Musings on Radio, Computers, Technology, and Family
The Raspberry Shake has some nice software available with it. One of the nicest things to start out with is an app available for Android phones called “EQInfo“. It provides a list of recent earthquakes, as detected by various monitoring agencies. You can click on a quake, and see a seismometer’s trace of the Read More …
I live in Northern California, about halfway between the San Andreas and Hayward faults, in an earthquake-prone area. I’m also fascinated by science and computers. So when I saw the http://raspberryshake.org site, where you could get your own personal seismometer station and network it together with others to form a net capable of locating and measuring earthquakes, Read More …
My computers now know what time it is, to the millisecond, without using the Internet. I put together a stratum-1 ntp time server, based on a Raspberry Pi 3 model B with an Adafruit Ultimate GPS Hat. I put the whole thing into a C4 Labs Zebra GPS HAT Case, made of layers of shiny acrylic. Read More …
Every radio enthusiast in the Western hemisphere is familiar with radio station WWV, which will have been been steadily broadcasting time signals for 100 years in October of 2019, if it makes it that long. If it makes it that long? Yes, the world’s oldest continuously operated radio station may cease operations, if the proposed Read More …
I took this photo in an elevator on a recent trip to Italy. Notice the buttons are labelled negative one and zero. In the USA, I’ve never seen an elevator with floor “0”, never mind floor “-1”. This elevator is in a train station, and goes between ground level and an underground tunnel that allows Read More …
Here is a peek at the hardware which you are using right now to view this website. It’s hosted on a Raspberry Pi, a tiny, inexpensive Linux machine. This one is running “headless”, meaning it has no keyboard, mouse, or display. Instead, I connect to it via ssh, http, or other network protocols. The black Read More …