› added 9 years ago

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TIL it’s impossible to smoothly scan your eyes from left to right (or vice versa), except if you’re tracking a moving object. Otherwise, your vision jumps from focus point to focus point, even while reading.

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EgPed TIL that the reason crystals and rocks feel cold to the touch is that they have "high thermal inertia". In other words, a rock that sits on a table in a 24°C room will want to take in heat from our 36.8°C bodies,.. and that feels cold. Once it has gained that 12.8°C it does not feel cold any more.
MeldV TIL: Many Native Americans consider the national holiday of Thanksgiving Day as a reminder of the genocide and continued suffering of the Native American peoples. Participants in the National Day of Mourning honor Native ancestors and the struggles of Native peoples to survive today.
1aVAO TIL that the tragedy of the Library of Alexandria burning down and "setting knowledge back centuries" is a myth. In reality, the Library slowly declined over many years and by its end, most major cities had similar libraries with many of the same works.
YvEx TIL: In Seattle Washington there is a ghost coke machine still in use that no one has ever seen filled but always has pop and the price has gone up from 55 cents to 75 cents over the years
Ev6w TIL that usury, the practice of giving loans that unfairly enrich the lender (e.g., interest), is condemned in most religious texts, including those of Buddhism, Christianity, Islam, Judaism, and others.