Spiral staircase software: For exploring the Prime Number Spiral, 48-piece jigsaw puzzle of some spiral stairs, Tetris clone with 3D playing field and more.

	Prime Number Spiral 7.42 Hermetic Systems Released: Sep 02, 2006   Rating: Not rated The Prime Number Spiral (a.k.a. the Ulam Spiral) is formed by marking the prime numbers in a spiral arrangement of the natural numbers. This is software is for exploring the Prime Number Spiral. Platforms:    Education Mathematics Type: Shareware Cost: $15.00 US Size: 1920 K Download: www.hermetic.ch Keywords: Prime number spiral, lottery, primes, dialer, Ulam spiral

	Apophenia 1 Apophenia Released: Nov 30, 1999   Rating: Not rated Prime sprial plotting software for square (Ulam) and related polygon prime number spirals. Allows multiple prime generating quadratic equations to be displayed simultaneously. Plot data and image files can be saved to disk for further analysis. Demo version is limited to prime spirals based on the square and up to two prime generating quadratic equations. Platforms:    Education Mathematics Type: Shareware Cost: $15.00 US Size: 256 K Download: www.apophenia.freeuk.com Keywords: Ulam, game, prime number, free, polygon prime spiral

	MITCalc - Torsion Springs 1.13 MITCalc Released: Nov 18, 2005   Rating: Not rated The calculation is intended for the purposes of geometric and strength designs of spiral cylindrical torsion springs made of wires and rods in circular sections, loaded with a static or cyclic loading. Application is developed in MS Excel, is multi-language and supports Imperial and Metric units. Is based on ANSI, ISO and DIN standards and support many 2D and 3D CAD systems. Platforms:    Design & Photo 3D Modeling & CAD Type: Shareware Cost: $19.00 US Size: 2103 K Download: www.mitcalc.com Keywords: DIN 2088, 1, dynamic strength check, Spring, CAD

	3D SurfTris 1.0 3D Surf Games Released: Jan 10, 2004   Rating: Not rated SurfTris is a Tetris clone with a new twist. Instead of 2D plane, playing field is spread upon a 3D surface. There are five different surfaces to choose from: three closed surfaces - Cylinder, Cone, and Hyperboloid and two twisted planes - C-Spiral and O-Spiral. Game features: - Unique challenges of Twisted and Diversity Modes - Ability to use MP3 and MIDI files of gamer’s choice as game soundtrack - High Score tracking for every surface. Platforms:    Games Other Type: Shareware Cost: $19.95 US Size: 8136 K Download: repaintit.com Keywords: games, arcade, free, puzzle, Fun

	stairs48.exe 1.0 JisawADay.com Released: Jul 12, 2005   Rating: Not rated Beautiful 48-pc jigsaw puzzle of a set of spiral stairs looking up to the sky. Platforms:    Games Puzzle Type: Freeware Cost: $0.00 US Size: 361 K Download: www.jigsawaday.com Keywords: Jigsaw puzzle, game, daily jigsaw puzzle, games, ganes

	Hypnodisk 1.4 Onwijs Released: Jul 19, 2002   Rating: 4.5/5 (2 votes) Semi-psychedelic screensaver takes your screen for a spin. The screen is filled with rotating tiles that slowly start to spiral. You can set speed, frequency, size and separate colour channels. New in v1.4 is the One big disk option. Platforms:    Desktop Enhancements Screen Savers: Other Type: Freeware Cost: $0.00 US Size: 130 K Download: www.xs4all.nl Keywords: download screensaver, psychedelic, lights, Hypnodisk

	Gravit 0.4.2 Gerald Kaszuba Released: May 31, 2005   Rating: 5/5 (1 votes) Gravit is a gravity simulator which runs under Linux, Windows and Mac OS X. It's released under the GNU General Public License which makes it free. It uses Newtonian physics using the Barnes-Hut N-body algorithm. Although the main goal of Gravit is to be as accurate as possible, it also creates beautiful looking gravity patterns. Platforms:    Education Science Type: Freeware Cost: $0.00 US Size: 830 K Download: gravit.slowchop.com Keywords: OpenGL, games, GL_ARB_point_parameters, GL_ARB_point_sprite, lua

	Mystify Flashing Screensaver 1.0.1 ScreenSavers Wizard Released: Jun 29, 2008   Rating: Not rated Enjoy infinite light show on your screen. The movements of the shine balls that flash and grow from the center create lovely chaos on your screen that can mystify your mind. The spiral rotation in the background just contributes. This simple 3D animation makes great cyber look and feel of Mystify Flashing ScreenSaver. Platforms:    Desktop Enhancements Screen Savers: Other Type: Shareware Cost: $9.95 US Size: 2506 K Download: www.screensaverswizard.com Keywords: Mystify flashing screensaver, 3D screensaver, mystify, saver, desktop

	MITCalc - Springs - 15 types 1.10 MITCalc Released: Jun 29, 2006   Rating: Not rated The calculation is intended for the purposes of geometric and strength designs of metal springs of various types and designs (15 types), subjected to static or cyclic loads. Application is developed in MS Excel, is multi-language and supports Imperial and Metric units. Is based on ANSI, ISO and DIN standards. Platforms:    Design & Photo 3D Modeling & CAD Type: Shareware Cost: $24.00 US Size: 1956 K Download: www.mitcalc.com Keywords: Spiral springs, belleville, torsion bar springs, saver, EN 13906-1

	Word Search Wizard 1.35 Sirkit Released: May 01, 2009   Rating: Not rated A fantastic resource of word search puzzles. Create a wide range of different styles: squares, circles, lines, triangles and spirals. Control the words: straight, corner, spiral, block and random. Straight forward WYSIWYG puzzle design. Play with other people on screen, or print a different puzzle for each group member. Comes with over 2000 word list for schools and for fun. Platforms:    Education Teaching Tools Type: Shareware Cost: $29.00 US Size: 16569 K Download: www.wordsearchwizard.com Keywords: School, messenger, word games, convert, playable