MATH PUZZLE: Can you replace...
[6387] MATH PUZZLE: Can you replace... - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 143 - The first user who solved this task is Nasrin 24 T
BRAIN TEASERS
enter your answer and press button OK

MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 143
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #riddles
Register with your Google Account and start collecting points.
Check your ranking on list.

Forever Friends

On New Year's Eve, Patty stood up in the local bar and said that it was time to get ready. At the stroke of midnight, she wanted everyone to be standing next to the one person who made their life worth living.
As the clock struck 12, chaos erupted as the bartender was almost crushed to death.

Jokes of the day - Daily updated jokes. New jokes every day.
Follow Brain Teasers on social networks

Brain Teasers

puzzles, riddles, mathematical problems, mastermind, cinemania...

Edison patent

In 1882, Thomas A. Edison was issued a patent for an improvement to the telephone (No. 252,442). It described a carbon microphone. Finely divided conducting material, such as carbon, between metal cups mounted on arms is attached to the mouthpiece diaphragm. As sound waves directed through the mouthpiece move the diaphragm, the arms change the pressure on the carbon button which in turn varies an electric current passing through the carbon button. Changes in the current correspond to the pitch and amplitude of the sound. One arm conducts the electrical current to the carbon button, and the the other from it.
This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.