SpaceX团队完成人类首次载人环绕地球两极飞行任务
SpaceX团队完成人类首次载人围绕地球两极飞行任务，4名宇航员搭乘龙飞船成功降落太平洋。此次任务于上月底从佛罗里达发射升空，历时约4天，宇航员在430公里高空轨道观察探索地球两极。
期间团队开展22项科学实验，包括首次在太空拍摄人体X光图像和尝试种植蘑菇，并通过可穿戴设备监测宇航员健康数据，研究微重力环境对人体影响。
RTHK ｜ SpaceX
📮投稿 ☘️频道 🌸聊天
BY 科技圈🎗在花频道📮
The seemingly negative pandemic effects and resource/product shortages are encouraging and allowing organizations to innovate and change.The news of cash-rich organizations getting ready for the post-Covid growth economy is a sign of more than capital spending plans. Cash provides a cushion for risk-taking and a tool for growth.
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.
在花软件新闻投稿频道 from sa