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A hodograph is a diagram that gives a vectorial visual representation of the movement of a body or a fluid. It is the locus of one end of a variable vector, with the other end fixed. [1] The position of any plotted data on such a diagram is proportional to the velocity of the moving particle. [2] It is also called a velocity diagram.
WhatsApp will now let you record and send video clips directly in the messaging app, the Meta-owned platform announced this week. The instant video messages can be up to 60 seconds long, and are ...
For some features: secret chats, [116] voice and video calls, [117] and voice chats in groups [117] No No No Tencent QQ: No [118] [119] No No No No Threema: No A valid phone number or email address is not required for registration & login. However, the mobile app serves as the primary device, due to the end-to-end encryption architecture. [120 ...
WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta. [13] It allows users to send text, voice messages and video messages, [14] make voice and video calls, and share images, documents, user locations, and other content.
WhatsApp announces Channels, a feature that allows one-to-many communication for updates, and no defined limit for number of followers. Channels are not end-to-end encrypted, unlike messages in groups or chats. [45] [46] 2023 August Product WhatsApp relaunches its app for Apple computers, adding audio and video group calling. [47] 2023 September
Shock polar in the pressure ratio-flow deflection angle plane for a Mach number of 1.8 and a specific heat ratio 1.4. The minimum angle, , which an oblique shock can have is the Mach angle = (/), where is the initial Mach number before the shock and the greatest angle corresponds to a normal shock.
Ethernet interfaces are also included in the modern systems which are specially designed to link calls that are passed via VoIP. [36] E.164 is a global numbering standard for both the PSTN and public land mobile network (PLMN). Most VoIP implementations support E.164 to allow calls to be routed to and from VoIP subscribers and the PSTN/PLMN. [37]
Wi-Fi calling, also called VoWiFi, [1] refers to mobile phone voice calls and data that are made over IP networks using Wi-Fi, instead of the cell towers provided by cellular networks. [2] Using this feature, compatible handsets are able to route regular cellular calls through a wireless LAN (Wi-Fi) network with broadband Internet , while ...