The Chemical Touch
Version history:
Version 1.7:
Date:
Released to Apple for review on March 8, 2010.
Details:
-Reduction potential table included in the detailed info display for the periodic table. Includes 500+ reactions sorted by element.
-Ununbium changed to Copernicium in response to the recent IUPAC recognition.
-Added support for 3 new languages: Danish, Dutch, and Korean.
-Included 1st Ionization Energy as an option for recoloring the periodic table.
-Faster application startup due to changes in data loading procedure.
-Minor graphical improvements.
-Slowed down panel transitions for smoother animations.
-Density of Iridium corrected from 22.65 to 22.56 g/cc. Thanks to Rafa Prados for catching this typo!
-Minor other fixes.
Version 1.6.1:
Date:
Released to Apple for review on October 20, 2009.
Details:
-A series of fixes and small changes (like the classification of Lu and Lr).
Version 1.6:
Date:
Released to Apple for review on July 19, 2009.
Details:
- Inclusion of the nucleobases and associated codon usage tables. Select a nucleobase to view its structure, name, letter abbreviation, mass, and RNA codon table. The codon table is also touch responsive. Selecting a codon will display additional information, such as the amino acid it codes for and usage frequency in the human genome.
- Incorporation of ~1000 of the most common metastable nuclear isotopes. This brings the total number of included isotopes to more than 4200. In addition to their half-life and decay mode, the excitation energies are listed for these metastable variants.
- Expanded language support to include French and Hungarian.
- Several minor bug fixes that you probably won't notice.
Version 1.5.1:
Date:
Released to Apple for review on May 14, 2009.
Details:
- A few typographical errors in the various localizations were corrected
- Minor graphical adjustments
Version 1.5:
Date:
Released to Apple for review on April 21, 2009.
Details:
- Polished up the graphics.
- Added localization for German, Italian, and Spanish. I had help with the German and Italian, but you'll have to make do with my broken Spanish for the time being.
- Added a units preference. You can now set temperatures to Celsius and Fahrenheit, and energies to either eV or kJ/mol.
- Added the ability to color the periodic table by additional properties: specific heat, enthalpy of fusion, enthalpy of vaporization, and covalent radius.
- Adjusted the electron configurations so that you can view shell illustrations and the number of electrons per shell.
- Adjusted the atomic radii so that you can now see the calculated and covalent radii.
- Added a credits button and link to the application website.
- Added a dynamic loading sequence. This should reduce the loading times by a small amount (roughly half of a second in my timings).
- Miscellaneous minor improvements that aren't terribly profound.
Version 1.4:
Date:
Released to Apple for review on February 18, 2009.
Details:
- The detailed information panel was reorganized in a more streamlined fashion.
- Heats of fusion, heats of vaporization, and crystal structures of the solid state forms of the elements were added to the general information panel.
- The limitation on the number of available ionization energies for the elements (formerly 10) was lifted, allowing for inclusion of all available ionization energies.
- The known absorption edges (or inner-shell electron binding energies) were added for the elements. You can switch between displaying these absorption edges and the principle emission lines in the X-Ray information panel.
- All the isotope information for the elements was collected into a single isotope table. This table includes over 3000 natural and synthetic isotopes and is sortable by nuclide number, % abundance, and half-life. Additionally, it contains the primary decay mode for each unstable isotope and actual isotope mass for many of the stable or long-lived isotopes.
- A color panel was added for the amino acids. This panel allows you to recolor and sort the amino acids by Kyte & Doolittle hydropathy value or by whether they are essential, non-essential, or conditionally essential.
- The ability to click through the color key (when activated) to the underlying property buttons on the periodic table was removed. Several users reported this as a bug, and it never made a whole lot of sense from an interface design perspective.
Version 1.3:
Date:
Released to Apple for review on December 12, 2008.
Details:
-Added isotope half-life periods for the elements.
-Added principle x-ray emission energies for the elements.
-Added specific heat capacities for the elements.
-Resorted the common isotopes by decreasing % abundance.
-Added navigation buttons to the detailed element information display so that you can step through the elements.
-Added a more informative startup graphic.
-Added an alert message to the internet button to curtail accidental exiting of the application.
-Touched up the amino acid graphics.
Version 1.2.1:
Date:
Released to Apple for review on November 17, 2008.
Details:
-Corrected a bug that caused the new info. panel to not refresh reliably in some instances.
-Corrected a bug where the saved state of the new info. panel would not restore properly.
-Corrected a data table issue that left out Uranium's mass (and isotope 234).
Version 1.2:
Date:
Released to Apple for review on November 14, 2008.
Details:
-Detailed element information panel added which includes electron configurations, ionization energies, and common isotopes with their percent abundances.
-Atomic weights updated to the full precision 2005 IUPAC recommended values.
-Added the ability to display the amino acids with either the 1-letter or 3-letter abbreviations.
-Added the ability to sort the amino acids alphabetically, by type, or by mass.
-Moved the font selection buttons to a reverse side information panel.
-Decreased the application size.
-In general, these changes make it easier for me to add additional properties and capabilities to future versions.
Version 1.1.1:
Date:
Released to Apple for review on September 25, 2008.
Details:
-Fixed incorrect color labeling of the Lanthanides and Actinides.
-Fixed a possible memory leak.
Version 1.1:
Date:
Released to Apple for review on September 4, 2008.
Details:
-Added accelerometer support to allow the application to rotate to the other landscape view.
-Added a color label button to display what the colors mean.
-Added the RNA codons for the amino acids.
Version 1.0:
Date:
Released to Apple for review on August 4, 2008.
Details:
Initial release.
