› added 8 years ago

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TIL that a “double blind” study means that both the patient AND the researcher don’t know who the control group is and which option the placebo is.

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4DwX TIL during WWII the codeword for “Hitler” was “Crazy white man” for the Comanche Code Talkers
VjO4 TIL that Canadian citizens can send mail to various government offices postage free
Jw71 TIL Charles Darwin & Joseph Hooker started the world’s first terraforming project on Ascension Island in 1850. The project has turned an arid volcanic wasteland into a self sustaining and self reproducing ecosystem made completely of foreign plants from all over the world.
j8E TIL that since 2010, ps3 uses an audio watermark algorithm to detect illegal movie copies. It can survive compression, re-encoding and microphone recording yet it is imperceptible to human hearing.
Lke09 TIL that had a bull not broken loose from a Norse expedition's settlement in North America around 1000 AD, most of what would become America would be speaking Icelandic by now.