MATH PUZZLE: Can you replace...
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 2981
The first user who solved this task is Дејан Шкребић.
#brainteasers #math #riddles
Leeuwenhoek description of lake waterIn 1674, Antonie van Leeuwenhoek, in his continuing series of communications to the Royal Society, wrote a letter describing his observation on lake water. It included a clear description of the green charophyte alga Spirogyra. This was the first recorded observation of protozoa.] |