HN user

callumprentice

1,826 karma

British bloke and US citizen, in the Los Angeles South Bay via San Francisco, Singapore, Barcelona, Zurich, London and Hong Kong ● Second Life developer at Linden Lab during the day since 2004 ● Enthusiastic WebGL/WebXR hacker in the evenings ● Founder of Industrial Might and Logic Combat Robots ● Eager traveller ● Crossfit and indoor rowing aficionado ● Insanely happy husband and father

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stocks.apple.com 5mo ago

Ingenious 'weightless camera' is changing live sports forever

callumprentice
3pts1
cory.news 6mo ago

What is product development in 2026?

callumprentice
1pts0
callumprentice.github.io 2y ago

Dismayed by recent news, my 12 yo and I made a 3D temperature anomaly viz

callumprentice
2pts4
www.youtube.com 3y ago

Second Life by Linden Lab, the company I've worked for since 2004, turn 20 today [video]

callumprentice
130pts82
news.ycombinator.com 3y ago

Ask HN: How Can I convert free electricity into water

callumprentice
6pts26
techcrunch.com 4y ago

Clubhouse adding High Fidelity’s spatial audio API

callumprentice
1pts0
news.ycombinator.com 5y ago

Ask HN: Are new AI tools improving the accuracy of immensely complex systems?

callumprentice
1pts1
callumprentice.github.io 6y ago

Show HN: My daughter and I made a site to explore the photos from the ISS

callumprentice
528pts120
callumprentice.github.io 6y ago

Show HN: Street View Simple – Explore Street View Data in a Browser

callumprentice
62pts50
medium.com 6y ago

Incarcerated and Facebook

callumprentice
194pts194
www.businessinsider.com 6y ago

SpaceX wants to buy out residents of a small Texas hamlet

callumprentice
8pts1
www.nytimes.com 7y ago

Trump Declares National Emergency to Build Border Wall

callumprentice
11pts3
www.bbc.com 7y ago

Restored WW1 footage is enthralling combination of tech, lip reading and acting

callumprentice
1pts0
i.imgur.com 7y ago

Beautiful timelapse (short) video of SpaceX Falcon launch last night

callumprentice
2pts0
callumprentice.github.io 7y ago

Open source WebGL visualizations of climate temperature anomalies since 1850

callumprentice
3pts0
callumprentice.github.io 7y ago

Show HN: Exploring ways of visualizing historical climate temperature anomalies

callumprentice
1pts0
robert.ocallahan.org 7y ago

Diagnosing a Weak Memory Ordering Bug

callumprentice
87pts4
bitbucket.org 7y ago

Show HN: Dullahan – open source, cross platform, headless C++ SDK that wraps CEF

callumprentice
2pts0
www.reuters.com 8y ago

U.S. court halves $500M verdict in Facebook virtual reality lawsuit

callumprentice
1pts0
voronoi.surge.sh 8y ago

Voronoi Airports: all 54,000+ of them rendered in WebGL

callumprentice
105pts57
callumprentice.github.io 8y ago

Soul of the world: a cube inside the earth whose corners all touch land

callumprentice
1pts0
callumprentice.github.io 8y ago

Soul of the World – viz of a cube inside the earth whose corners all touch land

callumprentice
2pts2
www.youtube.com 8y ago

Heartwarming story of Latvian man building home from scratch using simple tools

callumprentice
2pts0
callumprentice.github.io 8y ago

Using WebGL to plot 9,328 storms worldwide since 1851

callumprentice
5pts0
callumprentice.github.io 8y ago

Storm Tracker WebGL – updated with 2017 storms including Hurricane Irma

callumprentice
2pts2
bitbucket.org 9y ago

Show HN: Headless browser API that renders web content to offscreen bufer

callumprentice
2pts0
bitbucket.org 9y ago

Dullahan – open source, C++ headless browser SDK to render web content to memory

callumprentice
1pts0
callumprentice.github.io 9y ago

Improved WebGL experiment to compare multiple planet sizes including Trappist-1

callumprentice
2pts0
callumprentice.github.io 9y ago

Show HN: WebGL app to compare bodies in TRAPPIST system with those in our own

callumprentice
2pts0
callumprentice.github.io 9y ago

Show HN: Stack Overflow question/answers flow for a day visualized with WebGL

callumprentice
1pts0

Excellent article but I am always torn when I read inspirational articles like this - it makes perfect sense to me and I love the idea of simple, non-nonsense sites that work well, load quickly and don't rely on the latest browsers to function.

Then I start to wonder if that's just because I'm not smart enough to understand React or whatever the fancy technology of the day is.

