南达科他州加里附近 FF3 级暴力龙卷风
2025年6月29日南达科他州加里附近一场惊心动魄的EF3级龙卷风袭击。
这场龙卷风的最高风速达到每小时136-165英里，席卷了乡村地区，摧毁了一座农舍，导致躲在地下室的两人受伤，并对建筑物、车辆和农作物造成了大面积损坏。
漏斗云在黑暗的天空中形成，在有人居住的房屋和停放的汽车附近危险地旋转，然后逐渐减弱并消散在绿色的田野上空——这清楚地提醒人们大自然的破坏力，这一点已得到国家气象局调查和当地报道的证实。由专业风暴追逐者斯蒂芬·琼斯拍摄。#科普 #宇宙 #美国#龙卷风 #天文 #狂风暴雨加冰雹 #暴雨 #狂风暴雨电闪雷鸣 #人类与自然灾害
BY 小红书一瞥
Mr. Durov launched Telegram in late 2013 with his brother, Nikolai, just months before he was pushed out of VK, the Russian social-media platform he founded. Mr. Durov pitched his new app—funded with the proceeds from the VK sale—less as a business than as a way for people to send messages while avoiding government surveillance and censorship.
Telegram’s stand out feature is its encryption scheme that keeps messages and media secure in transit. The scheme is known as MTProto and is based on 256-bit AES encryption, RSA encryption, and Diffie-Hellman key exchange. The result of this complicated and technical-sounding jargon? A messaging service that claims to keep your data safe.Why do we say claims? When dealing with security, you always want to leave room for scrutiny, and a few cryptography experts have criticized the system. Overall, any level of encryption is better than none, but a level of discretion should always be observed with any online connected system, even Telegram.
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