• AIMSAT11.ZIP (28K)

    Uploaded Thu Aug 26 2021 18:21:00

    Aimsat 1.1 computes satellite dish aiming
    angles from a list of avaliable satellites.
    Tabular data can be saved on a disk file.
    Registration is only 10 US$.
    
    
  • ARTOOL3.ZIP (163K)

    Uploaded Thu Aug 26 2021 18:21:00

  • AST52DOS.ZIP (463K)

    Uploaded Thu Aug 26 2021 18:21:00

    * Astrolog 5.20 is a many featured and
    customizable astrology chart calculation
    program for DOS, Windows, Mac, and Unix,
    used in 25+ countries on six continents.
    It is 100% freeware and requires no
    registration fee. :) The complete source
    code is available. Astrolog features:
    wheels, aspects, midpoints, relationship
    charts, transits, progressions, some
    interpretations, astro-graphy, local
    horizon, constellations, planet orbits,
    dispositors, various influence charts,
    biorhythms, different zodiacs, central
    planets, 14 house systems, 8400 year
    ephemeris, asteroids, Uranians, fixed
    stars, Arabic parts, script files and
    macros, interactive PC & MS/X11 Windows
    graphics, smooth animation of charts,
    graphic files in PostScript, Windows
    metafile, and bitmap formats, and more!
    
    
  • AST52SRC.ZIP (284K)

    Uploaded Thu Aug 26 2021 18:21:00

    This is the full source code for the program   
    Astrology 5.20 available in "C" allowing analysis, 
    modification, and easy porting. 
    
    
  • AST52WIN.ZIP (503K)

    Uploaded Thu Aug 26 2021 18:21:00

    * Astrolog 5.20 is a many featured and
    customizable astrology chart calculation
    program for DOS, Windows, Mac, and Unix,
    used in 25+ countries on six continents.
    It is 100% freeware and requires no
    registration fee. :) The complete source
    code is available. Astrolog features:
    wheels, aspects, midpoints, relationship
    charts, transits, progressions, some
    interpretations, astro-graphy, local
    horizon, constellations, planet orbits,
    dispositors, various influence charts,
    biorhythms, different zodiacs, central
    planets, 14 house systems, 8400 year
    ephemeris, asteroids, Uranians, fixed
    stars, Arabic parts, script files and
    macros, interactive PC & MS/X11 Windows
    graphics, smooth animation of charts,
    graphic files in PostScript, Windows
    metafile, and bitmap formats, and more!
    
    
  • BONDIT20.ZIP (158K)

    Uploaded Thu Aug 26 2021 18:21:00

    (v2.0) Bondit - 
    
    Bondit is designed to give the 
    introductory chemistry student
    practice is doing Lewis electron 
    dot formulas for molecules that
    follow the octet rule.  After
    completing the correct Lewis 
    formula a 3-dimensional structure
    that can be rotated is presented.
    
    DEMO(US$10 + $2 S and H)
    Timothy J. Allen
    ALLENT@mail.firn.edu
    
    
  • CHEM2_US.ZIP (92K)

    Uploaded Thu Aug 26 2021 18:21:00

  • CHMMKR10.ZIP (113K)

    Uploaded Thu Aug 26 2021 18:21:00

    (v1.0) Chmmkr - 
    
    Chmmkr, the chemical synthesizer, is designed
    for the introductory chemistry student.  It
    provides a graphical animated representation 
    of the major types of chemical reactions
    giving the student a conceptual view of 
    what is going on at the atomic level.
    Windows 3.0 and higher.  The unregistered
    version contains 2 reactions and the 
    registered version 5.
    
    Shareware(US$10 + $2 S and H)
    Timothy J. Allen
    ALLENT@mail.firn.edu
    
    
  • CO102.ZIP (444K)

    Uploaded Thu Aug 26 2021 18:21:00

    CONVERTER PRO/WIN V1.02 - Professional unit 
    converter. User-extendible database includes 
    length, area, volume, mass, force, pressure, 
    density, energy, power, temperature, dynamic 
    viscosity, kinematic viscosity and time 
    units. Units can be composed from up to four 
    available units (for example BTU, lb. and 
    deg. F will give BTU/lb. deg.F). Written by a
    professional engineer for other pros.
    
    
  • COGOC070.ZIP (91K)

    Uploaded Thu Aug 26 2021 18:21:00

  • DIFFER.ZIP (32K)

    Uploaded Thu Aug 26 2021 18:21:00

    DIFFER - This program was written to help
    with differentiation. It accepts algebraic
    expressions with support for a number of
    functions and will differentiate the
    expression with respect to x. Written by Paul
    Young, using Turbo C++.
    
    
  • ELCAD10.ZIP (153K)

    Uploaded Thu Aug 26 2021 18:21:00

  • HRCAL20.ZIP (320K)

    Uploaded Thu Aug 26 2021 18:21:00

    (v2.00) HRCalc - Win Astronomy
    Approximates stellar radii given a star's
    luminosity and effective temperature.
    Useful for amateur astronomers, educators,
    and students wishing to gain further 
    insight into the Hertzsprung-Russell 
    diagram. The program models stellar sizes
    in respect to our sun / solar system. 
    Shareware (US$ 15.00 Check/Money Order)
    David C. Irizarry  xerxees@ix.netcom.com
    
    
  • KALKUL11.ZIP (387K)

    Uploaded Thu Aug 26 2021 18:21:00

    KALKULATOR v1.10 - A powerful sci/eng
    calculator for Windows 3.1 and 95. More than
    100 functions (stat. distributions, Euler,
    conditional, user-defined), function graphs,
    statistics (mean, s.d., histograms, poly
    regression), column-wise operations on stat
    data. Expression evaluation, unit conversion,
    phys.constants, save/restore, on-line help.
    
