The early American farm horse helped build the country, as described in the book Farmer Boy by Laura Ingalls Wilder. The Wilders were successful and relatively wealthy farmers. Their barns (yes, more than one) are described in detail and they owned a herd of horses. The purebred Morgans also brought in quite a lot of money each year when Pa Wilder sold matched pairs of horses to New York City horse buyers. The Ingalls in contrast felt lucky to have even a single team of horses instead of oxen. The Ingalls horses, Sam and David, were not described by breed or even appearance, but they were just as important to the Ingalls as the purebred Morgans were to the Wilders. Sam and David were likely mixed breed horses which did not make them any less useful or less of a farm horse.
In simple terms, the frozen glass bottle, dime, and hot water on it all try to achieve the ambient temperature of the room (i.e. the whole and neutral state). This causes a physical reaction of the dime dancing as the cooler air from the frozen bottle clashes with the warmer air from the water. Metal works well in this experiment because it heats and cools quickly. Continue reading