Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Hyperbolic and Inverse Hyperbolic Functions: Problem Solving01:30

Hyperbolic and Inverse Hyperbolic Functions: Problem Solving

109
An arched gate can be effectively modeled using a hyperbolic cosine profile because this type of function is smooth and symmetric about the vertical axis. When the arch is centered at the origin, its maximum height occurs at the center point. This symmetry ensures that any height below the crown of the arch is reached at two horizontal positions that are equal in distance from the centerline but lie on opposite sides.To determine where the gate reaches a height of five meters, the height of the...
109
Hyperbolic Functions01:25

Hyperbolic Functions

57
A flexible cable suspended between two points at the same height naturally forms a curve known as a catenary. This shape results from the balance between the cable’s weight and the tension acting along its length, representing a state of mechanical equilibrium. Unlike simpler approximations, the true shape of a hanging cable is described using hyperbolic functions.Hyperbolic functions are closely related to exponential functions and are named for their connection to the geometry of the...
57
Inverse Hyperbolic Functions and Their Derivatives01:25

Inverse Hyperbolic Functions and Their Derivatives

58
The shape of a suspension bridge cable hanging under its own weight is described by a catenary curve, which is modeled using the hyperbolic cosine function. This mathematical model accurately captures the balance between gravity and tension acting along the cable. When a particular vertical position on the cable is known, the corresponding horizontal position can be determined using the inverse hyperbolic cosine function, allowing for a detailed analysis of the cable's geometry.Inverse...
58
Polytene Chromosomes02:04

Polytene Chromosomes

10.9K
Polytene chromosomes are giant interphase chromosomes with several DNA strands placed side by side. They were discovered in the year 1881 by Balbiani in salivary glands, intestine, muscles, malpighian tubules, and hypoderm of larvae Chironomus plumosus. Hence, these are also called "Salivary gland chromosomes." These are found in insects of the order Diptera and Collembola; in certain organs of mammals; and synergids, antipodes of flowering plants. Polytene chromosomes are also...
10.9K
Lampbrush Chromosomes01:51

Lampbrush Chromosomes

8.6K
In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...
8.6K
Light Acquisition02:16

Light Acquisition

9.4K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
9.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Experimental observation of a radio frequency plasmonic gradient resonance in water.

Scientific reports·2025
Same author

Electromagnetic signal propagation through lossy media via surface electromagnetic waves.

Nanophotonics (Berlin, Germany)·2024
Same author

Roadmap on Label-Free Super-Resolution Imaging.

Laser & photonics reviews·2024
Same author

Observation of plasmon-phonons in a metamaterial superconductor using inelastic neutron scattering.

Physical review. B·2024
Same author

Superlensing enables radio communication and imaging underwater.

Scientific reports·2023
Same author

Broadband Transformation Optics Devices.

Materials (Basel, Switzerland)·2017

Related Experiment Video

Updated: Jan 25, 2026

Fabricating Metamaterials Using the Fiber Drawing Method
11:57

Fabricating Metamaterials Using the Fiber Drawing Method

Published on: October 18, 2012

14.3K

Giant Unruh effect in hyperbolic metamaterial waveguides.

Igor I Smolyaninov

    Optics Letters
    |May 2, 2019
    PubMed
    Summary

    Researchers show that photons in metamaterial waveguides can simulate extreme accelerations, potentially enabling experimental observation of the Unruh effect. This breakthrough could unlock new studies into quantum entanglement under intense acceleration.

    Area of Science:

    • Quantum physics
    • Condensed matter physics
    • Metamaterials

    Background:

    • The Unruh effect predicts thermal radiation for accelerating observers in vacuum.
    • Experimental verification is challenging due to extremely low temperatures at achievable accelerations (e.g., 9.8 m/s² yields 4×10⁻²⁰ K).

    Purpose of the Study:

    • To explore novel systems for simulating and experimentally probing the Unruh effect.
    • To investigate the behavior of quantum systems under extreme acceleration.

    Main Methods:

    • Utilizing metamaterial waveguides to create conditions where photons behave as massive quasi-particles.
    • Achieving effective accelerations up to 10²⁴ g within these engineered environments.

    Main Results:

    More Related Videos

    Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing
    09:39

    Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

    Published on: June 28, 2024

    1.5K
    Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
    13:44

    Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

    Published on: December 27, 2012

    15.9K

    Related Experiment Videos

    Last Updated: Jan 25, 2026

    Fabricating Metamaterials Using the Fiber Drawing Method
    11:57

    Fabricating Metamaterials Using the Fiber Drawing Method

    Published on: October 18, 2012

    14.3K
    Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing
    09:39

    Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

    Published on: June 28, 2024

    1.5K
    Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
    13:44

    Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

    Published on: December 27, 2012

    15.9K
  • Demonstrated that photons in metamaterial waveguides can undergo accelerations vastly exceeding those typically considered for Unruh effect experiments.
  • These simulated accelerations are approximately 12 orders of magnitude greater than the surface acceleration of a stellar black hole.

    • Conclusions:

    • Metamaterial waveguides offer a promising platform for experimentally studying the Unruh effect.
    • The high accelerations achieved may also facilitate research into the loss of quantum entanglement in strongly accelerated frames.