Задания 19-25
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Russian inventions: holography
Do you know what holography is? It is a technique ___BASE___ on lasers, which enable 3-D (three-dimensional) images to be made.
In 1962, Soviet physicist Yuri Denisyuk ___COME___ up with the first reflection hologram, also known as the “Denisyuk hologram”.
Now the technology ___USE___ in most holographic displays and it was the first to allow multi-color image reproduction in holograms.
Grey hair
Johnny noticed a change in his mother’s appearance. “Mommy, some of your hairs ___TURN___ grey. Why?” the curious child asked.
The mother tried to use this occasion to teach her child: “It is because of you, dear. Every bad action of ___YOU___ shows on my hair.
It ___TURN___ one my hairs grey!”
The child replied innocently: “Now I know why my grandmother has only grey hair on her head.”
Most children are ___SMART___ than adults think.
