› added 10 years ago

136

TIL The microscopic structures of dried human tears differ according to the type of crying:the molecular structure of tears of grief are different from tears of joy.

Read more smithsonianmag.com

via reddit.com

vDXB TIL The Rolling Stones song ’(I Can’t Get No) Satisfaction’ was initially only played on pirate radio stations in the UK because the lyrics were considered too sexually suggestive.
RPVQ TIL that before air-dropped bombs were used in WWI, solid-cast darts called Flechettes were dropped in large batches from British and French planes over enemy trenches, which were capable of piercing helmets and skulls
R7yXl TIL that Sir Isaac Newton invented the first color wheel. Before his experiments, the better notion was that all colors were mixtures of Red (most light) and Blue (most darkness). Newton thought it was BS so he did light mixing experiments.
wZv8 TIL that the first Courage The Cowardly Dog short was nominated for an Oscar. It was called The Chicken From Outer Space.
16xb4 TIL a study published in 2017 found that children who were breastfed for two years or longer had a 2.4 times higher risk of having severe cavities, compared to kids who were breastfed for less than a year.