    
  • MEASRS11.ZIP (57K)

    Uploaded Thu Aug 26 2021 18:21:00

    MEASURES v1.1,  Convert 100's of Measurements from U.S. to 
    Metric and from U.S. units to other U.S. units.  Convert length,
    area, volume, speed, acceleration, temperature, power, density,
    pressure, weight, work, time, angles, bits & bytes!  Point and
    click operation actually makes measurement conversions fun and 
    will save time and brain cramps.  A must have for home, business
    and school.  Requires Vbrun300.dll, mouse, Windows 3.1 or Win95.
    Shareware $12.00 registration fee.
    
    
  • MTC95201.ZIP (316K)

    Uploaded Thu Aug 26 2021 18:21:00

    MTRXCALC A Calculator interface to Matrix 
    Algebra, including a parser for expressions 
    as: inv(A)*(3*B-trans(C)) and buttons for 
    solving, factoring, finding eigenvalues and 
    eigenvectors, extracting rows and columns, 
    concats, elementary row operations, complex 
    or real display, norm, determinant, inverse, 
    conjugate transpose, condition number, file 
    save and print on Windows NT or Windows 95. 
    Easy entry on mock spreadsheet like format.
    
    
  • MYSTAR23.ZIP (489K)

    Uploaded Thu Aug 26 2021 18:21:00

    MyStars! Ver 2.3 Astronomy, planetarium 
    for Windows. View the stars, planets, COMETS,
    Messier objects to scale as seen from any
    place on earth any date/time. Now with: Help,
    images, Zoom In/Out, Object tracking and
    Animation. Star & Constel. Names, Alt/Azi,
    Rta/Dec, ELatLng lines. StatusBar. FULLSCREEN
    Scientific, Educational. Min Reqd: 386,
    Win 3.1, no copro reqd. Shareware: reg. $12
    Runs great on Win 3.x, 95 and Win NT too!
    
    
  • NUC10.ZIP (149K)

    Uploaded Thu Aug 26 2021 18:21:00

    (v1.0) Nuclear - 
    Designed for the introductory
    chemistry or physics student, this 
    is a tutorial in nuclear chemistry/
    physics.  The program contains
    a number of animated sequences 
    designed to help in the understanding
    of the concepts presented. Included
    are sections on radioacitve decay,
    half-life, nuclear reactions, nuclear
    fission, and nuclear fusion.  This is
    a Windows program.
    
    Shareware(US$10 + $2 S and H)
    Timothy J. Allen
    ALLENT@mail.firn.edu
    
    
  • PERIOD03.ZIP (411K)

    Uploaded Thu Aug 26 2021 18:21:00

  • SHPCST20.ZIP (81K)

    Uploaded Thu Aug 26 2021 18:21:00

     - Shopcost 2.0 - 
     Shows machine capacity with 3D bar graphs.
     Computes the min/max. performance of turning
     and milling machines using a power constant.
     Shows metal removal rates in cubic inches per 
     minute, and displays the time needed to machine 
     a single part using a piechart. Calculates the 
     weight, volume and price of raw materials in 
     metric or english. Needs DOS, 80286 or better 
     and EGA/VGA. This file replaces shpcs1cd.zip. 
    
    
  • SOP9615A.ZIP (297K)

    Uploaded Thu Aug 26 2021 18:21:00

    STSORBIT PLUS Version 9615: Track and display
    any satellite for which orbital data is avail-
    able. Used by NASA and the aerospace industry
    as well as hams and "just plain folks" around
    the world. Math coprocessor chip recommended.
    Now includes Multi-Satellite Tracking Feature.
    By: Dave Ransom, 7130 Avenia Altisima, Rancho
    Palos Verdes, CA  90275  USA.
    
    
  • STARS_21.ZIP (76K)

    Uploaded Thu Aug 26 2021 18:21:00

    Universe simulation program in EGA. Can do
    slide show of generations.  Many  Options.
    
    
  • SYMBOL63.ZIP (140K)

    Uploaded Thu Aug 26 2021 18:21:00

    Mathomatic V6.3: Symbolic math program.
    This program can automatically
    solve, simplify, combine, and graph
    algebraic equations, etc.  Does
    calculus operations, too.  Runs
    under MS-DOS or Windows.
    
    
  • TEMPERTR.ZIP (30K)

    Uploaded Thu Aug 26 2021 18:21:00

    TEMPERTR - a program to convert
    between the three widely used
    temperature scales. requires an
    $8 registration. see register.doc
    for more info.
    
    
  • UCALC30C.ZIP (99K)

    Uploaded Thu Aug 26 2021 18:21:00

    ULTIMATE CALCULATOR v3.0c Graphic scientific
    calculator. Expression evaluator with many
    built-in functions, operators, numerical
    notations, and modes. User variables &
    functions. Solves, and plots equations, does
    integrations and summations. Supports hex &
    binary notations. Radian & degree modes.
    Resizable TSR window. 18 significant digits.
    Mouse support. Online help and much more.