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Related Concept Videos

The Scope of Physics01:17

The Scope of Physics

Physics is concerned with the interactions of energy, matter, space, and time, in order to discover the underlying mechanisms that underpin all phenomena. The word "physics" comes from the Greek word "phúsis", which means nature. Physics seeks to comprehend the natural world around us at its most fundamental level. It emphasizes the use of quantitative laws to do this, which could be valuable in other fields that want to push the performance boundaries of present technologies.
Physics knowledge...
An Introduction to Mechanics01:28

An Introduction to Mechanics

Humans have been making ships, shelters, pyramids, weapons, agricultural equipment, and many more items without recording the process or theory behind them for centuries. It would be challenging to document the evolution of mechanics from its origin to the present.
According to records, the history of mechanics starts with Aristotle (384–322 BC). He related mechanics to physical theory, aiming for a universal synthesis.
Newton defined mechanics as the branch of physical science that studies the...
The Wave Nature of Light02:12

The Wave Nature of Light

The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion.
Physical Pendulum01:06

Physical Pendulum

When a rigid body is hanging freely from a fixed pivot point and is displaced, it oscillates similar to a simple pendulum and is known as a physical pendulum. The period and angular frequency of a physical pendulum are obtained by using the small-angle approximation and drawing parallels with a spring-mass system. The small-angle approximation (sinθ=θ) is valid up to about 14°.
When dealing with complicated systems, the mass moment of inertia is an important parameter, as it describes the mass...
Models, Theories, and Laws01:16

Models, Theories, and Laws

Scientists frequently use models to help them comprehend a specific collection of phenomena. In physics, a model is a condensed version of a physical system that is too complex to study thoroughly. One such example is the light wave model; unlike water waves, light waves are typically invisible to us. Nonetheless, it is helpful to think of light as being composed of waves, since investigations show that light behaves like water waves. Since it is impossible to visually see what is genuinely...
Model Approaches for Pharmacokinetic Data: Physiological Models01:15

Model Approaches for Pharmacokinetic Data: Physiological Models

Physiological models in pharmacokinetics are instrumental in understanding the distribution and elimination of drugs within the body. These models describe the drug concentration within target organs, influenced by factors such as drug uptake, tissue volume, and blood flow. Drug uptake is governed by the partition coefficient, which signifies the drug concentration ratio in tissue to that in the blood. The blood flow rate to a specific tissue is expressed as Qt, and the rate of change in tissue...

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Related Experiment Video

Updated: May 23, 2026

Erythrocyte Sedimentation Rate: A Physics-Driven Characterization in a Medical Context
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Erythrocyte Sedimentation Rate: A Physics-Driven Characterization in a Medical Context

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Physics and medicine: a historical perspective.

Stephen F Keevil1

  • 1Department of Medical Physics, Guy's and St Thomas' NHS Foundation Trust, London, UK. stephen.keevil@kcl.ac.uk

Lancet (London, England)
|April 21, 2012
PubMed
Summary

The history of medical physics spans centuries, evolving from ancient physical agents to modern radiation-based diagnostics and treatments. Physics continues to drive medical innovation, particularly in personalized medicine.

Area of Science:

  • Medical Physics
  • History of Medicine
  • Biophysics

Background:

  • The practice of medical physics in hospitals is relatively recent, emerging about 100 years ago.
  • The relationship between physics and medicine, however, has a much longer and richer history.

Observation:

  • Early medical practices utilized physical agents like heat and light for diagnosis and treatment.
  • Renaissance polymaths applied physical principles to understand human physiology.
  • The scientific revolution spurred a mechanistic view of physiology and the study of life through physics.

Findings:

  • Early investigations laid the groundwork for specialties such as electrophysiology, biomechanics, and ophthalmology.
  • The 19th century saw rapid advancements in physics-based medical technology.

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Last Updated: May 23, 2026

Erythrocyte Sedimentation Rate: A Physics-Driven Characterization in a Medical Context
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Published on: March 24, 2023

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  • Discoveries in radiation and radioactivity at the end of the 19th century revolutionized medical diagnosis and treatment, establishing modern medical physics.

    • Implications:

    • Advancements in medical imaging have profoundly transformed healthcare.
    • Physics-based techniques are at the forefront of the emerging era of post-genomic personalized medicine.
    • Current medical innovations often stem from foundational research in basic physics.