You are browsing the archive for 21 December 2017 - Dan's Wild Wild Science Journal.
21 December 2017
Rare Cloud Display Across Ohio and Indiana Thursday
You see those strange holes in the clouds across Indiana and Ohio? These are fallstreak holes or “hole punch” clouds, and they happen when aircraft fly through clouds of supercooled water. These clouds are well below 0° C, but the cloud droplets are still liquid (water will not always freeze into crystals of ice until the temperature reaches about -40° F/-40° C). If a few ice crystals are introduced, then a rapid …
The Cosmos Lost Carl Sagan 21 Years Ago Today
His books live on. They inspire new generations of scientists and will for decades to come. If you have not read Demon-Haunted World, then buy it. Buy two more copies and give them to a smart young student for Christmas. Just doing that may change their world. It just might change everyone’s world.
Dan Satterfield has worked as an on air meteorologist for 32 years in Oklahoma, Florida and Alabama. Forecasting weather is Dan's job, but all of Earth Science is his passion. This journal is where Dan writes about things he has too little time for on air. Dan blogs about peer-reviewed Earth science for Junior High level audiences and up.