The Absurdity of Detecting Gravitational Waves

Why HN readers recommended it

HN recommends it as a good layperson explanation of how LIGO's detection works and why it is so hard.

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

Video & recommendation details

Creator / channel

Veritasium

Topic

gravitational wave detection

Format

explainer

Level

general

HN recommenders in dataset

3

HN mentions in dataset

6

Recommendation years in dataset

2017–2019

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.

• There are many good videos on youtube that do a good job explaining what gravitational waves are and how we detect them. Many of these were made in response to the first detection, and they do a pretty good job explaining it in laymans terms. …

• Except imagine you're embedded on the string itself and cannot actually sense the string "moving through space". The way you have to measure it is by sensing tiny changes in distance between the left and right side of the string as it wiggles around. The …

• Here is a great video with explanations: [VIDEO] Short answer - they use lots of techniques - its super hard.