Free wavelength software for windows

System Requirements: Java 1.5+

Enhancements: slight correction to speed of light

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.
SkyDome is one of the few electronic skymaps that display the multiwavelength milkyway, or The Radio Sky.
Different types of radiation are visualized via the interface, like 408MHz radiowaves, gamma-, x-rays,.... Each frequency shows different aspects of the universe. SkyDome has maps created by satellites like COBE, EGRET, IUE etc.
The movement of the stars in the constellations during the earths rotation is easy to understand when looking at a distance. This is the aliens view. The alien (you) looks from outside the universe at fixed spot on the planet and sees the nightsky of the observer.
Main features:
- Data from approx. 120000 stars from the Hipparcos catalogue from ESA, 1989. Real-time and fastforward rendered. The users perspective (longitude and latitude) can be changed using the mouse.
- Planetary bodys like Sun, Moon and planet positions are the map.
- The Multi Wavelength Milky way and Radio Sky is rendered at real-time.
- A Radio source from El Arecibo (Puerto Rico) is included and drawn using IFS.
- The Fish-eye view displays the sky from the earths ground (and looking straight up).
- Controllable Light-Transfer-Function The nightsky looks very differently under different conditions. This has to do with the light-pollution and other atmospheric conditions. You can simulate this using keyboard controls. -

ChemtoolBox 1.0.1 the swiss army knife of the lab worker provides users a freeware which includes numerous scientific data very useful in a laboratory. Thanks to its own database, ChemToolBox will easily substitute to the time-consuming use of scientific books (such as Handbooks) or online databases.

ChemToolBox is a freeware desitinated to a broad audience (any level students, Ph.D. or even senior scientists). More precisely, it will be the ideal partner of chemists (organic chemistry, analytical chemistry or polymer chemistry), biologists and biochemists.
In its day-to-day use, ChemToolBox will be a precious help in various fields such as: Properties of solvents, chemistry of solutions, periodic table of elements, biochemistry, spectroscopy, calculations and units
The aim of ChemToolBox is to be a help to the greater number. As a consequence, ChemToolBox is a freeware-type program; so entirely usable and free (certified free of virus and spyware). However, in order to support the improvment of ChemToolBox and the addition of other functionalities, you have the possibility to make a donation.

Major Features:

1. Solvents. For more than 150 usual solvents are gathered the following properties: molar mass, volumic mass, melting point, boiling point, refractive index, CAS number, chemical structure, solubility in water, non-miscibility, relative miscibility, 1H and 13C NMR, mass spectrometry, drying agents and cooling mixtures.
2. Solutions. This important module provides pKa of more than 140 acid/base couples, oxydo-reduction equations and associated potentials of more than 540 RedoX couples, pH areas of numerous colored indicators (acid/base and fluorescence), solubility products of 90 salts, formation constants of 160 complexes, andas well as emission and excitation wavelengths of several hundreds of fluorochroms.
3. Elements. For all elements all the periodic table, ChemToolBox gain you access to the following data : picture, symbol, atomic number, atomic mass, oxydation number, family, state, crystal structure, melting point, boiling point, density, electronegativity, first ionization potential, covalent/metalic/Van der Waals radius, electronic configuration, radioactive isotopes (atomic number, decomposition mode(s), half-life time).
4. Biochemistry. ChemToolBox also has a module related to Biochemistry: natural and synthetic amino acids (code, formula, molar mass, melting point, pKa, pKb, pKc, point isoelectric point, solubility), nitrogen bases (formula, molar mass, pKa, solubility), carbohydrates (symbol, systematic name), fatty acids (systematic name, formula, molar mass, melting point, solubility), SDS-PAGE (separation domain, protein standards, stock solutions, resolving gels, stacking gels, stainning), genetic code.
5. Spectroscopy. This very useful module gives the 1H and 13C NMR chemical shifts of several thousands of organic molecules (from the scientific literature) classified by functionnal groups. Besides, it also contains IR spectroscopy data on charts of in a table of values.
6. Calculations. This is an essential module for your everyday life in the lab. It deals with SI units et derivatives (space/time, mecanical, temperature/heat, electromagnetism, molecular physics, radiations), constants (universal, electromagnetic, atomic/nuclear, physico-chemical, mathematical), useful calculations (amount of substance, concentration, volumic mass, dilution, massic/molar fraction, temperature/pressure) and units conversion (length, surface, volume, mass, temperature, pressure, energy, radioactivity).