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When was ketchup invented? Detailed answer

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Directory / Big encyclopedia. Questions for quiz and self-education

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When was ketchup invented?

Both a very long time ago and relatively recently. Around 300 BC e. in ancient Rome they used sour sauce. It included vinegar, olive oil, peppers and sardines. But, of course, there were no tomatoes native to the American continent. They first appeared in the composition of the sauce only in 1790, when in England they were convinced that the fiery red overseas vegetable was not poisonous.

Author: Mendeleev V.A.

 Random interesting fact from the Great Encyclopedia:

Who came up with the idea of ​​using a countdown to launch space rockets?

The countdown that invariably accompanies the launch of space rockets was not invented by scientists or astronauts, but by filmmakers. The countdown was first shown in the 1929 German film Woman in the Moon to build up tension. Subsequently, when launching real rockets, the designers simply adopted this technique.

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Machine for thinning flowers in gardens 02.05.2024

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Random news from the Archive

Tonometer with smartphone 28.11.2013

Nihon University specialists have developed a miniature blood pressure monitor, devoid of the usual cuff. The device can be used in conjunction with a smartphone.

The details of the development have not yet been disclosed, but it is known that the measurement is based on the analysis of the reflected light signal. To measure pressure, a finger is inserted into a small device with an LED, a phototransistor, and signal processing circuits inside.

Connection to a smartphone is carried out via Bluetooth 4.0. The measurement results are displayed on the smartphone screen by an application for Android OS. The program shows the average and instantaneous values ​​of systolic and diastolic pressure, heart rate and pulse waveform.

The developers expect to establish the production and sale of sensors in the first half of 2014.

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