Feels like I have a hard understanding threshold that cannot be breached - give me a simple editor like Sublime and ask me to make a web page - even with JavaScript - and it's my happy place. Give me VSCode or Zed, Claude/Copilot/ChatGPT plugins everywhere, React tutorials and my brain goes to mush.

As someone who do the whole mileage actual thing for many years (millions of Chase and Amex points) but also a family and a full time job - IE 3 seats vs 1 and can’t leave for a trip at the drop of a hat - I’m always astonished by how worthless my miles seem to be.

I’m not convinced it’s all one big scam but a teensie bit hopeful your solution can help. Looking forward to trying. Thank you.

Understood. This was in Manhattan Beach which is expensive for everything but still, that delta is incredible.

Actually, I noticed one near there yesterday on PCH (forget which station) was $6.89999 for the good stuff.

The Jeff Dean Facts 7 months ago

Agreed! I felt the same way but sitting here with my morning coffee chuckling away. A good start to the day.

Phenomenal collection but like the parent of this message, I have many similar sites bookmarked but without a good bookmark manager (Chrome), it's hard to add meta data like "I really like this page's JSON formatter" etc.

I might have a go at a making meta-utility site when you enter names, descriptions, tags etc. of a utility and it lists relevant sites.

To the parent's point about a good DOT COM, I have one that might be perfect since I seem incapable of finishing the project I purchased it for decades ago.

I tried Zed for a few months but just couldn't get the JavaScript/Python syntax checking and Prettier type reformatting to work reliably. I would poke at it for a few hours, get it working and then mysteriously, a few days later, it'd stop working again.

I switched to VSCode now and whilst that piece of it seems to be much more reliable, I think overall I prefer the "feel" of Zed.

I've bookmarked the article to see if that helps me figure out how to make the settings stick.

I agree with an earlier post that asserted "net worth = assets - liabilities" but I'd like to do better at understanding what that really means.

Some are easy like the size of your bank balance. Others are much harder.

For example, one asset we have is our home and there are many websites out there that tell you how much it's worth but they each vary an awful lot and change dramatically - so much so sometimes that any savings you've made in the same period are eclipsed.

Similarly, the 401k I've been building up for years seems like a decent amount but trying to calculate what it's worth after taxes and therefore how much you'll have to spend each month seems unknowable.

I think the same is true of investment accounts. If we seeded one with $500 and it's now worth $250, it's easy to think your net worth has risen by $250 but it really hasn't when taxes, fees and who knows what else is taken into account.

Buteyko Method 7 months ago

What a lovely story and a great connection to a post. Thanks for sharing.

https://callumprentice.github.io/apps/iss_photo_explorer/ind...

My daughter and I made this 10 years ago for the NASA Space Apps Challenge and I notified a whole bunch of folk at NASA but never heard anything back. Laughably amateurish compared to this magnificent work but it was fun to make.

We actually started work on the next version - a tool that lets you mark begin/end photo frames from those incredible fly-bys and save them off as video but it's maybe not worth it now.

I keep meaning to get back to my suite of equirectangular image functions - viewers, editors, authoring etc. and this reminded me to resurrect the Viewer.

https://equinaut.surge.sh/?eqr=https://raw.githubusercontent...

Not quite right I think because the source image issn't 2x1 aspect ratio.

They can look really nice: both in the real world - https://equinaut.surge.sh/?eqr=https://upload.wikimedia.org/...

or

the virtual world: https://equinaut.surge.sh/?eqr=https://live.staticflickr.com...

I have a real soft spot for Lisbon and Nazare - hoping to live there one day after I retire.

Lots of similarities with the last city I lived in - San Francisco: Big red suspension bridge that spans the gateway to the ocean (same vendor), cable cars running on impossibly hilly streets, cosmopolitan, diverse LGBTQ+ friendly people, amazing food, nearby vineyards, blossoming tech scene....

Crocodiles are scary. I remember reading a short story as a young man where a heart surgeon discovered crocs had over centuries, developed a chronic cardiac condition that left them comparatively sluggish and 'weak. He kept operating on them, fixing the problems until a few survived the surgery. As they recovered and grew bigger and stronger, they developed protuberances on their shoulders and a hard pointy plate at the end of their tail. You can see what's coming - they eventually turned into dragons.. They story was told in retrospective, from the safety of underground caves where what was left of humanity lived now..

Always crossed my mind when I see one :)

Nice. I felt the same way - read that book from cover to cover many times.

I could never afford a BBC Micro when that came out and certainly not the Archimedes but I always admired from afar.