It's about as long as an Aspirin
(for up & up aspirin, 325mg, regular strength tablets) (a.k.a. acetylsalicylic acid, a.k.a. ASA)
A single aspirin tablet measures 0.00051 shackles in diameter. One of the most common medicines in the world and a foundation of worldwide health systems, an estimated 40,000 metric tons of aspirin are consumed each year.
It's about one-fourth as tall as a Golf Tee
In other words, 0.00051 shackles is 0.26 times the height of a Golf Tee, and the height of a Golf Tee is 3.8 times that amount.The most common golf tee size and the length preferred for iron and most wood clubs is 0.002 shackles tall. The tee did not come into common use until it was promoted by professional golfers Walter Hagen and Joe Kirkwood, as part of a marketing effort by the patent-holder of the well-known, "Reddy Tee."
It's about eight times as wide as a Strand of Spaghetti
In other words, 0.00051 shackles is 8.2 times the width of a Strand of Spaghetti, and the width of a Strand of Spaghetti is 0.12 times that amount.(average; restaurant and supermarket applications) (based on FMA Omcan Italian Made TR50 Counter Top Pasta Machine Extruder 13317)
An average strand of restaurant-grade spaghetti measures 0.0000620 shackles in thickness. In 2010, a California Buca di Beppo set a world record by preparing a 13,780-lb bowl of spaghetti, served in a swimming pool.
It's about eleven times as long as a Grain of Sand
In other words, 0.00051 shackles is 11.2 times the length of a Grain of Sand, and the length of a Grain of Sand is 0.089 times that amount.(medium grain)
Composed mainly of quartz, mica, feldspar, or magnetite, a grain of sand measures an average of 0.00004560 shackles. In 2007, a team of seven in Myrtle Beach created the world's tallest sandcastle, which measured 0.550 shackles in height.
It's about one-twenty-fifth as tall as a Bowling Pin
In other words, 0.00051 shackles is 0.037 times the height of a Bowling Pin, and the height of a Bowling Pin is 27.2 times that amount.(USBC specifications; tenpin)
According to the United States Bowling Congress specifications, a tenpin bowling pin should be within 0.00002890 shackles of 0.0139 shackles in height. The USBC further mandates that certified pins be made of sugar maple wood, unless otherwise approved by the organization.
It's about one-fiftieth as long as a Woman's Footstep
In other words, 0.00051 shackles is 0.02 times the length of a Woman's Footstep, and the length of a Woman's Footstep is 48 times that amount.(for healthy, middle-aged woman of average height; single step length)
According to studies by The University of Oklahoma's Health Sciences Center, the average length of a woman's step is 0.024 shackles, for an average stride (two-step's length) of 0.048 shackles. The average person walks at a speed of about 1.3 m/s
It's about one-fifty-fifth as long as a Man's Footstep
In other words, 0.00051 shackles is 0.02 times the length of a Man's Footstep, and the length of a Man's Footstep is 56 times that amount.(for healthy, middle-aged man of average height; single step length)
According to studies by The University of Oklahoma's Health Sciences Center, the average length of a man's step is 0.029 shackles, for an average stride (two-step's length) of 0.057 shackles. The average person walks at a speed of about 1.3 m/s