Concert

The Lighthouse Café

Pyotr Ilyich Tchaikovsky 1840 – 1893 was a Russian composer of the Romantic period. He was the first Russian composer whose music made a lasting impression internationally, which was bolstered […]

Free

Pathfinder’s Office Hours

Pathfinder's Place

Pathfinder’s Office Hours at the Science Circle   Are you interested in immersive learning, art and education in virtual worlds? Want to join an engaging discussion with a roundtable of […]

Free

Sustainable Energy Science Lab

Sustainable Energy Science Lab

Solar Sierra and Windy Schor represent EnergyTeachers.org in Second Life, building virtual objects for exploring real-life technologies, and holding meetings and discussions between educators and interested people. Windy uses the […]

Free

The Equivalence Theorem

Auditorium

The Cantor Bernstein Schröder Theorem of Set Theory   The EQUIVALENCE THEOREM (a.k.a. Bernstein-Schröder Theorem) Modern set theory originated between 1874 – 1884 from the researches of Georg Cantor at Universität Halle, Germany. Around 1895, Cantor presented the EQUIVALENCE CONJECTURE: Given sets A and B, if A is equivalent to a subset of B and […]

Free

Back to top