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First, why the number 1728 ? Well, it is twelve cubed (meaning 12 x 12 x 12 )
and why not a perfect cube for a math website?
Also the first 5 prime numbers are 2, 3, 5, 7, and 11. 2 + 3 + 5 + 7 = 17 2 + 3 + 5 + 7 + 11 = 28 Pretty neat huh ? At first, our site consisted of 10 "non-interactive pages which would get very few hits. Then when we added interactive calculators, the traffic increased dramatically !!!
The 2 Unknown Calculator was written in Mid-December 1998. 12/17/98 - 3 Unknown Calculator 12/19/98 - 4 Unknown Calculator 1/1/99 - U L T R A C O N V E R T E R 1/8/99 - Quadratic Equation Calculator 1/18/99 - Cubic Equation Calculator 1/30/99 - Pythagorean Theorem Calculator 2/7/99 - CIRCLE AND SPHERE CALCULATOR 4/24/99 - MONTHLY LOAN PAYMENT CALCULATOR 5/1/99 - COMPOUND INTEREST CALCULATOR 5/15/99 - TEMPERATURE CONVERTER 6/25/99 - RESISTORS IN PARALLEL CALCULATOR 6/30/99 - BOYLE'S LAW CALCULATOR 7/1/99 - CHARLES' LAW CALCULATOR 7/4/99 - COMBINED GAS LAW CALCULATOR 7/11/99 - VECTOR ADDITION CALCULATOR 7/18/99 - INTEREST RATE ULTRA CONVERTER 7/20/99 - ANNUITY CALCULATOR 8/1/99 - STP & MOLAR VOLUME CALCULATOR 8/20/99 - DIGITALLY CORRECT GAME 8/25/99 - ANGLE/TIME/VIDEO FRAME CALCULATOR 10/25/99 - U L T R A C O N V E R T E R 2 12/13/99 - MAGNITUDE CALCULATOR 12/15/99 - FREQUENCY & WAVELENGTH CALCULATOR 12/18/99 - KEPLER's 3rd LAW CALCULATOR 12/26/99 - GRAVITATIONAL FORCE CALCULATOR 1/8/2000 - PERPETUAL CALENDAR/JULIAN DATE CALCULATOR 3/4/2000 - TIME CARD (PUNCH CLOCK) CALCULATOR 3/18/2000 -RIGHT TRIANGLE CALCULATOR 3/26/2000 -ULTIMATE TRIANGLE CALCULATOR 3/31/2000 -ANGLE CONVERTER 4/9/2000 -NON-METRIC "ADDING MACHINE 6/25/2000 -HALF-LIFE CALCULATOR 7/4/2000 - VIRTUAL LOTTERY 9/4/2000 - ULTIMATE ELLIPSE CALCULATOR 11/4/2000 - RADIOACTIVE DECAY CALCULATOR 12/8/2000 - RELATIVITY CALCULATOR 12/31/2000 - CURRENCY ULTRA CONVERTER (for 180 Currencies) -------This site will ALWAYS be 100 % free.------- We are striving to make this a "no-frills" web-site. Therefore, this website
will have NO FRAMES, NO FANCY GRAPHICS, NO SOUNDS, or anything
else that takes forever to download. As a matter of fact we've gone over six
years without posting a single advertisement.
1/15/99 We got listed on YAHOO !!! So to 'return the favor', and because it is a GREAT SEARCH ENGINE, here is a link to their search page: 
We have received several requests for a TIME converter that converts different world times (as opposed to calculating seconds in a year, etc.). So, how about a link to what we consider to be the BEST World Time Clock on the Internet. As you know, 1728 is very reluctant to put ANY links on this webpage, so take it from us, this site is FANTASTIC !!! But don't take our word for it, go to the World Clock: 
Need help exploring the "Internet Desert"? Well, Link Oasis is a great site with over 2,000 very useful links. To visit, just click the icon below. 
The employees at 1728 have earned several certificates from Brainbench.com
Bad Astronomy is actually a website for "good" astronomy facts, links, news and so on. So how does it earn its "bad" name? By exposing the mistakes about astronomy reported in newspapers, television and movies. Such sources unfortunately are rife with mistakes about astronomy. Luckily, people such as Phil Plait put the media back on the proper astronomical track. This is a top-notch site authored by a well-informed, well-credentialled astronomer. Please pay a visit to:
A tremendous website for extrememly precise scientific data is The
National Institute of Standards and Technology (formerly the National Bureau
of Standards). This is a highly professional, scientific website that will
meet the needs of even the most exacting scientist or web surfer. NIST is a
United States government agency and so you know the website and its
content can be regarded as impeccable.
It is run by a mathematics professor at Stony Brook University and you will find it quite useful.
The folks at 1728.com are all Mensa members. What's Mensa?  That's about it for now. No doubt more will be added.
 
We are a Top Ten site at TenLinks.com 
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