The Swiss plan to clean up the near-space environment. They just announced a debris removal device which they plan to launch in three to five years. The first goal of the program is to scoop up two satellites. Both of them are Swiss owned, but there’s something very James Bond like that pops into our heads when we hear that.
We’re sure you already know there’s a space junk issue in orbit. But did you know that NASA tracks a half-million pieces of orbital debris? Cleaning that up does sound like a good thing. The plan is to detect the offending item, match its trajectory, grab it somehow (which includes halting any spinning that it’s doing), then encapsulating everything for an eventual re-entry. Looks like they plan on the whole robot burning up along with the junk during that final stage.
We keep hearing about ways robots will clean up the messes we make. Hopefully we’ll see these in action at some point.
We see people driving around the night before trash collection and reclaiming items doomed to the land fill (or on their way to recycling… who knows). We’re beginning to think we need to join those ranks. Case in point is this vintage oscilloscope which [Bob Alexander] plucked from the curb in the nick of time. Here’s the kicker, when he got it home he found it still worked! He couldn’t let this opportunity go to waste, so he figured out how to turn it into a clock without losing the ability to use it as a scope.
You probably already know that it’s possible to display your own graphics on an oscilloscope. In fact, you can buy a board from Sparkfun which will turn the scope into an analog clock, and that’s exactly what [Bob] did. But he was met with two problems, the X-axis was flipped and he didn’t have an easy way to power the board.
He struggled with the voltage supply, frying his first attempt at boosting the internal 6.3V supply to use with a linear 5V regulator. His second attempt worked though, soldering a 12V regulator to the transformer. He was then on to the X-axis correction, using a rail-to-rail op-amp to invert the signal. The project finishes by adding toggle controls and buttons on the back of the case to switch between scope and clock modes, and to set the time.
For those out there who would enjoy a quick and interesting weekend project, this odometer made by [PeckLauros] is for you. Featured on Instructables it is made from the simplest of materials including some cardboard, a calculator, wires, glue, hot glue, magnetic drive key, an old CD and a reader, and a rubber band. The magnets, when attached to the CD work in a calculation to add 0.11m to the calculator when a magnet closes the circuit. [PeckLauros] points out that since it is a homebrewed device, it does have flaws such as adding 0.11m twice when the CD is rotated too slowly. It is easily fixed by simply running faster. The video is below the break.
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