The Monitor Daily

Saturday, January 23, 2021
Log in

As a participant in the Amazon Services LLC Associates Program, this site may earn from qualifying purchases. We may also earn commissions on purchases from other retail websites.

  • Home
  • Politics & National News
  • Business News
  • Tech & Science
  • Health & Lifestyle
  • About us
    • Contact US
    • Privacy Policy GDPR
    • Terms of Use
  • Latest News
    • Stormy Planet
    • US Surgeon Performs Face Transplant
    • 2017 MTV VMAs Nominations Are In And Voting Is Now Open
    • Bright House: Free McAfee AntiVirus and Adult Controls
    • Antarctic Yeti Crab Gets Formal Scientific Name
    • Spiders Take Over Australian Town
    • Interesting Facts About the Apollo 11 Mission
    • Social Smoking or The New Landmark of Elegance Among Young Women
    • Rare Weasel Returns To Washington State

Pages

  • About The Monitor Daily
  • Contact US
  • Our Team
  • Privacy Policy GDPR
  • Terms of Use

Recent Posts

  • Precisely what is Administration Buyback? Feb 12, 2020
  • Precisely what is Administration Buyback? Feb 12, 2020
  • Where by do Registered requests get kept Dec 1, 2019
  • Find a Star of the event on the Submit Purchase New bride List May 19, 2019
  • Locate Really enjoy On the internet Apr 30, 2019
  • Get Love On the net Apr 12, 2019
  • NYC Man Snaps Photo of the Victim After Sucker-Punching Him in Broad Daylight Jun 29, 2018

Invisibility Scientific Limitations

By Leave a Comment

invisible man invisibility

Researchers from Texas University explored the capacity of metamaterials to offer full invisibility.

A new study published by scientists from the University of Texas set up a list of arguments towards the impossibility of human invisibility.

Invisibility cloaking devices are real. However, they are not perfect. They remain undetectable to certain electromagnetic waves, such as light, infrared or microwaves.

The cloak can only be used to hide something in a different wavelength. However, the researchers say that the mission becomes more challenging when the object has a large size.

The author of the study created a framework of the boundaries related to invisibility in different sizes and compositions.

The study aims to aid engineers to calculate the likely performance of their invisibility devices.

“The question is, can we make a passive cloak that makes human-scale objects invisible? It turns out that there are stringent constraints in coating an object with a passive material and making it look as if the object were not there, for an arbitrary incoming wave and observation point,” said Andrea Alu, the leading author of the study.

The cloaks are made from metamaterials with a property that enables the control over the incoming waves. The research focuses on materials that do not need an external power source. The key conditions for creating an invisible cloth are estimations on the bandwidth and size the limitations of the cloaking.

The author of the study explains that the discovery is important in the field of communication antennas, military radars, and biomedical devices. The performance of a passive cloak is determined by the size of the object and the length of the incoming wave.

The researchers mention the fact that it would be impossible to hide large objects, like a human body or a tank. However, smaller objects like a radio-wave antenna can be easily obscured from the view.

The current study shows the limits of metamaterials and their relation with their respective wavelengths. Scientists do not see in the results of research a fatalistic limit of technical capabilities. They said they would try to find new ways to improve the performance of the materials.

Some of the new techniques explore nonlinear approaches to cloaking technologies. In this new field, the invisibility limits do not apply.

Regarding camouflage, the scientists will also study phase delays methods, camouflage techniques, and optical tricks. These new approaches will give the impression of transparency, and they will avoid reducing the light scattering.

Another option would be to use metamaterials with an external energy source, which would probably show more performance in achieving transparency.

The ultimate limit on invisibility is Einstein’s theory of relativity. However, nonlinear metamaterials could help scientists invent the invisibility cloak.

Image Source: DeviantArt

Share this:

  • Tweet
  • Share on Tumblr

Filed Under: Tech & Science Tagged With: camouflage, invisibility, Invisibility Scientific Limitations, metamaterials, object size, passive cloak, transparency, wavelength

Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 34 other subscribers

Operation Paperclip

Remembering Georg von Tiesenhausen, Last Member of Von Braun’s Rocket Team

By Leave a Comment

giant ground sloths on white background

It Seems that Giant Sloths Once Roamed Earth, and Humans Used to Hunt Them? (Study)

By Leave a Comment

sn 2001ig supernova explosion and images of its stars

A Star Escaped a Supernova Explosion, and NASA Snapped its Picture

By Leave a Comment

ngc 6420 galaxy resembling a giant butterfly

Hubble Spots Giant Butterfly Formed by a Black Hole and Stellar Winds (Study)

By Leave a Comment

infrared image of a dog

Space Technology Could Help Protect Earth’s Endangered Species

By Leave a Comment

snake slithering on a beige background

Kirigami Skin Is Helping a Soft Robot Slither Like a Snake (Study)

By Leave a Comment

woolly mammoth

Ice Age Tracks Reveal How Young Mammoths Cared for Adult Ones (Study)

By Leave a Comment

High Priestess tomb.

Archaeologists Discovered 4400-Years-Old High Priestess Tomb Near Cairo

By Leave a Comment

dwarf galaxies

Dwarf Galaxies Challenge the Entire Dark Matter Cosmology (Study)

By Leave a Comment

NASA Scientists and Food Experiments

NASA Scientists to Test if Astronauts Could Eat Their Own Poo

By Leave a Comment

KFC Smoky Wings Box Can Turn into Awesome Drone

By Leave a Comment

Tesla Model S

Tesla Model S Involved in Autopilot Malfunction Accident

By Leave a Comment

Duke Nukem.

John Cena Cold Feature in Duke Nukem Movie

By Leave a Comment

Battlefield One

Battlefield One Apocalypse DLC to Land in February

By Leave a Comment

Related Articles

  • Operation Paperclip

    Remembering Georg von Tiesenhausen, Last Member of Von Braun’s Rocket Team

  • giant ground sloths on white background

    It Seems that Giant Sloths Once Roamed Earth, and Humans Used to Hunt Them? (Study)

  • sn 2001ig supernova explosion and images of its stars

    A Star Escaped a Supernova Explosion, and NASA Snapped its Picture

  • ngc 6420 galaxy resembling a giant butterfly

    Hubble Spots Giant Butterfly Formed by a Black Hole and Stellar Winds (Study)

  • infrared image of a dog

    Space Technology Could Help Protect Earth’s Endangered Species

  • snake slithering on a beige background

    Kirigami Skin Is Helping a Soft Robot Slither Like a Snake (Study)

  • woolly mammoth

    Ice Age Tracks Reveal How Young Mammoths Cared for Adult Ones (Study)

  • High Priestess tomb.

    Archaeologists Discovered 4400-Years-Old High Priestess Tomb Near Cairo

  • dwarf galaxies

    Dwarf Galaxies Challenge the Entire Dark Matter Cosmology (Study)

  • NASA Scientists and Food Experiments

    NASA Scientists to Test if Astronauts Could Eat Their Own Poo

Categories

  • Business News
  • Entertainment
  • Featured
  • Health & Lifestyle
  • Nature
  • Politics & National
  • Sports
  • Tech & Science
  • US
  • World

Copyright © 2021 TheMonitorDaily.com

About · Privacy Policy · Terms of Use · Sitemap · Contact

This website uses cookies to ensure you get the best experience on our website. Learn more.