Computerphile

This is an explanatory video to accompany the last Computerphile entitled 'Free Software' which had a couple of technical problems. This is not a tutorial, nor is it a recommendation, it is the story of Sean trying to make a Computerphile video with GNU free software.

Free Software -made with free software: http://youtu.be/jaJ7vUu1ixg
Free Software -made with proprietary software: http://youtu.be/nXYly_wnAT4
Animated GIFs & Space & Time: http://youtu.be/blSzwPcL5Dw

p.s. The continuity is all over the place as I filmed some of this while in the process of making the last film and some of it after the film was published – watch my beard miraculously grow and be shaved & grow again as the film goes on, see night become day and day become night... Also I'd be interested to see if you're reading this whether you've decoded the binary in the GIMP-created graphics yet? -Sean

http://www.facebook.com/computerphile
https://twitter.com/computer_phile

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: http://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels

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There's a lot of talk of image and text AI with large language models and image generators generating media (in both senses of the word) - but what about graphs? Dr David Kohan Marzagao specialises in Machine Learning for Graph-Structured Data and takes us through some simple examples.

mor about David: http://kohan.uk/

https://www.facebook.com/computerphile
https://twitter.com/computer_phile

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: https://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com

Learn more about your ad choices. Visit megaphone.fm/adchoices

Why the Free Software Foundation say iTunes isn't free software. Matt Lee, Technical Lead at Creative Commons explains.

Swim Tracking App: http://youtu.be/-UxBdVirvJs
UTF8 & the Unicode Miracle: http://youtu.be/MijmeoH9LT4
The Kindle Text Problem: http://youtu.be/kzdugwr4Fgk
How this film was made: https://www.youtube.com/watch?v=MS7hXuO2UKE

A version of this film made with Avid (proprietary software): http://youtu.be/nXYly_wnAT4

This film was produced (almost) entirely with free software. The exception is that I transcoded the original footage to an easier to handle format before I started. The project has taken a week & involved me trying no less than five distros, several types of video editing software and spending hours waiting for renders which most of the time failed. I found a way of working which still took five hours to export from the editing software, in pieces, it was then pieced together by mkvmerge and uploaded.

There are some production issues with this film, such as glitchy audio and some harsh cuts, but they are partly down to my inexperience with the specific editing software and lack of patience and not necessarily purely to the software itself.

Thanks for reading this footnote - next step is to pull together a film on how I made this one! Sean

http://www.facebook.com/computerphile
https://twitter.com/computer_phile

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: http://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels

Learn more about your ad choices. Visit megaphone.fm/adchoices

Computing with counters. How "counter machines" are as powerful as turing machines, albeit slightly more convoluted! Dr Christopher Hampson, Senior Lecturer in Computer Science Education at KCL explains.

EXTRA BITS: https://youtu.be/ydmV-mWjftc

https://www.facebook.com/computerphile
https://twitter.com/computer_phile

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: https://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com

Learn more about your ad choices. Visit megaphone.fm/adchoices

Indoor navigation is tricky enough but try doing it in a swimming pool! Joe tells us how he's developed technology that could give you instant feedback on your swimming.
EXTRA BITS: http://youtu.be/dgZvSB5MAIg

More on Joe's swim tracking technology: http://bit.ly/swimmingapp

http://www.facebook.com/computerphile
https://twitter.com/computer_phile

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: http://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels

Learn more about your ad choices. Visit megaphone.fm/adchoices

The tongue-in-cheek title refers to the fact that eBPF can be a shortcut to programming inside the kernel. Dr Richard G Clegg of Queen Mary University London explains how this networking tool has morphed into more.

Richard's notes:

The Github link: https://github.com/richardclegg/ebpf_testing/

A tutorial if you want to find more:
https://play.instruqt.com/embed/isovalent/tracks/ebpf-getting-started?token=em_9nxLzhlV41gb3rKM&show_challenges=true

This is written by an expert but a bit dated now:
https://www.brendangregg.com/blog/2019-01-01/learn-ebpf-tracing.html

libbpf is useful:
https://github.com/libbpf/libbpf

I used code from here by Brendan Gregg in my example:
https://github.com/iovisor/bcc


https://www.facebook.com/computerphile
https://twitter.com/computer_phile

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: https://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com

Learn more about your ad choices. Visit megaphone.fm/adchoices

Audible free book: http://www.audible.com/computerphile
What's the technical side of the net neutrality debate? We look at how a it works with a fictitious video streaming site. Dr Richard Mortier has the details.

Routers & Youtube Offline: http://youtu.be/AkxqkoxErRk
Network Stack: http://youtu.be/PG9oKZdFb7w
Pink VR Simulator: http://youtu.be/Lm0lA0enPSk
Undecidability Series: http://www.youtube.com/playlist?list=PLzH6n4zXuckpIQPv8hiHpJkSyv0fmXEYr

http://www.facebook.com/computerphile
https://twitter.com/computer_phile

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: http://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels

Learn more about your ad choices. Visit megaphone.fm/adchoices

The 'secure' TETRA communications system has been used by police and security services for decades, it's been revealed that it's seriously flawed. Dr Tim Muller explains.

#tetraburst #security #securitybreach

The team that reverse engineered TETRA and discovered the problems: https://tetraburst.com/

https://www.facebook.com/computerphile
https://twitter.com/computer_phile

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: https://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com

Learn more about your ad choices. Visit megaphone.fm/adchoices

Extra footage about crowd-sourcing event coverage, including how rights and bandwidth provide additional challenges to the idea.

Put this in context by viewing the main film first: https://www.youtube.com/watch?v=5BHw-up-3CA

http://www.facebook.com/computerphile
https://twitter.com/computer_phile

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: http://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels

Learn more about your ad choices. Visit megaphone.fm/adchoices

Outlining the basics of compression methods, including some of the pitfalls! Dr Steve Bagley demonstrates.

https://www.facebook.com/computerphile
https://twitter.com/computer_phile

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: https://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com

Learn more about your ad choices. Visit megaphone.fm/adchoices