BRAIN TEASERS

enter your answer and press button OK

Can you name the athletes by the picture?

Correct answers: 20

The first user who solved this task is Djordje Timotijevic.

#brainteasers #riddles #sport

Register with your Google Account and start collecting points.

Check your ranking on list.

David Alan Grier: Old Fashioned Terrorism

When I was a kid, a terrorist act -- that was like when someone would take a dump in the swimming pool at the YMCA during summer camp. That was a terrorist act. That was the most evil thing you could do.

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...

First Star Photograph

In 1850, the first photograph of a star was made. At Harvard Observatory (founded 1839), the observatory director, William Cranch Bond and a Boston photographer John Adams Whipple took a daguerreotype of Vega. (A daguerreotype used a copper base with a thin film of polished silver sensitized by iodine vapors to form a thin yellow layer of silver iodide. After the photograph was taken, the plate was developed in a current of magnesium vapor at 75ºC, which adhered to the light-struck parts of the plate. The plate was then fixed in sodium thiosulfate, and rinsed.) Overall, this process to take an image of a star or nebula took many hours of patient skill. Fortunately better photographic materials were later invented.

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.