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Science
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WordNet-Online free dictionary and hierarchical thesaurus of English. Very easy to use! Definitions, synonyms, antonyms, hypernyms, hyponyms, meronyms, holonyms, derived forms and sample sentences.
Freeware,
Updated 7 July 2015
Downloads
482
482
Last week
2
2
SkyDome is a starmap including the radio sky with an original user interface. SkyDome is a star chart utility which eneables you to study stars, planets, galaxies andradio sky using an interactive interface.
Freeware,
Updated 13 April 2009
Downloads
437
437
Last week
2
2
VariCAD is a 3D/2D CAD solution for mechanical engineering. In addition to standard tools for 3D modeling and 2D drafting, the CAD system provides tools for sheet metal unbending and crash tests, libraries of standard mechanical parts ...
Freeware,
Updated 24 April 2025
Downloads
3,177
3,177
Last week
2
2
Aciqra is an open source desktop planetarium which simulates the sky as seen from anywhere on the planet with tracking capability for 120,000 stars, all 8 planets, a custom list of comets, the sun and moon, deep sky objects and the 88 constellations.
Freeware,
Updated 24 September 2013
Downloads
318
318
Last week
2
2
ADOS is full-featured program that can help you design, analyze and optimize superior optical systems. ADOS provide an integrated software environment that enables you complete almost any task in contemporary optical design.
Shareware,
Updated 27 April 2026
Downloads
525
525
Last week
1
updated 1
An interactive and intelligent psychrometric chart program for HVAC engineers. It provides the most accurate and reliable data based on Hyland and Wexler's reports published by ASHRAE, which treat air and vapor as real gases, rather than ideal gases.
Shareware,
Updated 6 January 2020
Downloads
1,889
1,889
Last week
1
1
An innovative earth simulation that combines an easy to navigate 3 dimensional globe with real-time weather, live earthquakes, webcams, volcanoes and current cloud formations. Great educational tool, a must have for avid weather watchers!
Shareware,
Updated 24 November 2014
Downloads
902
902
Last week
1
1
Downloads
14,596
14,596
Last week
1
1
EasyNN-plus is a neural network system for Microsoft Windows. It makes the creation of neural networks easy. It allows the user to produce multilayer neural networks from a grid or from text files and images.
Shareware,
Updated 4 June 2020
Downloads
1,311
1,311
Last week
1
1
The prime purpose of Gravitorium is to let you play with ideas about gravity and gravitational systems. Create an entirely new solar system from scratch!
Shareware,
Updated 31 August 2011
Downloads
371
371
Last week
1
1
StormPredator displays personal NEXRAD doppler radar images on a 3D GIS topographic maps. It has EXCLUSIVE GPS storm tracker & predictor tool, plus personal scan zone and a distance measuring tool. Email, pager/cell phone alert
Shareware,
Updated 23 February 2022
Downloads
615
615
Last week
1
1
ThreeDimSim is a powerful 3D mechanics simulation and rendering application. A 3D scene is defined by script using simple shapes and imported meshes from CAD files. Mechanics are simulated and rendered and can be analysed and exported.
Freeware,
Updated 25 May 2017
Downloads
567
567
Last week
1
1
Chemical database software for management of databases of any size, structure drawing, SDF import/export, duplicate removal, diversity analysis, chemical web server, combinatorial chemistry, prediction of LogP/LogC, and MASS/NMR/IR spectra management
Shareware,
Updated 1 June 2024
Downloads
487
487
Last week
1
1
The perfect solution for physics students and teachers everywhere, Physics 101 SE is the premier physics calculation tool, allowing you to focus on physics and not mathematical busywork by working with over 150+ equations and other features.
Demo,
Updated 17 January 2022
Downloads
834
834
Last week
1
1
This Periodic Table is an excellent tool for both students and serious researchers. It includes over 20 types of data on each element, most of which can be corelated in a particle or line graph. It even has a powerful chemical equation balancer
Freeware,
Updated 18 October 2012
Downloads
818
818
Last week
1
1
Measurement unit conversion program. You can convert between 1545 different units quickly and easily. iUnit also displays the values of 91 physical constants.
