Calculates sunrise, sunset, twilights, golden hours, length of day, the path of the sun and moon, moonrise & moonset times and more for any date, anyw …
The What Fish UK Smartphone App has been created as the largest portable sea fish recognition device available in the UK. It enables salt water angler …
Pilot Math Study Guide for Turbine and Airline or Commercial Operations Written by Master CFIs with over 50 years of combined flight instruction exper …