Wave propagation apparatus

A wave propagation apparatus, comprising:

• a container having a length and a width, said container further having a bottom side and a plurality of vertical sidewalls;
• a base layer formed of a first liquid, said base layer having contact with said bottom side and said plurality of vertical sidewalls of said container, said first liquid being dyed water;
• an overlying layer formed of a second liquid, said overlying layer having contact with said plurality of vertical sidewalls of said container but not with said bottom side of said container, said second liquid being mineral oil,
• wherein a density of said second liquid is lower than a density of said first liquid, such that said second liquid floats on top of said first liquid,
• wherein said base layer and said overlying layer are not homogenized or admixed within said container, such that said base layer and said overlying layer stably remain in separate distinct layers within said container with said overlying layer being in contact with said base layer and in overlying relation to said base layer;
• a pair of central shafts positioned across said width of said container at a spaced distance above said overlying layer;
• a driver sprocket disposed around one of said pair of central shafts above said overlying layer;
• a driven sprocket disposed around the other of said pair of central shafts above said overlying layer,
• wherein said driver sprocket and said driven sprocket are rotatable about said pair of central shafts;
• a motor that drives rotation of said driver sprocket;
• a power source that powers said motor;
• a closed chain loop disposed around said driver sprocket and said driven sprocket above said overlying layer, such that said closed chain loop does not contact said overlying layer, said closed chain loop positioned in substantially parallel relation to said length of said container,
• wherein said closed chain loop rotates about said driver sprocket and said driven sprocket during rotation of said driver sprocket and said driven sprocket;
• and
• a pair of elongate, straight paddles secured to said chain loop and extending outwardly from said chain loop in a substantially perpendicular direction, wherein said pair of elongate paddles contact and travel through said overlying layer during rotation of said closed chain loop, wherein said pair of elongate paddles does not contact said base layer,
• wherein each of said pair of paddles is disposed at an end of said closed chain loop, such that during rotation of said chain loop, when one of said paddles is disposed at or near said driver sprocket, the other of said paddles is disposed at or near said driven sprocket,
• wherein said each paddle includes two flanges that are secured on each side of said chain loop, wherein said each paddle is secured to said chain via a cotter pin disposed through said chain and through apertures in each flange of said each paddle,
• said pair of each displacing said overlying later during rotation of said chain loop, thus creating a dragging wave in said base layer, due to a surface tension between the base layer and said overlying layer.

A wave propagation device, comprising:

• a containment apparatus containing a base fluid and an overlying fluid, said base fluid having a first density and said overlying fluid having a second density that is lower than said first density, such that said base fluid and said overlying fluid remain separate with said overlying fluid remaining stable in overlying relation to said base fluid;
• and
• one or more elongate paddles rotatably positioned above said base fluid and said overlying fluid, said one or more elongate paddles having a length so that said one or more elongate paddles enters said overlying fluid but does not enter said base fluid,
• said one or more paddles creating a dragging wave in said base fluid during rotation at a predetermined speed, due to displacement of said overlying fluid by said one or more paddles and due to a surface tension between said base fluid and said overlying fluid.