Super 8mm film loops approximately 10 minutes each.
This is old technology but some of the works are very good.
These are about 10 minutes each.

PIRA #	DEMONSTRATION
	Coupled Oscillators - Equal Masses
	Edge Effects
	Scattering In One Dimension Scattering In One Dimension Square Wells
	Scattering In One Dimension Barriers
	Scattering In One Dimension Momentum Space
	The Force On A Current
	Resolving Power
	Single Slit
	Interference Of Waves
	Diffraction Double Slit
	Rutherford Scattering
	Absorption Spectra
	Michelson Interferometer
	Tacoma Narrows Bridge Collapse
	Ferromagnetic Domain Wall Motion
	Paramagnetism of Liquid Oxygen
	The Center of Mass
	Doppler Effect
	Bragg Reflection of Waves
	Free Wave Packets
	Particle in a Box
	A Matter of Relative Motion
	Radioactive Decay
	Scintillation Spectrometry
	Radioactivity
	Maxwellian Speed Distribution
	The Cavendish Experiment
	The Photoelectric Effect

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