All posts by Jeff Salmon

SABRE

Rocketry Revolution #4: Air Breathing Rockets

In a Pangaea issue entitled Revolution #3, I laid out the latest three revolutions in rocketry. Reusable rockets like SpaceX and Blue Origin, Air-launched rockets like Stratolaunch and Virgin Orbit, and Drone-launched rockets as exemplified by the Aevum Raven. Each revolution is designed to make space more affordable and accessible. Reusable rockets are obviously more...

ULS and the Search for Yamashita’s Gold

In the waning days of World War II, the Japanese were faced with a dilemma: what to do with the billions in loot taken from Southeast Asia. According to some accounts, faced with US naval dominance in the Pacific, the Japanese could not return the gold, gems, and other valuables to the homeland. Instead the...

Albris

New (and Proposed) Rules for Drones

The FAA has imposed a significant new rule on drone identification and has proposed two new rules that could, when enacted, change the UAS operations landscape. New UAS Marking Rules While UAS identification rules have been the law of the land for some time, last month these rules have been revised. Drones weighing more than...

Why I Heart My Geospatial Job

Above: Marc wears a poncho given to him by his students in Paraguay. xyHt celebrates Valentine’s Day by sharing the love our contributors feel about their geospatial careers. Marc Delgado Loves His Students’ Reactions I love to see and hear my students’ initial reactions when they draw their first map from memory. I’m now in...

Geo Week 2019: Lots and Lots of Lidar

Every time I go to this conference I get the sensation of drinking from a fire hose: so much lidar technology! This year the International LiDAR Mapping Forum (ILMF) became Geo Week with the addition of the ASPRS annual conference and MAPPS winter conference. Here’s a small sample of the wide array of lidar tech...

Crystal Ball: Housing 2019

If you pay any attention to the news you’ve probably heard the drumbeats of the “R” word: the possibility of a recession this year. Because of the ups and downs in the tech, automotive, and telecom sectors, you’re probably starting to get nervous. Then there’s the housing market, which seems to be stalling. Because housing...