I do like a good eclipse, but not enough to be awake at 3am to photograph it. So, I set up a camera to take one picture every 30 seconds, pointed it roughly where I expected the moon to be at the time of maximum eclipse and set it recording. Stacking the images with StarStaX …
Author Archives: David
ARA2015
Gone to do Dublin to present work of great importance STOP Back this evening STOP Day visits to conferences are a silly idea STOP
Perseids meteor shower
I watched the meteor shower from the field at the Secret Nuclear Bunker where a group of us were camped doing radio stuff including bouncing signals off the ionized gas trail left by burned up meteors (meteor scatter). I captured this time-lapse video which does include a few meteors as well as a pass by …
A pretty visitor to the garden
A nice Garden Tiger (Artica caja) spotted this morning on the grass in the garden. It’s a widespread moth, strikingly colored and patterned. I’ve not seen the larval form on any of its likely food plants, so have no idea if there will be more appearing soon.
De-capping ICs for fun and profit, but mostly fun.
Some time back, a friend @codfishcatfish was building a GPS disciplined oscillator for radio measurements. Part of the circuit uses a MAX232 device to interface the low voltage digital signals to a PC serial port. He found his cheap (from eBay) MAX232s got very hot and failed in use. It was obvious the devices were …
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