Application of physics in other fields

Описание: Introduction
Science is a union of various scientific fields, each with unique characteristics and histories.
They are interdependent and benefit from each other's advancements.
Understanding the contributions of each discipline is crucial for their collaborative development and societal and environmental impact.
Physics is a crucial field of science that significantly influences scientific advancements and is present in various modern sciences through various concepts.
Physics and chemistry
Physics and chemistry are closely related, with fundamental laws governing matter's behavior affecting both fields.
Atomic and subatomic particle physics provide the theory and rules about atoms in chemistry.
Both fields study the interaction of large numbers of particles, which are complex beyond the capabilities of computers and the human mind.
The physics of atoms and subatomic particles is crucial for understanding how individual atoms form molecules through covalent bonds.
The physics of heat energy bridges the macroscopic properties of a substance with the individual properties of its constituent molecules and atoms.
Spectroscopy is a fundamental tool in physics and chemistry, providing insights into atomic structure, molecular structure, X-ray diffractions, radioactivity, periodic properties, valency, chemical bonds, and solid crystal structure.
Physics and biology
Understanding physics is crucial for comprehending life's mechanics, including human motion, metabolism, blood flow dynamics, and eye functions.
Newtonian mechanics, a combination of physics and biology, explains how animals and their body parts move.
It states that a body is in stable equilibrium under gravity if its center of mass is directly over its base of support.
A person falls when their center of gravity is displaced beyond their feet.
The wider the base and closer the center of gravity, the more stable it is. Newtonian mechanics also explains how limbs are used for various tasks.
1. Physics of fluid flow and biology
Fluid flow physics, including viscosity, continuity equation, and turbulent flow, is crucial for understanding blood circulation and pressure in multicellular organisms, including soft-bodied animals like sea anemones and earthworms.
2. Physics of sound wave and biology
Sound is a mechanical wave produced by vibrating bodies, such as vocal cords, during exhalation.
The vibrations disturb surrounding air molecules, causing them to follow the vibrating body's motion.
These disturbances propagate away from the source, reaching the eardrum, producing nerve impulses interpreted by the brain.
3. Physics of electricity and biology
Electrical phenomena play a crucial role in life processes, such as the nervous system of animals and muscle movement control.
Neurons form a complex network, with the brain at its center, which stores and analyzes information. This information is used to control various body parts through electrical pulses.
4. Optical physics and biology
Light, a small part of the electromagnetic spectrum, plays a crucial role in physics and biology.
It is utilized in photosynthesis, animal development, and chemical reactions in living systems.
Optical physics studies light, including microscopes, telescopes, vision, color, pigments, illumination, spectroscopy, and lasers, all of which have applications in life sciences.
Physics and astronomy
Astrophysics studies the physics of celestial objects like the solar system, stars, interstellar gas, galaxies, and the Universe as a whole.
Newton’s laws of motion and astronomy
Newton's law of gravitation describes the motion of the moon and planets around the sun, while Kepler's Laws explain planetary motion.
Understanding centripetal and centrifugal forces helps understand orbital mechanics, including planets, moons, and satellites.
2. Physics of electromagnetic wave and astronomy
Astronomers study the birth and death of stars, the distance of objects, and the formation of the universe using various telescopes.
They use false colors to represent data from wavelengths we can't see.
Light is used to measure distance of astronomical objects, using the inverse square law of apparent brightness and true brightness, also known as luminosity.
Astronomers also use a light year as an alternate distance measuring unit, based on the distance light travels in one year.
3. Physics of atoms and astronomy
Atomic astrophysics focuses on calculating atomic physics to interpret astronomical observations.
It involves studying the emission and absorption of radiation, which is related to the structure and energies of individual atoms.
This helps measure the compositions, temperatures, and motions of stars by studying their spectra.
In interstellar matter, electrons are heated by nearby stars, causing electrons to fall to lower energy orbits and emitting light with specific wavelengths.