BRAIN TEASERS

enter your answer and press button OK

Calculate the number 468

NUMBERMANIA: Calculate the number 468 using numbers [6, 5, 7, 1, 78, 290] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 22

The first user who solved this task is Manguexa Wagle.

#brainteasers #math #numbermania

Register with your Google Account and start collecting points.

Check your ranking on list.

Few more Halloween jokes

Where do ghosts like to travel on vacation?
The Dead Sea!

What did the mother ghost say to the baby ghost as they drove down the street?
Buckle your sheet bel

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...

Thyroxine

In 1914, the thyroid hormone, thyroxine, was first crystallized by biochemist Edward C. Kendall of the Mayo Foundation in Rochester, NY. Thyroxine controls the cellular rate of carbohydrate metabolism and of protein synthesis and breakdown. On Dec 23, he began evaporating an ethanol solution of a sample of the acid-insoluble fraction of thyroid glands removed surgically from patients. It left a white crust surrounded by a ring of yellow waxy material. Adding ethanol now redissolved the waxy material, but not the white crust. On Christmas Day, he dissolved some of the white crust in ethanol and sodium hydroxide. A few drops of acetic acid precipitated crystals. This throxine was fully active in relieving the symptoms of thyroid deficiency in hypothyroid patients.

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.