Thursday, September 22, 2022

Janet Jackson Had the Power to Crash Laptop Computers

A colleague of mine shared a story from Windows XP product support. A major computer manufacturer discovered that playing the music video for Janet Jackson’s “Rhythm Nation” would crash certain models of laptops. I would not have wanted to be in the laboratory that they must have set up to investigate this problem. Not an artistic judgement.

One discovery during the investigation is that playing the music video also crashed some of their competitors’ laptops.

And then they discovered something extremely weird: Playing the music video on one laptop caused a laptop sitting nearby to crash, even though that other laptop wasn’t playing the video!

What’s going on?

It turns out that the song contained one of the natural resonant frequencies for the model of 5400 rpm laptop hard drives that they and other manufacturers used.

by Raymond Chen, Microsoft |  Read more:
Image: Janet Jackson 'Rhythm Nation' (A&M Records) via
***
[ed. Speaking of resonant frequencies, the article also references the famous Tacoma Narrows Bridge collapse in November, 1940: "Sleek and slender, it was the third longest suspension bridge in the world at the time, covering 5,959 feet. (...) 

Engineers of the time believed that the design, even though it exceeded ratios of length, depth and width that had previously been standard, was completely safe. Following the collapse, it was revealed that the engineers had not properly considered the aerodynamic forces that were in play at the location during a period of strong winds. (...)

On November 7, high winds buffeted the area and the bridge swayed considerably. The first failure came at about 11 a.m., when concrete dropped from the road surface. Just minutes later, a 600-foot section of the bridge broke free. By this time, the bridge was being tossed back and forth wildly. At one time, the elevation of the sidewalk on one side of the bridge was 28 feet above that of the sidewalk on the other side. Even though the bridge towers were made of strong structural carbon steel, the bridge proved no match for the violent movement, and collapsed. (History.com).]