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Professor Ian Stewart discusses the importance of symmetry and it's relationship with how we percieve and build the world around us.

Exponential expressions with multiplied and divided terms can be simplified using the rules of adding and subtracting exponents.

A humorous look at early attempts at creating number systems, leading up to our modern base-10 decimal number system which uses "positional notatio...

Cuba linda de mi vida.....,te recordaremos.Dedicado para toda la gente que esta lejos de mi tierra.

Jairo Sequeira con guitarra acústica tocando una canción cubana, dedicada al Ché Guevara, con acompañamiento de Band-in-a-Box. Improvisación sobre ...

Gabriel y Jairo