Робот-геккон залезает на стены благодаря технологии, имитирующей структуру лап настоящего геккона. На лапах робота применяются специальные материалы с наноструктурами, создающими Ван-дер-Ваальсовы силы, которые обеспечивают сцепление с гладкими и шероховатыми поверхностями. Такая адгезия (прилипание) позволяет роботу удерживаться и передвигаться по вертикальным стенам и даже потолкам.
Робот-геккон залезает на стены благодаря технологии, имитирующей структуру лап настоящего геккона. На лапах робота применяются специальные материалы с наноструктурами, создающими Ван-дер-Ваальсовы силы, которые обеспечивают сцепление с гладкими и шероховатыми поверхностями. Такая адгезия (прилипание) позволяет роботу удерживаться и передвигаться по вертикальным стенам и даже потолкам.
But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat. Channels are not fully encrypted, end-to-end. All communications on a Telegram channel can be seen by anyone on the channel and are also visible to Telegram. Telegram may be asked by a government to hand over the communications from a channel. Telegram has a history of standing up to Russian government requests for data, but how comfortable you are relying on that history to predict future behavior is up to you. Because Telegram has this data, it may also be stolen by hackers or leaked by an internal employee. Groups are also not fully encrypted, end-to-end. This includes private groups. Private groups cannot be seen by other Telegram users, but Telegram itself can see the groups and all of the communications that you have in them. All of the same risks and warnings about channels can be applied to groups. Update March 8, 2022: EFF has clarified that Channels and Groups are not fully encrypted, end-to-end, updated our post to link to Telegram’s FAQ for Cloud and Secret chats, updated to clarify that auto-delete is available for group and channel admins, and added some additional links. Also in the latest update is the ability for users to create a unique @username from the Settings page, providing others with an easy way to contact them via Search or their t.me/username link without sharing their phone number.
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