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Astronomy app for iPhone, iPad and iPod Touch that displays more than 120,000 stars and 220 star clusters and galaxies. It also includes information about the planets and moons of our solar system. Enhanced Plus and Pro versions are also available.

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Software for 3D mesh editing and additive manufacturing. Creates watertight objects and can repair damaged linkages. Offers tools for the implementation of CAD models, including part manufacture. Supports STL, X3D, WRL, GTS, CLI, SLI, SLC, SSL, CLS and G-Code formats. Version for commercial use offers extra modules. Fast and secure download from The H

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Emulates the HP 48 scientific calculator.

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Mobile scientific calculator for Symbian devices with touchscreen; complies with the "order of operation rule" and offers all the usual standard functions such as trigonometric functions or logarithms. Fast and secure download from The H

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Mobile Android implementation of Google Sky, the online star map. This augmented reality application uses the accelerometer, GPS and compass functions to display stars, constellations, planets and galaxies in the visual field of the mobile phone camera.

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Virtual star map for Android smartphones. After pointing the mobile’s camera towards the sky, the app displays those constellations in line of sight. Calculates the current position of all stars and planets visible from Earth in real time by using GPS technology and 3D Universe.

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Moon atlas with a high resolution 'Clementine' photographic texture as well as numerous photographs, graphics, topographic maps and scientific information about the surface of the moon.

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Simulates 12 models of the cipher machine Enigma, as well as the Enigma Uhr on an HTML site with Javascript. Offers a total of 42 rotors, ten reflectors, three stators, two extra wheels and two drive mechanisms, which can be put in any combination. Includes the same adjustment capabilities as the original, switchable plugboard, with auto-verification and a monitor displaying the signal path.

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Augmented reality app for Android smartphones that displays which satellites are currently in orbit above the user. Simply point the camera upwards and all the satellites in that area of the sky are shown on the screen.

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Collection of mini applications and charts for electronics enthusiasts.

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Graphical, programmable algebra system with exact and symbolic data types; can also be used online.

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Uses the colour code to calculate the value of resistors, capacitors, diodes and inductors. Separate Pocket Version available for Windows Mobile. Fast and secure download from The H

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Line- and expression-based calculator with integrated unit and currency converters for converting different dimensions and currencies. It can, for example, also solve simple equations; the convertors are also available individually, with the names "handyConverter" and "handyCurrency", in Google Play.

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Program to transform a Java-enabled phone into a function plotter and calculator, with formula memory for up to 20 functions. The phone can calculate derivatives as formulas and map up to two derivatives. It can also display up to three functions simultaneously and add them together graphically.

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First aid information for medical emergencies. Refreshes knowledge and is available for use at any time. Suitable mobile phones are listed on the website. The tool is available as Java Mobile, Flash Lite, iPhone and Windows Mobile version (for PDA, Pocket PC or smartphone).

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