Shareware,
Updated 24 March 2026
Downloads
343
343
Last week
1
1
Periodic table of the elements software. In addition to the usual information found in such programs, it also contains a wealth of nuclear information on each isotope, including half life, decay mode, and daughter products.
Shareware,
Updated 24 March 2026
Downloads
464
464
Last week
1
1
DNA Baser Sequence Assembler is easy to use software for simple and batch DNA sequence assembly, DNA sequence analysis, contig editing, metadata integration and mutation detection. It also offers a powerful chromatogram viewer/editor.
Shareware,
Updated 23 July 2021
Downloads
2,323
2,323
Last week
1
1
Classifion is chemometrics software for classification of substances using their mass-spectra. The used discriminant analysis is based on Principal Component Analysis with Mahalanobis Distance (PCA-MD) - part of multivariate analysis.
Freeware,
Updated 16 January 2026
Downloads
451
451
Last week
1
1
SpaceCAD is the perfect tool for rocket enthusiasts who want to build their own rockets or simulate their existing designs without having to learn complex rocket design software.
Shareware,
Updated 18 October 2020
Downloads
946
946
Last week
1
1
The program simulates vision of the snake eye and demonstrates why the snake is unable to see you when you have stopped moving. The program requires video capture device (e.g. web camera).
Freeware,
Updated 14 November 2025
Downloads
414
414
Last week
1
1
Allows independent control of frequency,phase and volume on left and right channels.Measured data points can be easily captured for storage and later statistical analysis.The perfect tool for psychophysics and psycho-acoustics laboratory experiments
Freeware,
Updated 14 November 2025
Downloads
2,690
2,690
Last week
1
1
All-in-one freeware for pH and equilibrium calculations, real data analysis and simulation of titration curves of acids, bases, salts and buffers (from simple solutions to complex mixtures) with interpolation, smoothing and nonlinear regression.
Freeware,
Updated 31 August 2014
Downloads
1,088
1,088
Last week
1
1
Feature rich and user friendly application for analysing array-experiments (e.g. from provider Affymetrix). It includes additional gene information, multiple analysis methods, automatic pathway mapping with an editor, function prediction...
Demo,
Updated 27 April 2026
Downloads
2,293
2,293
Last week
1
updated 1
You can see invisible electric field - if you use "Electric Field". It is an excellent tool forvisualizing electric field and equipotential lines. Visibility of field line and potential surface depends on their magnitude.
Freeware,
Updated 26 September 2021
Downloads
7,570
7,570
Last week
1
1
Create your own custom knitting grids and diagrams. Complete control over the diagram characteristics: Number stitches and rows per inch. Total number of stitches and rows. Selection of paper size. Optionally print out row and stitch numbers.
Shareware,
Updated 9 May 2008
Downloads
253
253
Last week
1
1
SimSolar - Solar System Simulator for Windows. Includes easy-to-use display and controls, tilt and rotation options for easy viewing, options for scaled planet and orbit sizes, and over 150 years of range. Registered version includes much more!
Shareware,
Updated 29 June 2022
Downloads
356
356
Last week
1
1
Path finding algorithms are used for robotic navigation, route optimization and other applications. The program demonstrates path finding in the maze. It uses Depth-First Search algorithm and has two optional heuristic optimizations.
Freeware,
Updated 14 November 2025
Downloads
663
663
Last week
1
1
In http://en.wikipedia. org/wiki/Prefrontal_cortex you can read a sentence that abolishes all known earlier (Eysenck, Wechsler, Raven, Amthauer ...) personal IQ tests. So as IQ constantly changes, only IQ tests with random generated tasks are true.
Freeware,
Updated 2 January 2015
Downloads
518
518
Last week
1
1
This application uses a highly flexible, general, finite element method for static and dynamic analysis of multi span beams, 2D Trusses and 2D Frames. It features a powerful, interactive and easy interface.
Demo,
Updated 30 April 2019
Downloads
527
527
Last week
1
1
