Bilingual Counting Card featuring illustrations of two Florida Alligators.
English Counting Card featuring illustrations of two Florida Alligators.
Spanish Counting Card featuring illustrations of two Florida Alligators.
Illustration of the superposition of two angles to compare magnitudes of the same kind.
"An apparatus designed to measure the elongation or contraction of a spring when attached to two scale-pans,…
An illustration of a boy watching two rabbits dig two separate holes but believes that it is one large…
A chaise, sometimes called chay or shay, was a formerly popular, light two- or four-wheeled traveling…
2 congruent circles whose intersection includes a tangent circle with diameter equal to the radii of…
A regular hexagon containing 7 congruent circles. The circles are externally tangent to each other and…
The first two-fluid cell was incented by Daniell, and English electrician in 1836..." -Atkinson 1903
"An electrodynamometer is a galvanometer with two coils, at least one of which is movable, and through…
Bilingual Counting Card featuring illustrations of two Flamingos.
Bilingual Counting Card featuring illustrations of two Florida Manatees.
English Counting Card featuring illustrations of two Florida Manatees.
Spanish Counting Card featuring illustrations of two Florida Manatees.
Bilingual Counting Card featuring illustrations of two Florida Panthers.
English Counting Card featuring illustrations of two Florida Panthers.
Spanish Counting Card featuring illustrations of two Florida Panthers.
"In railway engineering, the running together of parallel tracks into the space occupied by one, by…
"Argent, a fess gules, impaled with argent, a bend azure. IMPALED. Two coats of arms, conjoined paleways,…
"The double convex lens may be described as the part common to two spheres that intersect each other.…
"By placing two plane mirrors facing each other, we may produce an indefinite series of images of an…
Bilingual Counting Card featuring illustrations of two Palm Trees.
"The effect of holding polarizing lenses at right angles to each other." -Avery 1895
"A prism is a transparent body with two refraction surfaces that lie in intersecting planes. The angle…