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Bitragunta Harshitha

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340. Sai Ram 4
341. Никола Ристић 4
342. Bitragunta Harshitha 4
343. Daniel Petta 4
344. James Jefferson 4
last 3 solved tasks
Find the longest word of 6 words hidden in the picture.
There are 6 words hidden in the picture, can you find 1 of 6?
Which number should replace the question mark?

Vacuum tube

In 1906, Dr. Lee DeForest (26 Aug 1873 - 30 Jun 1961), one of the “fathers of radio,'' announced his three-element electrical vacuum tube (now known as a triode) to a meeting of the American Institute of Electrical Engineers He had discovered that when a mesh, or grid, of wire was placed between the filament and collector “plate” in a diode tube (first made by J. Ambrose Fleming, 1904), a large voltage-amplifying effect could be produced. DeForest patented this vacuum tube on 15 Jan 1907. The ability of this tube to amplifiy weak signals was an invention as great as radio itself, because it made long-distance communication possible.[Image: early DeForest Audion]

Benefits of the Revival

After the revival had concluded, the three pastors were discussing the results with one another.

The Methodist minister said, "The revival worked out great for us! We gained 4 new families."

The Baptist preacher said, "We did better than that! We gained 6 new families."

The Presbyterian pastor said, "Well, we did even better than that! We got rid of our 10 biggest trouble makers!"

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