Hi, I'm Iljitsch van Beijnum. This page has all posts about all subjects.
On potaroo.net Geoff Huston wishes Happy 50th Birthday Ethernet.
Back in 2011 I wrote an Ars Technica feature about the history of Ethernet: Speed matters: How Ethernet went from 3Mbps to 100Gbps… and beyond.
Interesting to compare our different takes!
And of course Ethernet is still going strong. My oldest computers have the original 10 Mbps Ethernet adapters that I got almost 30 years ago, while my newest computer has 10 gigabit Ethernet, 1000 x faster.
Permalink - posted 2023-06-29
Image link - posted 2023-05-13 in
I fell down a rabbit hole a while ago trying to come up with the definitive answer to the often-asked question "how can old movies be in HD/4K", which immediately leads to "how does film and digital resolution compare".
The answer to the first question is of course that film as a lot more resolution than standard definition TV, so just scanning the movies at a higher resolution will give you a sharper image than that old DVD or (shudder) VHS tape.
The problem with reasoning about film grain vs pixels or eyeballing images is that it's very imprecise. But we actually do have a tool that lets us compare digital vs film: the optical transfer function.
Integrated below a little tool with a slider to see for yourself where the tradeoffs are.
Read the article - posted 2023-03-29
Image link - posted 2023-02-05 in
For the first time in a long while the Nieuwe Veenmolen, the local neighborhood windmill from 1654, is turning. Back in the day, it pumped away water to keep the area dry.
Permalink - posted 2023-01-30 - 🇳🇱 Nederlandse versie