Im green and flat. NIST researchers studied ways to
keep my color bright and the rest of me strong so that I
would last longer. Who am I?
Were round and white and we like to jump around. NIST
experts weighed us very carefully to make sure that the
drawing would be fair. Who are we?
Im steep, and sleek, and cold. I live in Utah. NIST
set my clock so the racers times will be just right.
Who am I?
You carry me with you everywhere. I have a very touchy personality
and I have more ridges than dipping potato chips. NIST studies
me to help take a bite out of crime. Who am I?
Im usually very quiet and I love to hang around in
hallways. Once in a while I really raise a ruckus. NIST
studies how I should be tested to make sure Im always
on guard. Who am I?
Im big and strong and even though Im more than
100 years old and all grown up, people still want to know
exactly how tall I am. NIST helped figure out that I am
exactly 169.31 meters or 555 feet, 5.9 inches tall. Who
You shouldnt leave the country without me. They might
not let you back in. NIST helps the State Department make
sure I can take a beating and still look good for at least
10 years. Who am I?
NIST carefully weighs things to measure their mass. But
theyve had to work very hard to weigh
me. Im so big I dont fit on any scale. The key
to my mass is my friend Big G. Based on recent NIST-funded
research to measure Big G, scientists think my mass is about
5 972 200 000 000 000 000 000 000 kilograms. Who am I?
to riddle me this!
here! Squint so you can see me! NIST invented a "ruler"
made of silicon atoms. It can measure things so small even
I can't see them.
May 8, 2001
Last updated: August 15, 2001