Fraser Spiral Illusion Green – Tote bag

$25

Description

The Fraser spiral illusion is an optical illusion that was first described by the British psychologist Sir James Fraser (1863 – 1936) in 1908. The illusion is also known as the “False spiral”, or by its original name, the “Twisted cord” illusion. The overlapping dark arc segments appear to form a spiral; however, the arcs are a series of concentric circles.

The visual distortion is produced by combining a regular line pattern (the circles) with misaligned parts (the differently colored strands). Zöllner’s illusion and the café wall illusion are based on a similar principle, like many other visual effects, in which a sequence of tilted elements causes the eye to perceive phantom twists and deviations.

Bring your favorite design everywhere you go.

• 100% spun polyester weather resistant fabric
• Bag 15″ x 15″ (38.1cm x 38.1cm)
• Capacity – 2.6 US gal (10l)
• Maximum weight limit – 11lbs (5kg)
• Dual handles 100% natural cotton bull denim
• Handle length 11.8″ (30 cm), width 1″ (2.5cm)
• Made in America

Additional information

Weight 0.14 lbs
Product Type

Tote Bag

Reviews

There are no reviews yet.

Be the first to review “Fraser Spiral Illusion Green – Tote bag”

This site uses Akismet to reduce spam. Learn how your comment data is processed.