Результаты (
английский) 2:
[копия]Скопировано!
The first task is currently being solved by using high-tech materials such as pure quartz glass. The second task is solved with the help of the law of Optics described above.<br>Due to the effect of full reflection of light, it is possible to force a beam "walk around" inside a limited closed environment, making a path from the source of the signal to its receiver. However, this requires two environments with different densities. Most often used in their quality quartz glass of different densities. Wave allowed in a denser environment, limited less dense.
переводится, пожалуйста, подождите..
