How an Atomic Clock Really Works: Inside the HP 5061A Cesium Clock

Why HN readers recommended it

HN calls it one of the best explanations of how atomic clocks actually work.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel

CuriousMarc

Topic

atomic clocks

Format

explainer

Level

intermediate

HN recommenders in dataset

4

HN mentions in dataset

4

Recommendation years in dataset

2020–2026

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

• CuriousMarc has an excellent episode on an atomic clock. [VIDEO] I like to pretend I can fix computers, this guy can actually fix computers, which is probably why I find his show so fascinating.

• If you want to see how an actual application of this works, I've yet to see a description better than in CuriousMarc's HP 5061A series: [VIDEO]

• CuriousMarc made a video last week where he uses a vintage HP 5061A atomic clock and explains how it works. It's interesting to see that atomic clocks aren't just some giant laboratory thing, but a product you could buy, even in the 1960s. [VIDEO]