The hash marks are 60 feet from the nearest sideline, making the two rows of hash marks 40 feet apart. And when the ball is marked on a hash mark in college, the offensive team has less in-bounds territory on one side. In the pros, the closer hash marks give a team more field to work with.

Lockney was a football fan from Waukesha, Wisconsin with an idea to add stripes running parallel to and between the yard lines in the hash mark area and along the sidelines. Lockney added his lines on the local high school field in 1954 and they were a hit.

According to Wikipedia, the hash marks in American football were introduced in 1932, at which time they were placed 10 yards in from the sidelines. They have since migrated inward to 15 yards in 1935 and 20 yards in 1945, ending up in 1972 at their current position of 23 yards 1 foot 9 inches in from the sidelines.

A check mark (American English), checkmark (Philippine English), tickmark (Indian English) or tick (Australian, New Zealand English, and British English) is a mark (✓, ✔, etc.)

Tick marks provide reference for points on a scale. Each tick mark represents a specified number of units on a continuous scale, or the value of a category on a categorical scale. Similarly, how do you read decimals on a number line?

For drawing a number line; draw a line of some suitable length and mark points on it so that the line is divided into required equal parts. Mark its middle point as zero. Towards the right of zero, mark the numbers +1, +2, +3,…… etc. at equal distances and towards the left of zero, mark -1, -2, -3,…… etc.

A tick is a short line on an axis. For category axes, ticks separate each category. For value axes, ticks mark the major divisions and show the exact point on an axis that the axis label defines. Ticks are always the same color and line style as the axis.

After accessing the “Insert” menu, find the “Symbol” tab. From this section, choose the “Font” option and select “Wingdings”. The tick mark will be found at the bottom of the list.

William S. Cleveland, in his excellent book The Elements of Graphing Data , recommends that tick marks should point outwards ‘because ticks that point inward can obscure data’.

The larger markings on a metric ruler represent a centimeter. The smaller ticks on a metric ruler represent a millimeter. There are 10 millimeters in a centimeter so there are 9 millimeter ticks between each centimeter tick.

You start at 0 inches or 0 cm. If you start at 1, you’ll always be off in your measurement by 1.

The length between your thumb tip and the top knuckle of your thumb is roughly one inch.

On a ruler there are 16 sixteenths in an inch.

Every sixteen inches on a tape is marked for standard framing of walls on a house or building. The vertical studs are on sixteen inch center.

Fraction, Decimal, and Millimeter Equivalent Measurements