Philographics on the Behance Network. An Intuitive Guide To Exponential Functions & e. E has always bothered me — not the letter, but the mathematical constant.

What does it really mean? The mathematical constant e is the base of the natural logarithm. And when you look up natural logarithm you get: The natural logarithm, formerly known as the hyperbolic logarithm, is the logarithm to the base e, where e is an irrational constant approximately equal to 2.718281828459. Nice circular reference there. Introduction - 10,000 Year Clock. The full scale 10,000 Year Clock is now under construction.

While there is no completion date scheduled, we do plan to open it to the public once it is ready. The essay below by Long Now board member Kevin Kelly discusses what we hope the Clock will be once complete. Lectures. Lectures. Most Amazing Time Lapse Video of Milky Way Ever Made. Seriously. The Art of Complex Problem Solving. Scope. What facts support evolution. Fallacy List. Imagining the Tenth Dimension - A Book by Rob Bryanton.

Personal and Historical Perspectives of Hans Bethe. What is Consciousness? Biggest Scientific Breakthroughs of 2011. The Scale of the Universe 2.