Software Newsletter #22 - November 12, 2002
1. The Truth about Vapor Pressure and Humidity%
2. Download and Evaluate our RaceLog Pro software for FREE
3. Reduced Prices for the Holidays
The Truth about Vapor Pressure/Humidity% --
Recently, I heard someone claiming to use vapor pressure in
addition to the percentage of humidity in his program for e.t.
prediction. That is like saying he is using temperature in addition
to temperature in his calculations. Huh? What did he just say? Exactly!
Vapor pressure and humidity are one and the same thing. Nothing more,
nothing less. Vapor pressure is the amount of moisture in the air expressed
as 'weight', in inches of mercury (inHg.) Humidity% is the identical
amount of moisture in the air, except that it is expressed as a percentage.
vapor pressure is the 'wet' part of the barometric pressure.
For example, if the barometric pressure is 29.92 inHg, the temperature
is 60 degrees, and the humidity is 0%, then the vapor pressure equals
0.000 inHg. Common sense, right? The air is perfectly dry and
the air 'weighs' 29.92 inHg. Now, with the same conditions above let's
change the humidity to 20%. The air is no longer perfectly dry, so this
is 'wet' barometric pressure. The barometric pressure is still 29.92
inHg. However, .104 inHg of that barometric pressure is vapor pressure
(moisture, humidity). So, in reality the 'dry' part of the air
weighs 29.92 - .104 = 29.816 inHg.
they be implementing the humidity twice you ask? It's called fudging.
I haven't seen any prediction program, other than our ET Predictor
and RaceLog Pro, that handles the humidity calculation
properly. That is one reason the other programs out there use an average
of runs. They can't do it accurately enough to predict off of one (1)
run. Gee, on average, my car will go 8.923. Not very scientific
is it? I guess if you can't do it right, just fudge it.
claim that I am hearing states that, with this particular software,
and ONLY this particular software, you can enter and track your opponents
runs. Wow! I would think that with ANY professionally written (his is
not?) database, that this would be possible. For example, with our RaceLog
Pro software you simply create a separate OPPONENTS database
and enter away. Man, this stuff just blows me away. (Grin)
Since it is very difficult for a novice to be able to tell the difference
between hype and truth in advertising, I try to set the record straight.
The next time you see similar claims in advertisements you'll know that
they are just as confused as you could be if you listened.
If you pay attention to details, like I try to, you can see some amazing
things happen with advertising. For example, when we posted our web
site and placed on the banner that we were established in 1986, some
of our competitors changed theirs to 1986. I am not sure if they were
even born in 1986, but I do know they were not established in this industry
at that time. And, that is a fact. We are the ET Prediction Experts!
-- Download and Evaluate our RaceLog Pro software for FREE --
We have posted a fully functional evaluation copy of our popular
RaceLog Pro software on the web site for download. You can down
load the Windows 32-bit software and try it 14 days for FREE. Use your
own weather data to see how much better you would have done this year
with our RaceLog Pro. Try it, before you spend a dime!
Just go to our Downloads area and follow the instructions.
Reduced Prices for the Holidays --
We have reduced the
prices on almost all of our products. Check the current prices of any
item you may be interested in. Some reductions are as follows:
DataMaster Sportsman Computer - Save $200.00
FS-2001 Professional Weather Station w/Wind - Save $100.00
8801-K EGT kit - Save $30.00
8803-K EGT kit - Save $30.00
1008 - Altimeter - Save $20.00
1700-P EGT probe - Save $10.00
-- REAL World Technical Support --
With Family Software, you'll get better technical support than anywhere
on the planet. Why? Because, we design and/or use all of the products
that we sell. All of my 30+ years of racing experience and knowledge
is available to you and our other customers. Try to find that kind of
information at any one of our competitors. You won't be able to, I guarantee
it! Family Software cares about the racer and his/her success as a racer.
We also want you to get the most value for your hard earned dollars.
-- Toll Free Ordering --
We also have a new Toll Free Order line to save you even more money!
If you're placing an order by phone, call 877-497-0992. If you need
information or technical help, call 610-497-5561.
-- Secure Ordering --
You can safely order directly from our web site. All of your information
and it is posted on the web site. Our company is registered with the
Public Eye for safe, secure ordering.
have questions or topics that you would like to see covered in this
newsletter, please Email them to me.
Family Software - Drag Racing Computers and Software
http://www.iFamilySoftware.com - 610.497.5561(Voice/Fax)
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