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Wil Selwood
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Wil Selwood

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The +Satellite Applications Catapult​ is hosting another inventorthon in two weeks time.

These are overnight hackathons with access to a lot of cool tech. They have a huge video wall made of some silly number of HD screens, a surface table, and all sorts of interesting things to play with.

At the last one we built a black box flight recorder which transmitted the data in realtime over the internet for a hex-copter drone one of the staff brought along. We won best use of tech for it.

This year the theme is bring your own disaster. More information here: http://www.inventorthon.com/

Sign up here: http://www.inventorthon.com/register-now/

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Wil Selwood

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Playing with photospheres this morning in my tiny back garden.

All the straight lines cause it a lot of problems. The change in light between the back of the house and the sky came out really blury I guess because half the source frames were very dark.

The sky came out well though.
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Wil Selwood

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A rather lovely day for a walk to Long Wittenham. 
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Going through some old books at mums house. Found the eye witness guide to the future.

Fantastically far out predictions. Either doesn't go far enough or goes way way to far. The time line of the future is wonderful.
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Wil Selwood

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If you have a few quid to spare please help out one of the nicest and more wonderful people on here.

Also if your not following +Jessica Pierce​ you really should, just to get lots of happy horse related posts in your stream.
 
This is Libby, the sweetest, who gets nervous in the wash stall. When she first came to us, she had an awful skin condition that required a lot of medical baths, which must have hurt. A bath hasn't hurt her in a year, but she still gets scared. 

This is what treats are for. Treats help a lot. It's a moment of distraction, a pleasant thing to contrast with a scary experience, and a way to communicate to the horse that I'm on her side. A lady with pockets full of treats couldn't be all bad, even if she's a giver of baths.

We are low on treats, is what I'm getting at! Once again I am asking the amazing internet for help. I just reworked our amazon wishlist - http://amzn.com/w/F4UQRDA3K6VT ; nothing over $20 - and had the great pleasure of removing grooming brushes, shedding blades, hoof picks, and wash supplies. Thanks largely to you people, we are doing pretty ok on all those things for the moment.

Because people keep asking (thank you!), our current needs are:

- treats! 

- fly traps, please help me destroy my nemesis the fly

- electrolyte pills, which I just found out are a thing, and could make such a difference for all our horse people. It has been in the 90s every day for weeks here, and some of our instructors are out in it all day. I feel my brain power draining away after a few hours so I really don't know how they keep going. These pills seem more practical than Gatorade. Plus we are all so sick of Gatorade.

As always, thank you all so much for helping, reading, sharing these posts, or caring at all about these horses and what we do. It means more than you could know.
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While I am aware half the UK is probably posting about it being too hot. I think I've found a flaw in the placement of the sensor for my weather station. Online lists show Oxfordshire got a high of 33 degrees not the 40 the sensor recorded.

The internal one agrees with my thermostat. Unfortunately my house doesn't have a better place to put it. Moving it to the north side of my house would require putting it in next doors living room.
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Wil Selwood

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This is quite something.
 
[Throwing a torch in Virtual Reality] 
This seems like a bigger achievement than it looks : Two guys basically blindfolded, using a digital representation as their basis of motor functions like throwing/catching. Pretty wicked.

The speed of the calculations occuring here is absolutely mind-blowing.
Person A starts to move arm - computer A sends information displaying arm movements and torch location. computer B receives the information and displays it for Person B. All fast enough for Person B to actually physically catch the torch. The simulated times and distances and RL times and distances have to be within an extremely low margin to successfully catch a thrown object.
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This is looking like a great weekend. Really wish I wasn't already booked for that weekend but if you can get to this I would recommend it. The catapult usually throw a good event
NanoSat Weekend. Would you like to build your own satellite? Would you like to do that in a single weekend...and fly it too? The Satellite Applications Catapult has developed a build-your-own satellite kit. Over the course of a weekend you will assemble, test and program your own satellite, ...
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Wil Selwood

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Been playing around processing the minor planet centre orbit files using Go for a while now. Recently got it processing the data to create some visualisations from it.

None of the processing is particularly complex but it does give a nice completely static output.

Go seems quite well suited for this kind of thing. Creating quick-ish little programs to do a simple task.
 
While playing with the minor planet centre orbit files I've been building some visualisations.

Here are the first reasonable results https://wselwood.github.io/astro-grid/

The chart shows each asteroids minimum distance from the sun vs its maximum distance from the sun. Each square is 0.1 of an AU. The brighter the colour the more asteroids are in that bucket.

Mouse over should give you counts. Clicking on a cell will bring up a list of all the objects in that cell. Clicking on any of the object names will take you to the JPL Small bodies database entry for that object.

The data was processed from the raw +Minor Planet Center Orbit files using a go program which is available on git hub. https://github.com/wselwood/astro-grid The display of the data is using entirely static files which means I can use git hub pages to host it. Which is handy. But it does mean that any extra information needs an entire reprocess of the data files to create.
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Nice work but please change the color. Blue on black text has very low readability because the human visual system has poor edge detection in the blue. I struggle to read the text down the right.
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Wil Selwood

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While playing with the minor planet centre orbit files I've been building some visualisations.

Here are the first reasonable results https://wselwood.github.io/astro-grid/

The chart shows each asteroids minimum distance from the sun vs its maximum distance from the sun. Each square is 0.1 of an AU. The brighter the colour the more asteroids are in that bucket.

Mouse over should give you counts. Clicking on a cell will bring up a list of all the objects in that cell. Clicking on any of the object names will take you to the JPL Small bodies database entry for that object.

The data was processed from the raw +Minor Planet Center Orbit files using a go program which is available on git hub. https://github.com/wselwood/astro-grid The display of the data is using entirely static files which means I can use git hub pages to host it. Which is handy. But it does mean that any extra information needs an entire reprocess of the data files to create.
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Strange noises coming from the cats water fountain this morning. This would explain it. Not entirely sure how it got in there. The back of the fountain has a grate to stop things getting to the pump.

My guess is he jumped/climbed up where the wire for the pump goes. Having been trying to hide under the fountain from the cat.

S/He has now been released back over the fence into the park. 
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It's a pretty narrow pipe on this model +James Brine​ was a bit of a surprise when taking it to bits though to find out why it was making odd noises. Not what I expected the fault to be at all. 
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+Outernet lets you get useful stuff from the internet via satellites in geostationary orbit, in places where other internet access is deficient. When we discovered that Outernet's DIY receiver is based on a Raspberry Pi, we had to try it out, and on 2 June we became, we think, the first UK receiver to get online. Find out more about this excellent project in a blog post by our own +David Honess.
Through working with the UK Space Agency on the Astro Pi project we’ve learnt about something called Outernet. Internet, Outernet – see what they did there? Outernet is a small company started by Syed Karim that broadcasts the most useful stuff from the internet via satellites in geostationary orbit. Anyone receiving the broadcast then has …
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Computer programmer. Geek. Space Nerd. Reader of dead trees. Player of games. Dad. Cat person
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Java, Scala, SQL, JavaScript (If I really have to), C, C++, Groovy, Linux, You know all the usual stuff.