Robot scientists control live mouse

Robot scientists control live mouse

Mouse For those who want to build a “real” mousey bot. Robotic scientists in China have succeeded in ‘controlling’ live mice. Experts at the robot research centre in Shandong Technology University controlled white mice by stimulating micro-electrodes on their heads. The mice obeyed computer-generated commands to, in succession, “turn left”, “turn right” and “move forward”. Link.

Solder surface mount parts with a toaster oven…

Solder surface mount parts with a toaster oven…

Bead The process starts with the use of a ‘Magic Ingredient’, a water-soluble solder paste. This ‘Magic Ingredient’ is available though DigiKey and is made by Kester Solders. Buying of the product in itself is interesting as it must be kept refrigerated and will only be delivered if ordered for overnight delivery. Since the material is water based it must be stored in a cold place (refrigerator) and only ‘keeps’ for a few months. Starting with a clean board, the solder paste is applied from the syringe. The paste comes pre-loaded into a syringe however, the reader must order the plunger for the syringe and the applicator tips separately. Link.

Hybrid Remote Control Lawn Mower

Hybrid Remote Control Lawn Mower

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Here’s a Hybrid remote control lawn mower, it’s a little pricey, but it looks amazing and they seem to offer a kit. 22″ mulch blade, Gas engine, Alternator, Two independent rear motors with speed control, Zero Turning Radius, Rear wheel tree guard shield, Wireless electric starter and a FM radio control. You can also get an optional gyro. Link.

Resurrecting this old amp update

Resurrecting this old amp update

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MAKE: Amends for issue 02: Page 116, 3b should read: “Reconnect the capacitor, switch the meter to DC voltage, turn off the input signal, and measure across the capacitor. Ours read 74 volts (V). The voltage rating on the capacitor is 75 volts, so there is not much margin in this old amp.” The title for the “Testing current/amperage” figure should be “Testing BFC current”. The title for “Testing Voltage” should be “Testing Output Current”. Link.