All about, but cannot be seen,...
[1786] All about, but cannot be seen,... - All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard. What is it? - #brainteasers #riddles - Correct Answers: 107 - The first user who solved this task is Djordje Timotijevic
BRAIN TEASERS
enter your answer and press button OK

All about, but cannot be seen,...

All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard. What is it?
Correct answers: 107
The first user who solved this task is Djordje Timotijevic.
#brainteasers #riddles
Register with your Google Account and start collecting points.
Check your ranking on list.

Why the sun lightens our hair...

Why the sun lightens our hair, but darkens our skin?
Why women can't put on mascara with their mouth closed?
Why you don't ever see the headline "Psychic Wins Lottery"?
Why "abbreviated" is such a long word?
Why doctors call what they do "practice"?
Why you have to click on "Start" to stop Windows XP?
Why lemon juice is made with artificial flavor, while dishwashing liquid is made with real lemons?
Why the man who invests all your money is called a broker?
Why there isn't mouse-flavored cat food?
Who tastes dog food when it has a "new & improved" flavor?
Why they sterilize the needle for lethal injections?
Why they don't make the whole plane out of the material used for the indestructible black box ?
Why sheep don't shrink when it rains?
Why they are called apartments when they are all stuck together?
If con is the opposite of pro, is Congress the opposite of progress?
Why they call the airport "the terminal" if flying is so safe?
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

Born 18 Mar 1796; died 1 Apr 1863 at age 67.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.