Einstein's General Theory of Relativity demonstrates that a large mass can deform spacetime and bend the path of light. So, a very massive object, such as a cluster of galaxies can act as a gravitational lens. With this program, one can draw images to see the effect of gravitational lensing. You can easily test the effects of several parameters by changing them and redrawing the image....

Set daily time limits on the Internet, when the time expires, users can earn more time by answering a (UK national curriculum based) questionnaire. You decide how much time to award per question. + lots More. Visit our web site for a more detailed list of features. Free trial version available. [ Parental Control, Restrict Internet Access, Time Limit, Educational Software, Parent Control ]....

Creating brilliant graphics is child's play. Design your grid, then play! Flip, roll, colorize - wow, that's cool! Explode, zoom, boost - that's stunning! You'll be amazed! Whether you're 4 or 74, Grid Magic will bring out the Picasso in you! Along with the fun, there's valuable learning. Grid Magic is a serious educational tool built by IT and Education professionals, designed to help children master computer, math and thinking skills....

GS Typing Tutor is a powerful educational software which will help you to learn touch typing or develop your typing speed through an amusing, easy, and effective way. Now, it supports 24 keyboard layouts (including US, UK, Dvorak and so on) and two typing games....

A Small Sample of GuitarArpeggio Patterns in Tablature Notation (the full version contains 500 patterns). All of the patterns, and methods in this arsenal have been meticulously created and organized to give you the best possible learning experience. EASY TO USE SOFTWARE: 1. Scan Through Each Arpeggio One by One 2. Go Directly to the Individual Arpeggio You Want to Focus on 3. Listen to an Arpeggio with the Simple Click of the Mouse...

Find chords (more then 3000), select different type and mode play of guitar for playing chords (more then 72000 MIDI files) and songs, songbook.When a song is playing you see words song's and hear melody.You can use the metronome and MIDI Player for training.The Metronome Pro gives you a powerful tool for learning to play "in time, all the time".The Metronome Pro may be programmed for reproduction of melodies.For programming can use any note and any instrument.Midi Player give you opportunity see how a song is playing.Create and save real music of solo parties.Guitar Chord Library also include a Chord Construction.You will be able to reconstruct how a chord is formed.Different mode of tuning guitar - use one note or more then one note or use any chord.You can see notes and TAB notation of any chords.Use Finder you can quickly find all positions of the note on the guitar, or define the notes using position on the guitar....

The Ultimate Scale, Chord and Arpeggio Reference for Guitarists. Guitar Power is an interactive learning system. Quickly and easily use scales, chords and arpeggios. Any style or level - learn the secrets of the pros and play like your guitar heroes. Guitar Power will teach you: 3000+ chord voicings, 500+ scales, 550+ arpeggios, triad inversions, notes on the fretboard, how to name your own chords. Free 30-day trial....

If you want to master guitar scales, modes, and improvisation... on all chords, in all keys, all over the fretboard... effortlessly and without hesitation... then the GUITAR SCALES METHOD multimedia course will make your dream come true! This interactive software is so revolutionary and effective that you only need A FEW WEEKS (not years!) of training to learn all scales in all keys FOR EVER and improvise freely on any chord. Free trial version....

A wonderful FREE program for Kids to learn English Word Building. Hang Word 2.0 is a Hang Man type game for teaching children English Words and Spelling. The aim of the game is to create the given word before the guesses runs out, or else the Man becomes hanged. Features include 9,000 Word English Dictionary word-database and State of the Art Graphics. The program is easy to use with a Windows based interface specifically designed for children....

A real computer game (with points,lives, Hi-Score list etc.) that teaches you to recognize music notes by ear. Easy to customize, Happy Note! Play It By Ear lets you learn at your own pace. It requires no previous knowledge of music. Its user-friendly interface allows you to start playing and learning right away, and its "Cartoons" option makes it even more fun. It features the same Learning menu as the game Happy Note! Treble and Bass Clef....