Napier's Bones

Napier's Bones
Napier's Bones was designed in 1617 by John Napier a Scottish Mathematician. In its day it was a wonderous device that simplified complex multiplication and other math processes such as long division and square roots. It was essentially the first calculator and was in common use for nearly 3 centuries.   This is something I find wonderfully elegant in understanding and explaining ho... Learn More+
Get In The Box
Get In The Box
Benjy Siamese Octagon II (Side by Side) - Black Body
Benjy Siamese Octagon II (Side by Side) - Black Body
Problems for Practice
Problems for Practice
Marshmallow Extreme Blaster
Marshmallow Extreme Blaster
Chocolate Band-Aids
Chocolate Band-Aids
Rainbow Gay Pride Beads - Puka Necklace - Gay and Lesbian LGBT Pride
Rainbow Gay Pride Beads - Puka Necklace - Gay and Lesbian LGBT Pride
Four in the Box
Four in the Box
Capture the Flag Redux
Capture the Flag Redux
Escape Mail: Season 1 - Episode 7 Buried
Escape Mail: Season 1 - Episode 7 Buried
American Cars of the 1950's
American Cars of the 1950's
Aztek Mini 2 Pack Puzzles: Aztec Flower & Atlatl
Aztek Mini 2 Pack Puzzles: Aztec Flower & Atlatl
LGBT Equality Laser Etched Stainless Steel Dog Tag Pendant - Gay and Lesbian Pride Necklace
LGBT Equality Laser Etched Stainless Steel Dog Tag Pendant - Gay and Lesbian Pride Necklace
Famous Trick Donkeys - Small
Famous Trick Donkeys - Small
Full Rainbow Pride Velcro Wallet w/ 13
Full Rainbow Pride Velcro Wallet w/ 13" Chain- LGBT Gay and Lesbian
8mm - Unisex or Men's Wedding Tungsten Band. Ring with Black Matte Finish Tungsten Carbide Ring with Inside Red Beveled Edge.
8mm - Unisex or Men's Wedding Tungsten Band. Ring with Black Matte Finish Tungsten Carbide Ring with Inside Red Beveled Edge.
Ticket To Ride: Amsterdam
Ticket To Ride: Amsterdam
Men's Tungsten Wedding Band (8mm). Black and Green Mens Celtic Wedding Band. Black Resin Inlay Hunter Green Celtic Knot Tungsten Carbide Ring
Men's Tungsten Wedding Band (8mm). Black and Green Mens Celtic Wedding Band. Black Resin Inlay Hunter Green Celtic Knot Tungsten Carbide Ring
Canada-opoly
Canada-opoly
Men's Tungsten Wedding Band (8mm). Wedding Band Black with Silver Mechanical Gears Over Black Carbon Fiber. Tungsten Carbide Ring
Men's Tungsten Wedding Band (8mm). Wedding Band Black with Silver Mechanical Gears Over Black Carbon Fiber. Tungsten Carbide Ring
Smooth Flat Anodized Rainbow Ring - Gay and Lesbian LGBT Pride Jewelry
Smooth Flat Anodized Rainbow Ring - Gay and Lesbian LGBT Pride Jewelry
Rainbow Flower Hawaiian Lei - LGBT Gay and Lesbian Pride Party and Parade Accessory
Rainbow Flower Hawaiian Lei - LGBT Gay and Lesbian Pride Party and Parade Accessory
Tropical Nerds Rope
Tropical Nerds Rope
Ninja Pen with Sound FX
Ninja Pen with Sound FX
Ceramic Greek Coffee Cup
Ceramic Greek Coffee Cup
Bowling Pin Puzzle
Bowling Pin Puzzle