The second of this winter’s videos of Cauldron Falls. This – and other videos and photographs from my Winter 2024 trip – can be found here.
Author Archives: ChrisC
Maps – Early Spring 2025 Update
It’s time for another little update and this time it’s 182 maps of Cardiganshire taken from the ‘Ordnance Survey Maps – 25 inch England and Wales, 1841-1952’ series.
Interesting places covered this update include:
Tours of Old York #3: The City of Legions
And onto another Tour of Old York. This time our video comes courtesy of the British Pathe YouTube channel and brings us two and one quarter minutes of footage of York shot between 1930 to 1939.
‘The City of Legions – York’
York Central works on Google Earth
It looks like Google Earth’s satellite view has updated to show some of the new work around the York Central development. The latest imagery is, as of writing, still about six months out of date – but you can really see how the area is starting to change in comparison to 2023 and 2022.
September 28th, 2024
June 16th, 2023
September 13th, 2022
Using Machine Learning for Geoglyph Detection
PNAS has an interesting paper on using AI and Machine Learning to try and identify new Nazca Pampa geoglyphs in the Peruvian Nazca Desert. It’s a fun little lunchtime skim with a few nice images of some of the newly found geoglyphs.
Cauldron Falls – Winter 2024
And here’s is the first of a set of videos taken at Cauldron Falls in the Winter of 2024. See more videos and photographs from that trip here!
Happy 30th Birthday ‘Anglosphere’!
So here’s something of an oddity; the Oxford English Dictionary thinks the word ‘Anglosphere’ is a mere thirty years old this month.
Converting Video to Image Sequences with ffmpeg
Another little aide-memoire masquerading as a blog post; the specific incantation required to turn a video into a named sequence of images with ffmpeg is…
ffmpeg -i <path to source video> -vf fps=<frames per second> <output directory/basename->%d.png…where…
<path to source video> is the path to the video file in question.
<frames per second> is the number of frames per second of footage to extract. This can be less than 1 if you wish to extract at a lower rate than one frame per second.
<output directory/basename->%d.png is a composite instruction to create files in the directory ‘output directory’, for these files to have the prefix ‘basename-‘, and for these files to have an incrementing count appended to the end. It also specifies that the output files should be in the ‘.png’ format.
How the BFI uses 3D printing to help maintain it’s archive machinery
A nice short on how the British Film Institute uses 3D printing to maintain and improve it’s archiving tech.
The UX of LEGO Interface Panels
This is a nice little introduction to UX design issues via the medium of Lego interface blocks: https://interactionmagic.com/UX-LEGO-Interfaces/