Lunar auto repair depends on the sticky stuff

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When you’ve got problems with your lunar rover you can’t just “trust the Midas touch”. Every unexpected repair that happens outside of the Earth’s atmosphere is a hack and it seems the common ingredient in each one is Duct tape. If you’ve seen the movie Apollo 13 you know it was used in making a square carbon dioxide filter fit into a round filter socket. [XD] let us know about another hack where NASA used Duct tape to replace a fender on the lunar rover during the Apollo 17 mission.

The rover kicks up a lot of moon dust as it cruises around on its wire tires. When a rear fender started to come loose it was secured with duct tape. We delighted in watching a moon-man tear off chunks of tape for the fix, shown in the video after the break. When the fender finally flew off of the vehicle, the engineers on the ground came up with a way to replace it using laminated maps and more duct tape.

We’ve been critical of the use of duct tape in the past. But when you’re in a bind, accept no substitutes.

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Reverse geocache puzzle

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[Mikal] wanted to create an awesome electronic wedding gift for his friend who was moving to France. After experimenting with a few things, he settled on creating a puzzle box that would only open in a certain location. Since his friend introduced him to the Arduino, he fittingly used one in the design, along with a serial GPS module and a mini character LCD. The box itself is locked using a servo-controlled chopstick, which could theoretically be snapped if [Mikal] really screwed something up. To save battery life, he used a small Pololu module to provide power that uses only 0.01 microamps in standby, and can be shut off by the Arduino.

The box was designed to be mysterious yet self-explanatory. When the button on the front is pushed, the box comes to life for 3 minutes, displaying the distance away from secret location. Additionally, it warns how many tries are left: the button can only be pushed 50 times before it is sealed “forever”. In order to open the box, you have to be within 2km of the destination. Theoretically, you can narrow down the location to one of 2 points after 2 readings, but a less scientific approach would probably be a lot more fun.

This seems like an amazing gift, and the same concept could be repurposed into hundreds of other devices. For extra fun, he could have placed it at a geocache location.