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Related Concept Videos

X-ray Crystallography02:18

X-ray Crystallography

The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
Determination of Crystal Structures01:29

Determination of Crystal Structures

In the late 1800s, the revelation that light extended beyond visible wavelengths led to the discovery of X-rays by Wilhelm Roentgen. Recognized as high-energy electromagnetic radiation with short wavelengths, X-rays prompted exploration into their interaction with crystals. Max von Laue proposed in 1912 that the periodic arrangement of atoms, ions, or molecules in crystals would cause them to diffract X-rays, a hypothesis confirmed through experiments with copper sulfate and zinc sulfide...
Biot-Savart Law01:19

Biot-Savart Law

The Biot-Savart law gives the magnitude and direction of the magnetic field produced by a current. This empirical law was named in honor of two scientists, Jean-Baptiste Biot and Félix Savart, who investigated the interaction between a straight, current-carrying wire and a permanent magnet.
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The DNA Helix

Deoxyribonucleic acid, or DNA, is the genetic material responsible for passing traits from generation to generation in all organisms and most viruses. DNA is composed of two strands of nucleotides that wind around each other to form a spring-like structure called a double helix. However, the double helix is not perfectly symmetrical. Instead, there are regularly occurring grooves in the structure. The major groove occurs where the sugar-phosphate backbones are relatively far apart. This space...
The DNA Helix01:16

The DNA Helix

Overview
Biot-Savart Law: Problem-Solving00:59

Biot-Savart Law: Problem-Solving

The magnitude and direction of a magnetic field created by a steady current can be calculated using the Biot-Savart law.
Consider a mobile phone battery bank as a source of steady current, which flows through the wire connected between the two. What is the magnitude of the magnetic field created by this current at a field point P?
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Related Experiment Video

Updated: May 15, 2026

Writing Bragg Gratings in Multicore Fibers
08:48

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

Sir Lawrence Bragg.

M F Perutz1

  • 1MRC Laboratory of Molecular Biology, Cambridge, United Kingdom.

Acta Crystallographica. Section A, Foundations of Crystallography
|December 20, 2012
PubMed
Summary
This summary is machine-generated.

This obituary honors Sir Lawrence Bragg, a pioneering physicist. It highlights his significant contributions to crystallography and scientific leadership.

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Area of Science:

  • Physics
  • Crystallography
  • Structural Biology

Background:

  • Sir Lawrence Bragg was a Nobel laureate renowned for his work in X-ray crystallography.
  • His career spanned significant advancements in understanding crystal structures and their applications.
  • He played a crucial role in scientific research and education throughout his life.

Purpose of the Study:

  • To commemorate the life and scientific achievements of Sir Lawrence Bragg.
  • To provide an overview of his seminal contributions to physics and crystallography.
  • To reflect on his legacy as a scientific leader and educator.

Main Methods:

  • The abstract is an extract from a biographical obituary.
  • It draws upon the author's personal knowledge and published works.
  • It synthesizes information on Bragg's scientific impact and career trajectory.

Main Results:

  • Sir Lawrence Bragg's work fundamentally advanced the field of X-ray crystallography.
  • He developed the Bragg's Law, a key equation for determining the diffraction of X-rays by crystals.
  • His leadership influenced scientific research and policy.

Conclusions:

  • Sir Lawrence Bragg left an indelible mark on modern science, particularly in crystallography.
  • His legacy continues to inspire advancements in physics and related fields.
  • The obituary serves as a testament to his profound scientific and intellectual contributions.