New Toy: Meet the Wobbleometer(TM)

I’ve had my eye on the Raspberry Shake seismometer for a couple of years now. Last week, I finally succumbed and bought both a new Raspberry Pi (just a 4B 2GB RAM – cheap yet more than adequate) and a Shake 1-D.

The 1-D is a simple seismometer, responding only in the up/down direction. Other products are available…

Mine arrived as a kit, that even I was able to stick together in under half an hour (thanks to a youtube video showing what most of the screws and things were for).

I installed and levelled it on the downstairs windowsill and plugged it directly into the main ADSL router – when you’re uploading a hundred samples per second, minimizing latency is essential.

Obviously, being based in mainland Scotland, I don’t expect to see that many significant earthquakes. We get a handful of ~magnitude 2.5 around the country every couple of years if we’re lucky. However, recently YouTube has sent me down a rabbit-hole of geological analyses of goings-on in Iceland’s Reykjanes peninsula – the recent sequence of volcanic eruptions alternating with tiny earthquakes as the magma chamber refills.

The very first night, I spotted a magnitude 3.6 quake in Iceland.

Since then, the live data stream has sadly been unavailable for about 5 days, but when it works, the ability to select a quake event and then click on a station and see the station’s raw data really rocks.

There was another magnitude 3.7 earthquake along the Mid-Atlantic Ridge offshore a few miles south-west of Grindavik yesterday. The live-data view is currently working in the mobile app, leading to this analysis – showing the P and S waves propagating from the event.

As monitoring equipment goes, I’m impressed. It’s a wonderful device, very sensitive yet easy to set up and works well. I’ll continue to watch for all quakes nearby and larger ones further afield, if only to be able to say “I saw it” 🙂

Gardening is People

Some decades ago, my folks were planning their garden; a friend of the family who happened to be an old gardener recommended two things: a mahonia bush and a snake-bark maple. The latter is gone but the mahonia remains, decades on.

Everywhere I consider home has had at least one mahonia – it’s a measure of garden completeness. Today I planted one in the back mud-patch and thought of Tom of old.

Neighbours from Argyll days once recommended an Osmanthus. Today I planted one and thought of them.

The willow tree came directly from friends in Argyll as well and was planted a few months ago. (I’m not convinced it’s thriving, however!)

It wouldn’t be the first place I’ve lived to have had hebes in the borders either.

So. That’s the heart of a gardener, is other people remembered.

Nacreous Clouds

It was a pretty decent red sunset but seeing polar stratospheric (nacreous) clouds for the first time is the icing on the cake. Awesomely beautiful.

According to wikipedia, polar stratospheric clouds are clouds in the winter polar stratosphere at altitudes of 15,000–25,000 meters (49,000–82,000 ft). They are best observed during civil twilight when the sun is between 1 and 6 degrees below the horizon. They are implicated in the formation of ozone holes. The effects on ozone depletion arise because they support chemical reactions that produce active chlorine which catalyzes ozone destruction, and also because they remove gaseous nitric acid, perturbing nitrogen and chlorine cycles in a way which increases ozone destruction.

Now with added solar panels

The first thing I did on buying a new house in November was to have solar panels installed. Like, within 24hrs of having keys in hand I’d had two companies round to try and sell me their wares and made a decision.

The installation was not the easiest, as December 4 coincided with Storm Desmond and the house gets fairly battered by the wind at the best of times. That, and it’s taken another week to get everything wired-up and configured.

It’s also not been the best of weather – cloud, foggy, rainy and windy – for the past week as well. So today has been the first real day of generating electricity – with actual data-logging of some sort.

I’m well happy to have seen a clear couple of hours around lunchtime in which generation peaked at just over 200W.

Solar Panel output, first day

Solar Panel output, first day

Bring it on! 🙂

Unidentified Flower

Unknown Flower

“Step 1
Determine whether the flowering plant is an annual or perennial, herbaceous, deciduous or evergreen.”

Huh? It’s pink/purple and has distinctive fine pointy petals in a 6-pronged star arrangement.

Does anyone know what it might be?

Fern Bokeh

Ferns

Ferns

The past couple of days I’ve been experimenting with the old Pentacon 50mm f/1.8 lens; its bokeh wide-open is quite spectacular, giving this small scene a strong sense of depth.

Flame On!

A couple of days ago the shed door started coming off its hinges altogether in ordinary use – the wood underlying the screws had rotten away.

This afternoon, we burned the whole thing – and a great bonfire it made, too, with the roofing felt melting, burning, exuding a thick black smoke (fortunately not for too long).

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Proto-Spuds

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Having installed raspberries in January, today saw the second significant planting of the year: an old flower bed given a sense of purpose, dug over and mounds filled with planted potatoes (Harlequin variety, since we preferred it to the purple things last year, and it claims to be good for everything from salads to boiling to mashing).

Preemptive

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It’s not even New Year yet, and already that’s the leeks moved and replaced with the 20 new raspberry canes we got for Christmas…