• Email Us: [email protected]
  • Contact Us: +1 718 874 1545
  • Skip to main content
  • Skip to primary sidebar

Medical Market Report

  • Home
  • All Reports
  • About Us
  • Contact Us

Energy-Stealing Zel’dovich Effect Confirmed Using Electromagnetic Fields 50 Years After Being Proposed

September 27, 2024 by Deborah Bloomfield

A 50-year-old idea about electromagnetic waves known as the Zel’dovich effect has been tested by physicists in the lab, and proven to be correct. 

Advertisement

The idea behind the Zel’dovich effect came from a strange place. In 1969, British physicist and mathematician Roger Penrose suggested that energy could be extracted from black holes by lowering an object into the ergosphere (the region just outside of the event horizon) and allowing it to accelerate the object, stealing some of the black hole’s energy. The idea, known as the Penrose process, requires negative energy to be acquired by the object in order for it to be recovered from the black hole – otherwise, all you’d be doing is feeding the black hole.

We don’t have any conveniently close black holes to play with (probably thankfully), but a few years later, Belarusian physicist Yakov Zel’dovich came up with a far more practical way to test the concept of stealing extra energy from a rotating system. 

The idea has links to the doppler effect, which can make light appear red or blue shifted depending on how the emitting object is moving relative to us, as well as the rotational doppler effect.



“The linear version of the doppler effect is familiar to most people as the phenomenon that occurs as the pitch of an ambulance siren appears to rise as it approaches the listener but drops as it heads away. It appears to rise because the sound waves are reaching the listener more frequently as the ambulance nears, then less frequently as it passes,” study author Dr Marion Cromb, now Research Fellow at the University of Southampton, explained in a statement concerning a previous study.

Advertisement

“The rotational doppler effect is similar, but the effect is confined to a circular space. The twisted sound waves change their pitch when measured from the point of view of the rotating surface. If the surface rotates fast enough then the sound frequency can do something very strange – it can go from a positive frequency to a negative one, and in doing so steal some energy from the rotation of the surface.”

To test the idea, the team previously bounced sound waves off a spinning disc, and listened for a shift in frequency indicating that energy had been gained from the disc’s rotation. Now, the team has conducted the experiment using electromagnetic waves.

“The Zel’dovich effect works on the principle that waves with angular momentum, that would usually be absorbed by an object, actually become amplified by that object instead, if it is rotating at a fast enough angular velocity. In this case, the object is an aluminium cylinder and it must rotate faster than the frequency of the incoming radiation,” Cromb said in a statement on the new study.

“Colleagues and I successfully tested this theory in sound waves a few years ago, but until this most recent experiment it hadn’t been proven with electromagnetic waves. Using relatively simple equipment – a resonant circuit interacting with a spinning metal cylinder – and by creating the specific conditions required, we have now been able to do this.”

Advertisement

To conduct the experiment, the team needed to rotate the aluminum cylinder so fast that, from its perspective, it sees a twisted wave shifted in angular rotation with a “negative frequency”. 

“The condition for amplification is from the rotating perspective of the object,” Cromb explained. “Twisting electromagnetic fields hitting it have become rotationally Doppler shifted, so much (or so low) that they’ve gone through zero and into a ‘negative’ angular frequency. Negative frequency then means negative absorption, and this means amplification.”

The team hopes to investigate the phenomenon at the quantum level.

“These findings open the way to the merging of ideas from two previously disconnected fields,” the team concludes in their paper. “In particular, a suggestive prospect is the realisation of Zel’dovich electromagnetic amplification from a rotating body in the quantum regime, i.e., the generation of photons out of the quantum vacuum stimulated by a mechanical rotation.”

Advertisement

The study is published in the journal Nature Communications.

Deborah Bloomfield
Deborah Bloomfield

Related posts:

  1. Cricket-Manchester test likely to be postponed after India COVID-19 case
  2. EU to attend U.S. trade meeting put in doubt by French anger
  3. Soccer-West Ham win again, Leicester and Napoli falter
  4. Was Jesus A Hallucinogenic Mushroom? One Scholar Certainly Thought So

Source Link: Energy-Stealing Zel’dovich Effect Confirmed Using Electromagnetic Fields 50 Years After Being Proposed

Filed Under: News

Primary Sidebar

  • Hippos Hung Around In Europe 80,000 Years Later Than We Thought
  • Officially Gone: Slender-Billed Curlew, Once-Widespread Migratory Bird, Declared Extinct By IUCN
  • Watch: Rare Footage Captures Freaky Faceless Cusk Eels Lurking On The Deep-Sea Floor
  • Watch This Funky Sea Pig Dancing Its Way Through The Deep Sea, Over 2,300 Meters Below The Surface
  • NASA Lets YouTuber Steve Mould Test His “Weird Chain Theory” In Space
  • The Oldest Stalagmite Ever Dated Was Found In Oklahoma Rocks, Dating Back 289 Million Years
  • 2024’s Great American Eclipse Made Some Birds Behave In Surprising Ways, But Not All Were Fooled
  • “Carter Catastrophe”: The Math Equation That Predicts The End Of Humanity
  • Why Is There No Nobel Prize For Mathematics?
  • These Are The Only Animals Known To Incubate Eggs In Their Stomachs And Give “Birth” Out Their Mouths
  • Constipated? This One Fruit Could Help, Says First-Ever Evidence-Led Diet Guidance
  • NGC 2775: This Galaxy Breaks The Rules Of “Galactic Evolution” And Baffles Astronomers
  • Meet The “Four-Eyed” Hirola, The World’s Most Endangered Antelope With Fewer Than 500 Left
  • The Bizarre 1997 Experiment That Made A Frog Levitate
  • There’s A Very Good Reason Why October 1582 On Your Phone Is Missing 10 Days
  • Skynet-1A: Military Spacecraft Launched 56 Years Ago Has Been Moved By Persons Unknown
  • There’s A Simple Solution To Helping Avoid Erectile Dysfunction (But You’re Not Going To Like It)
  • Interstellar Object 3I/ATLAS May Be 10 Billion Years Old, This Rare Spider Is Half-Female, Half-Male Split Down The Middle, And Much More This Week
  • Why Do Trains Not Have Seatbelts? It’s Probably Not What You Think
  • World’s Driest Hot Desert Just Burst Into A Rare And Fleeting Desert Bloom
  • Business
  • Health
  • News
  • Science
  • Technology
  • +1 718 874 1545
  • +91 78878 22626
  • [email protected]
Office Address
Prudour Pvt. Ltd. 420 Lexington Avenue Suite 300 New York City, NY 10170.

Powered by Prudour Network

Copyrights © 2025 · Medical Market Report. All Rights Reserved.

Go to mobile version