Curiosidades
Get flash to fully experience Pearltrees
Thinking Machine 4: Play the Game
The Thinking Machine! Máquina mostra visualmente no tabuleiro as linhas de raciocínio do jogo de xadrez by Feb 11
Lottery Quick Pick
<p style="background-color:#ffff90;padding: 0em .5em 0em .5em;font-size:.9em"><strong>Warning:</strong> Your browser does not support JavaScript – RANDOM.ORG may not work as expected</p> This form allows you to quick pick lottery tickets. The randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs. You must <a href="https://www.google.com/support/adsense/bin/answer.py?answer=12654">enable JavaScript</a> in your web browser before this form will work. If your lottery is not listed, pick any country, then select ‘Other Lottery’ and fill in the other fields.
A História e Geografia das invenções.Quando e onde elas foram criadas.
The tables below are divided by era. The lists are being enlarged all the time. There is also a search engine for more specific searches of the data. The following regions, empires and countries are listed (in chronological order):