Об­ра­зуй­те от слова INVENT од­но­ко­рен­ное слово так, чтобы оно грам­ма­ти­че­ски и лек­си­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

Pavel Yablochkov was a Russian electrical engineer and businessman. He was also the __________________ of the Yablochkov candle  — a type of electric carbon arc lamp  — and the transformer. A Yablochkov candle was much easier to use than other kinds of lamps.

Об­ра­зуй­те от слова DEMONSTRATE од­но­ко­рен­ное слово так, чтобы оно грам­ма­ти­че­ски и лек­си­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

The first public use of a Yablochkov candle took place in Paris in 1877. The Paris Exposition of 1878 gave Yablochkov a great opportunity to make a spectacular __________________ of his candle to the world audience.

Об­ра­зуй­те от слова QUICK од­но­ко­рен­ное слово так, чтобы оно грам­ма­ти­че­ски и лек­си­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

They __________________ set up companies licensing Yablochkov’s patents. From the mid-⁠1880s, Yablochkov started to devote more of his time to the problems of generating electrical energy.

Об­ра­зуй­те от слова SCIENCE од­но­ко­рен­ное слово так, чтобы оно грам­ма­ти­че­ски и лек­си­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

Many of Yablochkov’s further inventions were much ahead of his time. Modern __________________ still use his ideas in their work.