| Let's attempt to do the practice which places two sheets of coins on the desk.Because it is the same coin, it doesn't seem to be stereoscopic but it is the way
of practicing which is easily made anywhere.
||The coin seems to be three when looking absentmindedly in the feelings as it sees the bottom of the desk. At first, it is possible to be absentmindedly seen, but the focus suits when seeing just as it is and can be clearly seen.
||Let's expand the interval of the coin if it is possible to have been seen. The focus gets to suit with gradually the wide one.
| If there is a place which the wallpaper of the repeat pattern with the same pattern has been pasted in to the wall in the house, it is possible to do the practice of the cross-eyed viewing. The pattern can attempt to finish emerging. It places one part to be seeing with the eyes on either side, and the place both near and far sense is different from two coals when changing and can be seen. It is possible to be seen with a rough face when there is a print pace difference.