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TIL Scientists hack a computer using just the sound of the CPU. Researchers extract 4096-bit RSA decryption keys from laptop computers in under an hour using a mobile phone placed next to the computer.

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0dkNM TIL that the Battle of Santa Clara, which was decisive in Fidel Castro's rise to power in Cuba, was won by bulldozing an armoured train full of supplies and armoured personnel carriers. Today some of the derailed cars and the bulldozers are on display near the Santa Clara station.
lkK7 TIL Pregnant women who swallow their partner’s semen has a reduced risk of preeclampsia - a potentially dangerous pregnancy complication characterised by high blood pressure.
LQ5rm TIL the final battle of the Revolutionary War was fought in Cuddalore, India between Britain and France. The war had actually formally ended via treaty six months prior, but the news didn’t reach India until June 29, 1783 when a British ship showed up in the midst of the battle waving a white flag.
0jGN TIL that the largest volcano on Earth is named Tamu Massif. Located at the bottom of the Pacific ocean it has a surface area the same as New Mexico making it one of the largest volcanoes in the Solar System.
KOyyJ TIL that the handgun manufacturer Beretta has been making guns since 1526, including Venetian cannons used during the Battle of Lepanto