A glass of wine in the evening to celebrate a successful day is the best way to make amends for all the efforts that went into achieving those successes.

The start of a cormorant is an impressive event, at least if you can show this start in individual interval pictures.

Chess computers are a great opportunity for brain teasers and the training of strategic thinking. Chess computers are particularly fun when they display their moves visually with light games and thus interact visually with the human player.