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House Democrats ask to be removed from Trump impeachment resolution Hikers discover nearly 600 gold coins dating back to 1808 ...

On top of the table, a metal sphere attached to the magnet moves through craft sand to draw attractive patterns. An Arduino and Raspberry Pi work together to command the stepper motors to create ...

In this case, sand, water, and metal BBs. The first experiment was a mixture of salt and water used to make a can chiller for soda or beer (the blue thing in the upper right). It took some ...