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TIL despite their rivalry, Tesla & Edison worked together. In 1884 they clashed over direct current (DC) vs. alternating current (AC). Edison promoted DC, while Tesla AC, which became the standard. Edison offered Tesla $50,000 to improve his DC generators but reneged on the deal.

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lXAN TIL that Seattle is planning to build a new city park filled with hundreds of edible plants - such as fruit trees, vegetables plants, herbs, etc… Free to “anyone and everyone.” If successful, it will be the first “food forest” of the nation.
wL6YJ TIL of Salt-Rising Bread: a bread which replaces yeast with Clostridium Perfringens, a bacteria that is the 3rd most common cause of food poisoning in the US.
W6aN TIL half the nitrogen in your body derives from a synthetic process, invented by two Chemists in 1909. Their discovery is keeping nearly half of Earth’s population alive today.
OGZRX TIL about "Wa", a Japanese concept usually translated into English as "harmony". It implies a peaceful unity and conformity within a social group in which members prefer the continuation of a harmonious community over their personal interests. The kanji character "wa" is also a name for Japan.
vLyK TIL we SURF the internet because of an image on a mouse pad. Jean Armour Polly wrote an article about the internet in ‘92 and was looking for a metaphor to describe how much fun and, at the same time, challenging it was to use the internet when she looked at her mouse pad showing a surfer on a wave.