Pitch
Frequency is the number of waves per unit of time, and in sound is heard…
Shannon
Doppler Effect
Doppler’s effect explains the perceived increase (or decrease) in the frequency of sound, light, or…
Relative Speed of Sound in Solids, Liquids, and Gases
The speed of sound is dependent on the properties of the material it travels through:…
Attenuation (Damping)
Attenuation is the decrease in the intensity of a wave propagating through a medium. Resonance…
Intensity of Sound, Decibel units, Log Scale
Sound Intensity is the power per unit area carried by a wave; power is the…
Production of Sound
Sound can be produced in many ways, by many different instruments and devices. Vibrating Strings…
Senescence and Aging
Senescence is the failure of cells to divide due to shortened telomeres that result in…
Existence of Regenerative Capacity in Various Species
Regenerative capacity is the ability of an organism to regrow certain parts of the body,…
Gene Regulation in Development
Gene regulation is the process of controlling which genes in a cell’s DNA are expressed.…
Pluripotency: Stem Cells
The pluripotency of a stem cell is the ability of a stem cell to develop…