Bill Gates tells how India wiped out polio
https://youtu.be/MBchdYVDvDw From Bill Gates's blog: https://www.gatesnotes.com/Health/Meeting-the-Musahar
How sound waves from stars tell scientists their stories
http://blogs.discovermagazine.com/d-brief/2018/11/27/we-can-now-look-inside-of-stars-with-artificial-intelligence-and-sound-waves/#.XWmPqZNKjUI
New freeze-dried polio vaccine can stand the heat
"[Polio] still lurks in developing countries because vaccine storage and transport requires refrigeration. Now, scientists find freeze-drying a polio vaccine keeps it stable for as long as four weeks even in hot temperatures. The stability could enable vaccine distribution that…
Why NASA wants you to take pictures of trees
"NASA would like you to take a picture of a tree, please. The space agency’s ICESat-2 satellite estimates the height of trees from space, and NASA has created a new tool for citizen scientists that can help check those measurements…
APG develops drones that change color to indicate chemical threats
"ABERDEEN PROVING GROUND, Md. -- A plume of unidentified smoke fills the air ahead of ground units on the battlefield. Immediately, a gray drone deploys, navigating the atmosphere to investigate the plume. As the drone returns, it's no longer gray.…