I have always hated mowing the lawn. I was the guy who only mowed when the grass got to be 6″ taller than the neighbors’ lawns — not because I don’t like my neighbors, but because mowing was such a pain. After being hit by one too many rocks, I decided I no longer wanted […]
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Finger puppets are fun storytelling devices that provide hours of imaginative play. With a mere wag of a finger, your puppet comes to life and begins its theatrical performance. Your puppet’s persona is predominately determined by its design. Is it big and clumsy? Slender and refined? Jolly with a knobby nose, or nervous with beady […]
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Albert Einstein once wrote that God does not play dice with the universe. To which Niels Bohr (or Enrico Fermi) reportedly replied, “Stop telling God what to do with his dice.” Here’s a mood lamp that expresses these dice as 4 multicolored cubes that blink randomly, with true randomness — not the deterministic, pseudo-random chaos […]
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RC hobby servomotors were just made for hacking. What’s not obvious is how much you can hack them — with a few tricks, you can use a servo to control almost anything. Hobby servos consist of a DC gear motor, a potentiometer (usually 5K), and a control circuit. The output shaft is the output of […]
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This is a modification of the LED jellies contributed by Angela Sheehan. For design instructions for jellies, check out Angela’s project. For this project you will need to know how to use a soldering iron, a hot glue gun, and a drill. WARNING: Do not multitask with these tools! They can be very dangerous!
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