Physics & Energy
1,170 articles in Science & Technology
Explore physics & energy with fun, age-appropriate articles written just for kids!
Articles — Page 19
Quantum theory
Quark
Quartz clock
Rachel Carson
Radar
Radiation
Radio broadcasting
Radio wave
Radiography
Radiometry
Raking light
Random sequential adsorption
Rare-earth magnet
Rarefaction
Rattleback
Rayleigh scattering
Rayleigh–Taylor instability
RC time constant
Real-time analyzer
Receiver
Rechargeable battery
Recuperator
Reflection (physics)
Refracting telescope
Refraction
Refractive index
Refrigerant
Relative density
Relative permittivity
Relativity
Renard series
Residual stress
Resistor
Resonance
Resonator
Reverberation
Reynolds number
Richard Dixon Oldham
Richard Feynman
Rickenbacker
Right-hand rule
Rinky Dink (sound system)
RM Hubbert
Robert Adler
Robert H. Dicke
