What is the appropriate way to observe this perfect day? First things first: the parfait is the appropriate food, its name coming from the French for perfect.
Suggested activities include bowling a perfect game or as close as you can get and rooting for a perfect game at your favorite baseball stadium. You could also sing organum with friends to celebrate the musical intervals of perfect fifths and octaves. You get bonus points if any of you have perfect pitch. And a couple hours studying your favorite language's grammar may help you perfect the perfect tense. Physics is lousy with perfection: perfectly frictionless surfaces, perfectly rigid bodies, and perfectly elastic collisions abound.
There are perfect fluids and perfect gases. Unfortunately, the labs are all out of them. Maybe you could find an odd one this time?
But given the amount of computational power required to find Mersenne primes, you might be better off with some other branches of math. Graph theory has perfect graphs , algebra has perfect groups , and topology has perfect sets and perfect spaces disappointingly not the subject of this Avett Brothers song. To make things more confusing interesting, it also has perfectly normal spaces , which are sometimes called perfect spaces, even though they're not the same as the other perfect spaces!
There's certainly enough there to keep you occupied for a while on this perfect day. To wind down, you can try to draw perfect circles with Vi Hart. No matter how you choose to celebrate, please avoid any involvement in perfect crimes or perfect storms.
The views expressed are those of the author s and are not necessarily those of Scientific American. Follow Evelyn Lamb on Twitter.
Already a subscriber? Sign in. Learn about The Nobel Prizes that have been awarded since , as well as the criteria and nomination process that are used to select the winners. NASA Kids is an excellent site for "kids" of all ages and provides an abundance of information, images, and interesting things to do on astronomy and the space sciences.
In this lesson, students learn about sources of high-energy radiation and calculate student exposure to ionizing radiation over the past year. Looking for the perfect date numerically? Today is the only day of the year where both the month 6 and the date 28 are different perfect numbers. June 6 is the only other perfect number date on the Western calendar. A perfect number is any ordinary whole number that equals the sum of its divisors excluding the integer itself these are called its proper divisors.
For example, the divisors of 6 are 1 and 6 and 2 and 3. The first four perfect numbers are 6, 28, , and 8,
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