# Reference

## Average Family Size in USA

Through the years, the average family size in USA has changed. From the 1930s up to the 1970s, the preference has been for large families. But there are several factors that are causing people to choose fewer number of children now.

## The Size And Shape Of The Earth

The size and shape of the Earth can be measured in different ways. Although the planet appears like a perfect sphere, its shape is actually more complex than that. Gather facts about the Earth’s size and the elements that make it up.

## Biggest States by Size

When measuring the biggest states by size, two methods are employed: by area and population. Measured by population, the biggest would be California with 37,691,912 (as of July 2011). If…

## Dimensions of a Standard Bearer

Dimensions of a standard bearer have evolved as their functions have changed through the years. Some of the standards used in the past were the Banners and Vexillum. Standards today are often flags, but they can also be other types.

## Grinding Machine Dimensions

The grinding machine is a device used for cutting and grinding of various objects, from steel to plastic. The grinding machine dimensions vary too as there are many types available, including gear cutters and belt grinders.

## DVD Case Dimensions

DVD case dimensions vary depending on their type. A typical DVD case would measure around 187 millimeters high by 142 millimeters wide by 10 millimeters deep.

## Are All Ring Sizes the Same

To this day there are people wondering if “are all ring sizes the same?”. Aside from this question, there are also other aspects to consider such as how fingers have to be measured. Get insights into ring finger sizing and how to find the appropriate size.

## Bracelet Sizes

Bracelet sizes are categorized as small, medium, large and extra large. These can be anywhere from 6 and ½ inches to 8 inches for adults; and 4 inches up to 7 inches for kids.

## Centimeters Inches

Both centimeters and inches are units of length. The only difference is that they belong to different systems of measurement. You can consult online tools or just do the math yourself when converting from one unit to the other.

## Average Lot Size in USA

The average lot size in USA has seen numerous changes through the years. Several factors have affected its size, and will continue to do so. Before you buy lots or homes, there are many factors to consider such as access and any environmental hazards.

## Apparent Diameter Moon

Looking directly at the moon from the earth may play tricks on the eyes. The result is the moon’s apparent diameter. Moon-watchers without the aid of science or scientific tools may have an amusing idea of how big is the moon.

## Most Expensive Diamond Ring Ever

Among precious stones, the diamond is regarded as the most valuable and can be found on expensive rings. There are many high priced rings but the Chopard Blue Diamond is the king. Get up close with the most expensive diamond ring ever and how much it is worth.