Abstract: A method in a computing system to facilitate a multi-player game by selecting a group of computing devices operated by respective users, distributing interactive content that includes one or more questions with a set of selectable answers to the group of computing devices, receiving a response to the one or more questions, determining a score based on whether the response is a correct response and a number of computing devices in the group from which the correct response was received, determining a respective ranking based at least on the corresponding score, and providing the respective ranking to each computing device in the group.

Abstract: The invention provides the following items: A method of interactive providing a music composition to user; A method of using 3D sound for orientation of a user on the remote target; A method of providing a computer game to play blindfold; The method of providing to a user the interactive applications with unlimited locomotion. The inventions are based on ability of human binaural hearing and possibility to provide 3D sound to headphones to user from objects in virtual space. User is immersing into virtual space represented by sound objects. Using the user position and orientation in virtual space and position of every sound objects in virtual space, it is possible calculate and provide to a left and a right user's ears 3D sound using Head-Related Transfer Function. With such 3D sound user is able to localize the sound source position and interact with the sound object even blindfold.

Abstract: The invention provides the following items: A method of interactive providing a music composition to user; A method of using 3D sound for orientation of a user on the remote target; A method of providing a computer game to play blindfold; The method of providing to a user the interactive applications with unlimited locomotion. The inventions are based on ability of human binaural hearing and possibility to provide 3D sound to headphones to user from objects in virtual space. User is immersing into virtual space represented by sound objects. Using the user position and orientation in virtual space and position of every sound objects in virtual space, it is possible calculate and provide to a left and a right user's ears 3D sound using Head-Related Transfer Function. With such 3D sound user is able to localize the sound source position and interact with the sound object even blindfold.

Abstract: A method of presenting the user with a picture from the screen of a smart phone or tablet at a wide angle of view, consisting in that fixing a smart phone or tablet on the head in front of user's eyes, mounting the smart phone screen in front of the user's eyes to the line of sight, providing an optical means for obtaining an image sharpness, displaying an image which is the one selected from the group consisting images, videos, virtual space, or other applications. A method of providing sound to each of the user's ears in a virtual reality application, consisting in that mounting stereo headphones on the user's head, calculating a sound level provided for each of the user's ears so as the sound propagated and attenuated in a real space with the corresponding position and orientation of the user in regard to the sound source.