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TIL: mRNA was first tested in the 1990s, but a 2005 breakthrough made it stable for medical use.Early attempts failed as mRNA degraded too quickly. In 2005, scientists developed lipid nanoparticles (LNPs) to protect it, enabling new medical applications

Read more publichealth.jhu.edu

via reddit.com

Y7OPr TIL that there are two sequels to the novel “Little Women”; the first is called “Little Men”, and the second is called “Jo’s Boys”. Both novels focus on the two sons of the character of Jo from “Little Women”.
9Y6gp TIL despite being the oldest of the 'golden girls', Betty White has outlived her co-stars
N7VlQ TIL Fresh snow absorbs sound, lowering ambient noise over a landscape because the trapped air between snowflakes attenuates vibration. That´s why it gets so quite when it snows.
rnm1 TIL that the Movie “Paranormal Activity” cost less than $15,000 to make but grossed over $193,000,000.
BrA6x TIL Unlike male chimpanzees, male bonobos do not experience a strong rise in testosterone during puberty