Link between technology and physics

Technology Scientific principle(s)

Steam engine

Laws of thermodynamics

Nuclear reactor

Controlled nuclear fission

Radio and Television

Generation, propagation and detection of electromagnetic waves

Computers

Digital logic

Lasers

Light amplification by stimulated emission of radiation

Production of ultra high magnetic fields

Superconductivity

Rocket propulsion

Newton’s laws of motion

Electric generator

Faraday’s laws of electromagnetic induction

Hydroelectric power

Conversion of gravitational potential energy into electrical energy

Aeroplane

Bernoulli’s principle in fluid dynamics

Particle accelerators

Motion of charged particles in electromagnetic fields

Sonar

Reflection of ultrasonic waves

Optical fibres

Total internal reflection of light

Non-reflecting coatings

Thin film optical interference

Electron microscope

Wave nature of electrons

Photocell

Photoelectric effect

Fusion test reactor (Tokamak)

Magnetic confinement of plasma

Giant Metrewave Radio Telescope (GMRT)

Detection of cosmic radio waves

Bose-Einstein condensate

Trapping and cooling of atoms by laser beams and magnetic fields.

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