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Why don't they just..?
It seems every time I come across a story about the Mars Curiosity rover there will be many people commenting on the technology used start...
John Graham-Cumming
The SidePulse Pro is a fun project that puts some LEDs in an "SD card format" to go into the side of a MacBook Pro. My MacBook Pro is very old and so it doesn't have an SD card slot, but my Mac Studio does. And since I like to live dangerously (and thought it would look cool), I stuck my newly received SidePulse Pro…
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Visit blog.jgc.org → RSS feedOn Hacker News Jun 2010 – Jan 2026
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If you care about security you might want to move the iPhone Camera app
There's a quirk in the iPhone Camera app that can drive a security conscious iPhone owner crazy: if you touch your finger on the Camera app ...
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Is a movie prop the ultimate laptop bag?
A while back I attended a Cloudflare board meeting and carried my laptop in a brown paper bag from a grocery store. This elicited a few com...
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Making a Ponyo boat
If you've seen the film Ponyo (or if you grew up in Asia) you may have seen a sort of toy boat powered by a very simple steam engine. This...
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Rabbit hole: stumbling across two Portuguese punched cards
Look, here's the thing, I don't like mysteries that involve technology. I think I hate them because I know that some other human created the...
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In praise of... text files and protocols
The other night I had to debug a problem where CMYK colors specified in an OmniGraffle file weren't making it into an exported PDF (or at...
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The 10:10 Code
Four years ago I wrote about a way to encode the latitude and longitude of any point on the Earth's surface to 10m of accuracy with a 10 ch...
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1,000 (bad) ideas
Tidying up my messy corner in the basement I unearthed one of my older "ideas books" in which I write down the random ideas that flit throug...
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How I ended up with so much Hacker News karma
On the Hacker News leaderboard I'm currently in position #12 with 32,360 points. I was curious to find out how I ended up in that position...
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How to sleep on a long haul flight
To the annoyance of people around me I have no trouble sleeping on long haul flights. And I don't take any fancy medication to do so. Havi...
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