Technology

Hypocycloid

Hypocycloid drawing tool

This is a tool that draws a hypocycloid figure made on a 3D printer. For a description of the hypocycloid, see here(link). 3D print data The gear ratios are 24 for the external gear and 17, 14, and 11 for...

bubble pop - 방울 터뜨리기

Bubble Pop

Icon Title Try popping the falling drops with your body. If your PC doesn’t have a camera, it won’t work. When the web browser asks for access to the camera, please allow it. (Personal data never stored on the server.)...

Picking up Stones 2

Picking up Stones 2

Pick up the stones each other. The person who picks up the last one wins the game. However, you can not pick up more than twice the amount of stones your opponent has taken. Pick-up puzzle and Fibonacci sequence For...

Picking up Stones

Picking up Stones 1

Pick up the stones each other. The person who picks up the last one is lost the game. You can not pick up more than three at a time. The computer thinks like this: Whenever I pick up 1, 2,...

Boat Puzzle: Missionaries and Cannibals

Boat Puzzle: Missionaries and Cannibals

Both missionaries and cannibals must cross the river safely. Boats can ride up to three people. If the number of cannibals is more than the number of missionaries anywhere, missionaries will be eaten.

Hanoi Tower

Hanoi Tower

The Tower of Hanoi is a mathematical game or puzzle. The objective of the puzzle is to move the entire stack to another rod, obeying the following simple rules: Only one disk can be moved at a time. Each move...

Robotic Vacuum Coding

Robotic vacuum cleaner

Goals of coding The room is filled with dirty dust. You must order the robot vacuum cleaner to clean the room. Combine the blocks to make the room clean. Not all blocks may be used.

Ant Nanny’s Larva Collecting

Ant Nanny’s Larva Collecting

Goals of coding Baby larvae are scattered all over the place. We have to order the nanny ants to collect the larvae. Combine the blocks to make the nanny ant collect the larvae.

Sorting Game

Sorting game

How to play Select two cards. The selected card turns red. If you want to exchange the selected card, press the [Switch] button. If you think all the cards are in order, press the [Flip All] button to confirm. Try...