Adam and Jamie team up to find out if a singer can break a wine glass without amplification. The rest of the team attempts to discover if a rolling stone gathers no moss, and if a regular shop vac can be transformed into a jet engine. Science concepts include resonance frequency, natural resonance, hertz, wavelength, amplitude, harmonic waves, fundamental waves, sound concentrations, tone, pitch, decibels, crystal harmonics, crystalline structure, energy transfer between mediums, energy reverberations within materials, constructive interference, material oscillations, biomechanics, combustion, thrust, jet engine engineering principles, fuel compression, and gas expansion.
Jamie and Adam explore the story that an ultra-low frequency note will make a person lose bowel control. They also test to see if the force of a bullet is enough to knock a person backwards like in the movies. Finally, Kari, Tory, and Grant investigate if Chinese water torture is effective. Scientific topics addressed include Newton’s Third Law of Motion, equal and opposite reactions, mass and inertia, speed and mass, impact force, energy dissipation, low frequency sound waves, infrasound, hertz, frequencies, biological responses, mental confusion, decibels, psychological stresses, and human ethics.
The Mythbusters attempt to construct a subwoofer with enough power to shatter the windows in a car. This is a great episode for exploring low-frequency sound and their effects. Kari, Grant, and Tory explore the myth that driving faster over bumps makes them less intense. Here, they also make a distinction between quantitative and qualitative data. Scientific concepts include sound waves, amplitude, frequency, hertz, decibels, pressure waves, decibel scale, sound amplification, rubber diaphragms, sound wave oscillation, suspension deflection, and qualitative vs. quantitative data comparisons.