puzzle!
May 20, 2011What value should ‘x’ be in the following sequence?
16 06 68 88 x 98
As ever, please do NOT post your answer, but do feel free to say if you have solved it and how long it took. Also, it is ok to leave fake/joke clues (but no real ones!). Solution on Monday!
I have produced an ebook containing 101 of the previous Friday Puzzles! It is called PUZZLED and is available for the Kindle (UK here and USA here) and on the iBookstore (UK here in the USA here). You can try 101 of the puzzles for free here.
Can you solve the ghost mystery?
May 19, 2011A few days ago I received an email saying….
“I promote a weekly event at xx and have done for the last 9 years now. But I have and many other people have experienced many strange happenings ….(cut)… last week I took a photo of my friend and when I looked at the back of her I caught something unexpected….I need your expert skill I’m really not sure if this is an effect that has been coursed by over exposure from the flash on my phone or if this woman in the back has decided to show me her new born baby to say that I’m not crazy lol.”
Any ideas?
Can you solve the mystery of the balloons?
May 18, 2011Yesterday @jbrownridge brought my attention to this mystery….
These guys were taking photos of air pellets bursting balloons (as you do) and when they looked at some of the photos they noticed something very strange……
“So we were shooting waterballoons with an air gun and taking pictures of it at 60 FPS using the Casio EX-F1. When I looked at the shots afterwards, I WTF’d when I saw the shadow blowing up before the balloon. Does anyone know if there is a reasonable explanation for this, or should I just settle for witchcraft?”
Can you solve the mystery of the balloons? Try to do it WITHOUT looking at the comments!
What do you see when you look at this?
May 17, 2011As you might know, I am a fan of bi-stable images like the famous duck-rabbit illusion…..
Imagine my delight then, when one of the top ten entries for the 2011 Best Illusion of the Year competition (here) involved a wonderful bi-stable image of a face/two lovers kissing, by Gianni Sarcone, Courtney Smith & Marie-Jo Waeber from the Archimedes Lab Project in Italy. Here it is….
What do you think?
Answer to the Friday Puzzle….
May 16, 2011
On Friday I posted this puzzle….
Yesterday I saw a column in the middle of town. It was exactly 200 feet high and 16 feet 8 inches in circumference. Someone had wrapped a spiral garland around the column exactly five times. What was the length of the garland?
If you have not tried to solve it, have a go now. For everyone else, the answer is after the break….
It’s the Friday Puzzle!
May 13, 2011Yesterday I saw a column in the middle of town. It was exactly 200 feet high and 16 feet 8 inches in circumference. Someone had wrapped a spiral garland around the column exactly five times. What was the length of the garland?
As ever, please do NOT post your answers, but do say if you think you have solved it and how long it took. Solution on Monday!
I have produced an ebook containing 101 of the previous Friday Puzzles! It is called PUZZLED and is available for the Kindle (UK here and USA here) and on the iBookstore (UK here in the USA here).
Best ever Victorian illusion?
May 12, 2011Everything about this is wonderful. Simplicity, great music and wonderful effect….
Any ideas how to create these images?
How many faces can you spot?
May 11, 2011This is a wonderful illustration……
…..how many faces can you spot?
