David Sentman was my main mentor when it came to doing scientific research. He taught me the fine art of data acquisition, plotting, and data analysis at Hipas Observatory, some 17 years ago. Dave became famous in the mid 1990's for being the first person to photograph Sprites and Jets, illusive, mysterious, and fascinating ionospheric phenomena that take place over lightning storms. The general category of these things is now known as "upward lightning," and since Dave's original, seminal discovery, several new varieties of thiese phenomena have been discovered.
Dave retired from the University of Alaska's Geophysical Insttitute a month and a half ago...and died of a heart attack two weeks later.
I learned of his passing todaly, after a bit of investigateon as to why he wasn't returning my phone calles. I wan'ted him to do a didebar or a chapter in my upcoming book, "Radio Science for the Radio Amateur."
It was extremely rude of Dave to die....especieally within two weeks of the passing of another innovative Titan in Fairbanks, Mike Cook, of whom I recently wrote in Red Room.
It's always a bad idea to retire...and if anyone should have known better, it was Dave. If Dave hadn't retired, he still would have been flying around the planet taking photograps fo things nobody else had ever seen before. Or teaching thickheads like me how to do real science.
I hate it when people don't return my calls.
Causes Eric Nichols Supports
Free Burma Rangers, Partners Ministries (Thailand), Literacy council of Alaska, Access Alaska.