BRAIN TEASERS

enter your answer and press button OK

Find number abc

If b29cb - 5ba3c = 2aab7 find number abc. Multiple solutions may exist.

Correct answers: 31

The first user who solved this task is Djordje Timotijevic.

#brainteasers #math

Register with your Google Account and start collecting points.

Check your ranking on list.

Bret Ernst: Blame America

Everybody likes to blame America for everything. What are we, only 233 years old? These other countries are thousands of years old. Not only did they not get it right, but a lot of times they screw up and ask us for help. Thats like a 90-year-old man asking a two-year-old for advice.

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...

Ira S. Bowen

Born 21 Dec 1898; died 6 Feb 1973 at age 74.Ira Sprague Bowen was an American astrophysicist whose investigation of the ultraviolet spectra of highly ionized atoms led to his explanation of the unidentified strong green spectral lines of gaseous nebulae (clouds of rarefied gas) as forbidden lines of ionized oxygen and nitrogen. This emission, appearing to match no known element, had formerly been suggested to be due to a hypothetical element, “nebulium.” Bowen was able to show, that in reality, the emission lines exactly matched those calculated to be the “forbidden lines” of ionized oxygen and nitrogen under extremely low pressure. This made a major advance in the knowledge of celestial composition. He was director of the Mt. Wilson and Palomar Observatories from 1948-64.«

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.