## Tools

### Software

- SoFiA – The H i Source Finding Application
- BusyFit – Busy Function fitting software
- FITSviewer – Web application for viewing FITS data cubes (demo)

### Data

- Sculptor group galaxies
- High-velocity clouds

### Observing and Data Reduction

- Reducing ATCA data with AIPS and Miriad
- Reducing WSRT data with AIPS
- Reducing WSRT data with Miriad
- The inband frequency switching method at Effelsberg (in German)
- Additional hints for AIPS

### Theory

- Useful equations for radio astronomy
- Redshift and velocity
- Spherical geometry
- Conversion of units
- Conversion of coordinates
- Mathematical functions
- H i mass function
- The virial theorem (in German)
- Radial mass distribution and column density of gas clouds (in German)

### Calculators & Tools

- Angular separation of two sources in the sky
- Interactive WALLABY sky coverage map
- Online tool for rendering mathematical equations using LaTeX

### Computers and Programming

- Random numbers
- Schematic overview of markup languages (HTML and LATEX)

### Miscellaneous

- Radio telescopes of the world
- An all-sky map of high-velocity clouds based on the HI4PI Survey
- The current sky above Perth, Australia