Sacred Mathematics - Japanesse Temple Geometry

This is a book about a special kind of geometry that was invented and widely practiced in Japan during the centuries when Japan was isolated from Western influences. Japanese geometry is a mixture of art and mathematics. The experts communicated with one another by means of sangaku, which are wooden tablets painted with geometrical figures and displayed in Shinto shrines and Buddhist temples. Each tablet states a theorem or a problem. It is a challenge to other experts to prove the theorem or to solve the problem. It is a work of art as well as a mathematical statement. Sangaku are perishable, and the majority of them have decayed and disappeared during the last two centuries, but enough of them have survived to fill a book with examples of this unique Japanese blend of exact science and exquisite artistry.

http://kknop.com/math/sangaku.pdf

More Posts from Laossj and Others

laossj

7 years ago

Struggle no more – Virtually choose your nail polish color

In an effort to solve the trial-by-purchase problem, the nail gurus at Sally Hansen are introducing a new app which lets you virtually paint on nail polish.

With ManiMatch, there’s no need to upload a photo or take a picture. Launch the app and put your hand in front of the camera and it starts scanning to determine your skin tone in order to provide color recommendations. Choose one, and the app paints the color right onto your nails then, Voila! Your nails on the screen.

69 notes View Post

laossj

7 years ago

ARKit + CoreLocation

Coding project from Andrew Hart demonstrates how ARkit for iOS can apply Augmented Reality for geolocation guidance:

ARKit + CoreLocation pic.twitter.com/nTdKyGrBmv

— Andrew Hart (@AndrewProjDent)

July 17, 2017

ARKit + CoreLocation, part 2 pic.twitter.com/AyQiFyzlj3

— Andrew Hart (@AndrewProjDent)

July 21, 2017

Andrew has said that the source code for this project will be up on Github soon (possibly later next week)

133 notes View Post

laossj

7 years ago

Elephant-octopus-inspired robotics

Festo’s BionicMotionRobot takes inspiration from the delicate precision movements of an elephant’s trunk and an octopus’ tentacles to create what is undoubtedly the least adorable robot we’ve featured on the MW blog.

1K notes View Post

laossj

8 years ago

Artificial Intelligence learns to beat Mario like crazy.

245 notes View Post

laossj

7 years ago

Kidachi

Japanese programmer has unveiled proof-of-concept effects for Augmented Reality game made with ARKit including visual filters and Predator-like optical camouflage:

ミッション1【野良アンドロイド（光学迷彩搭載機）の発見・確保】 #ARKit pic.twitter.com/7m0esEGrUt

— kidachi (@kidach1) August 19, 2017

[Bing Translation:] Mission 1 [Nora Android (optical camouflage aircraft) find & secure] #ARKit

You can follow Kidachi on Twitter here

1K notes View Post

laossj

8 years ago