Why Janet Jackson made laptops crash

Gen Xers and boomers will remember the musical powerhouse that was Janet Jackson in the late 1980s. But now her music has been found to have a new power — it can crash laptops. 

This week Microsoft chief software engineer Raymond Chen shared the story of what happens when older Windows XP laptops play the music video for Jackson’s “Rhythm Nation.”

Specifically, Chen recalls a colleague’s tale from Windows XP product support. An unnamed major computer manufacturer discovered that playing the video would crash certain models of laptops. 

Greetings, tech nerd!

Are you into gadgets? And apps? And other cool tech stuff? Then this weekly newsletter is for you.

Even weirder, playing the music video on one laptop resulted in a crash of another laptop nearby.

So why did the song cause computers to crash?

The song contained a resonant frequency that affected the laptop’s hard drive. Chen recounted:

“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.”

In other words, playing the song produced specific sound waves that vibrated at the same frequency as those from the hard drive. This caused the laptop to crash. This is known as vibration resonance.

Fortunately, the manufacturer solved the problem by adding a custom filter in the audio pipeline that detected and removed the offending frequencies during audio playback.

Not an isolated incident

Even more interesting, there are other cases of vibration resonance causing local effects.

Another Microsoft dev revealed that playing the game 101 Monochrome Mazes would “reliably crash their machine” because the speaker trace and reset trace were too close to each other. 

The phenomenon not only affects computers. In 1940 the Tacoma Narrows Suspension Bridge collapsed in response to wind gusts, creating a vibrational resonance that matched the bridge’s natural frequency. It caused the bridge to swing, twist, and eventually collapse. 

Soldiers marching in unison across a bridge can also create vibrational resonance. 

In 2011, the TechnoMart shopping mall in Seoul was evacuated in response to 10 minutes of swaying. Mall officials originally suspected a localized earthquake. 

However, the culprit was actually a group of middle-aged people doing a  Tae Bo workout to the song “The Power” by Snap. 

The scenario was successfully replicated using 17 middle-aged participants who exercised to the song for five minutes. 

Enthusiastic dancing in unison at gigs can also cause vibrational resonance.

It all brings another meaning to the term good vibrations



Source link

Latest

US Democrats rally against Saudi Arabia, UAE after oil cuts

Riyadh defends decision to curb oil output, saying move...

European leaders giddy with new forum — as long as they overlook lingering tension

Press play to listen to this article Leaders had a...

Las Vegas Strip fatal stabbing leaves multiple people injured

LAS VEGAS – A suspect was in custody Thursday...

Follow the 9News live breaking news blog throughout the day

By Raffaella Ciccarelli 19:50Much of New South Wales is...

Everything you need to know about the Draconid meteor shower

Stargazers get ready, as tone of the most anticipated annual events is set to begin. The Draconid meteor shower is visible around October time every...

Google launches Pixel 7 phones and a new smartwatch to tempt you away from Apple

Google has unveiled two new Pixel phones alongside a smartwatch that builds on its acquisition of Fitbit last year. The Pixel 7 and Pixel 7...

Former Uber security chief convicted for concealing a felony

Responding to the judgement, Dr Ilia Kolochenko, founder of ImmuniWeb, and a member of Europol Data Protection Experts Network, wrote, "The Uber case is...