Early Navigation System of acetylene torches on towers and concrete arrows
Beacons, arrows kept pioneer pilots from going astray in Nevada. In the earliest days of commercial aviation, before the advent of radio guidance,...Ttabs in the news - Geology speaker presenting aerial photos of ice age flood features
Looks like our own @Ttabs is in the news... Contributed Ice age lecture Central Washington University is hosting Tom Tabbert, who will be giv...