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TIL of the 8-minute phone call ☎️

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x6e40 TIL that depleted Uranium is used to create projectiles capable of puncturing tank shells and armor. This is not only because it is extremely dense, but also because upon impact, a uranium shell will continually sharpen itself and retain its shape.
8e7VK TIL that in the 7th century BC, lawmaker Charondas forbade anyone from bringing in weapons to the assembly under penalty of death. One day, seeking to defeat some brigands in the hills, he brought a knife to the assembly. In order to uphold his own law, he killed himself.
rRZeW TIL Microsoft invested $150M in Apple during its decline in the late 90s, largely to combat anti-trust regulations. It saved Apple, and Microsoft sold off its shares when their deal was over, in 2003. Had they held on, the shares would be worth over $20B today
kOv0B TIL German art student hand-illuminated Silmarillion in the style of medieval monastery book
GAww1 TIL that in 1926, Nikola Tesla predicted modern cell phones. Tesla described a future "when wireless is perfectly applied the whole earth" in a way that allows humans "to communicate with one another instantly irrespective of distance" with the clarity of a face-to-face meeting using a device.