BRAIN TEASERS

enter your answer and press button OK

What force and strength cann...

What force and strength cannot get through, I with a gentle touch can do. And many in the street would stand, were I not a friend at hand. What am I?

Correct answers: 32

The first user who solved this task is H Tav.

#brainteasers #riddles

Register with your Google Account and start collecting points.

Check your ranking on list.

Marriage Certificate

Wife: 'What are you doing?'
Husband: Nothing.
Wife: 'Nothing...? You've been reading our marriage certificate for an hour.'
Husband: 'I was looking for the expiration date.'

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...

Jakob Steiner

Died 1 Apr 1863 at age 67 (born 18 Mar 1796).Swiss mathematician who was one of the greatest, contributors to projective geometry. He discovered the Steiner surface which has a double infinity of conic sections on it. The Steiner theorem states that the two pencils by which a conic is projected from two of its points are projectively related. He is also known for the Poncelet-Steiner theorem which shows that only one given circle and a straight edge are required for Euclidean constructions. His work included conic sections and surfaces, the theory of second-degree surfaces and centre-of-gravity problems. He developed the principle of symmetrization (1840-41). In 1848 he ws the first to define various polar curves with respect to a given curve, and introduced the “Steiner Curves.”«

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.