Riddle

55.762354, 37.682043 (OpenStreetMap, Google Maps, Yandex Maps)

Nowadays nobody would drink such water. It is definitely dangerous! But 90 years ago you could buy a device to make such water at home. Name the property and take a prefix. Find house 22 on this street. You need a plaque devoted to a scientist.
How many electrons are there on the plaque?

Отгадка

In 1920s you could buy a radium ore revigator to make water radioactive. The implied street is Ulitsa Radio.

Ответ: 5


5

Входил в трассы категорий Лев & Единорог

Статистика взятия: 121/151 (80%).

По категориям:

  • Лев & Единорог: 121/151 (80%)