› added 7 months ago

28

TIL that Xerox and Canon developed a digital watermark which color laser printers produce on every page that identifies the specific printer that was used to print the document in case it is used in a crime.

Read more wikipedia.org

via reddit.com

M7yN0 TIL that there is a company converting (rebuilding?) DC-3s to turboprops
bNRN TIL that at least about 100 North Korean defectors to South Korea, unable to cope with the new society, isolation, and lack of job prospects, have went back to North Korea.
N778M TIL the grandson of the inventor of Spam is a well known session guitarist who played on Johnny Cash's cover of Hurt. His name is Smokey Hormel.
ZjnQ TIL that the smell of coffee reduces the stress caused by sleep deprivation and damage caused by stress
LkB1V TIL that only 10% of wine 'experts' can consistently rate the wine from the same bottle in the same way, and they aren't consistent the next year. After analysing results across wine competitions in california, medals were found to be distributed at random.