In the last few days, I’ve heard a few stations in countries I hadn’t seen before, like Guatamala, Brazil, and Portugal. Here’s my updated map:
To all the moms out there in the world, thanks for all the wonderful things you do for all your children. And while I’m at it, happy birthday to me!
Alan, VK2ZAY, has a really nice blog with all sorts of interesting experiments. Today’s fun installment was a radiation detector that’s just about as simple as can be imagined, ao aimple and inexpensive that I am pondering the possibility of using a similar circuit as part of a sensor for a balloon launch. Very cool:
It also made me realize that I didn’t understand how a common smoke detector (which I know includes Americium, but little else) actually worked. Wikipedia of course comes to the rescue, and tells me the basic idea.