Читать книгу The Magical Peppers and the Great Vanishing Act - Sian Pattenden - Страница 7

An excerpt from TRICK: Möbius Magic

You will need paper, Sellotape and scissors for this trick. Tell your audience you have made a loop out of paper to put round your wrist, but it won’t fit. “Stone me,” you’ll say, “I’ll just cut the loop bigger!” Your clever audience will laugh as they know you cannot make a loop bigger just by cutting it.

However, if you cut the loop in half up the middle, instead of into two loops, you will now have one larger loop.

The secret is that your original loop is actually a Möbius Strip – a mathematical marvel – made from a strip of paper that has been twisted once and then taped together {see fig. 1}.