Heartbroken by the news of Alexei @navalny's assassination. The tragedy that my family experienced in Cuba 11 years ago is repeating itself in #Russia because these dictators act with impunity. The international community must act to protect José Daniel Ferrer in #Cuba and the political prisoners who are in great danger from Siberia to Havana, and from Minsk to Caracas. My heart goes out to Navalny's family and all Russians fighting for democracy.
🧵para español
“I have to go back.” Speaking just before he returned to Russia, Navalny told me: “I don’t think that I can have such a privilege of being safe in Russia, but I have to go back, because I don’t want this group of killers [to] exist in Russia. I don’t want Putin ruling Russia.”
Visualisation of irrational nature of π. Its decimal representation is infinite and non-repeating, distinguishing it sharply from rational numbers, which either terminate or repeat in their decimal form.