Project Blueprint Euler's Disk, Desk Toy Tarot and other primitive weapons with

and other primitive weapons with the Lacandon in Yucatán

the balls can be easily arranged to hold pens

how to interact with lucid dream figures

and other shared or public spaces

Project Blueprint Euler's Disk, Desk Toy Tarot and other primitive weapons withA hypnotic display of light and sound that spins science into art. The 3" diameter chrome plated steel disk will spin faster and louder the longer it rotates. Just give it a spin and gravity does the rest. Includes Disk, 9" concave mirror base and 9 pieces of holographic, magnetized foil. 6 disks included per pack. Age Grade: 8+ Product Dimensions Weight: 9. 4 L x 9. 9 W x 1. 7 H 2. 0 lb Inner Pack Dimensions Weight: 10. 60 L x 10. 10 W x 10. 70 H 13.