[ Freeware, $0.00 - Windows XP/ME/NT/2000/98/CE; Macintosh; Linux; Multiplatform ]
Nautical Almanac 2017 Complete 2017 Nautical Almanac in pdf format complete with monthly star charts. Includes Parallax corrections for the planets which are not normally available.
[ Freeware, $0.00 - Windows 7/Vista/XP/2000/98/CE; Macintosh; Linux; iOS; Other OS ]
NumericalChameleon 1.5.1 The NumericalChameleon converts numbers with a precision of up to 1000 significant figures! It supports more than 2300 units in 78 categories (physical units, radixes, bytes, exchange rates, roman and spoken numbers, color-, uni- and dial codes, etc.)
[ Open Source, $0.00 - Windows XP/ME/NT/2000/98/95; Macintosh; Linux; Multiplatform ]
NetSpot 2.4.623 NetSpot 2 is the only professional app for wireless site survey, Wi-Fi analysis and troubleshooting on Mac OS X. It's FREE and very simple, no need to be a network expert to start using NetSpot today!