The fossil record holds a lot of evolutionary information that can't be seen on shorter time scales, although the more recent fossil record is more complete. Among other things, the fossil record demonstrates that extinctions can open up ecological space for new speciation and radiation, and that life forms tend to begin small and evolve to be bigger over time.
Roizen notes some of the opportunities available for up-and-coming entrepreneurs: 1) There is still a tremendous amount of capital. Mobius, in 2002, had $500 M - $8 M left to invest in one fund, 2) There is rationality for the market with respect to hiring, office space and expectations of people to work with, 3) Company valuations are still pretty high, 4) Collaborative efforts between entrepreneurs and VCs, and VCs with other VC...more
This lecture introduces the idea of a path integral (scalar line integral). Dr Chris Tisdell defines the integral of a function over a curve in space and discusses the need and applications of the idea. Plenty of examples are supplied and special attention is given to the applications of path integrals to engineering and physics, such as calculating the centre of mass of thin springs.
Mitchell Baker, CEO of Mozilla, talks about how Firefox played a significant role in changing the consumer side of the Internet. She describes how Mozilla is a key contributor in moving the Internet towards a more complete space. She also explains how the Mozilla project made the Internet serve as a platform for application development.
People can't be forced to be friends, notes Facebook founder Mark Zuckerberg, but innovative entrepreneurs can facilitate a friendly work environment. He attributes part of his enterprise's success to casual, unstructured communication woven into the work day. His hope? To create the space for co-workers to freely associate ideas and stretch their imagination.
Dr. David McKay, Chief Scientist for Astrobiology at the Johnson Space Center, lectures on his scientific experience with meteorites, more specifically ALH 84001.
Rocco L. Mancinelli, a Senior Research Scientist with the Search for Extraterrestrial Life, discusses organisms' potential for survival, adaptation and biological evolution in the atmosphere and beyond to outer space.
Finding a Unit Tangent Vector at a Given Point. In this video, I find a unit tangent vector to a space curve at a given value of t.
Abstract Data Types, Wall of Abstraction, Why ADTs?, Live Coding Example: Creating the Vector Class, Private Data Members, Growing Dynamically: Making Space at Runtime, Insert and Remove Functions, Templatizing the Class Created, Including the "template.cpp" - Why?
Amateur hackers are mainly knowledgeable about the windows environment, says Thompson. But professional hackers can hack into anything. Symantec welcomes the giants like Intel and Microsoft into the space. According to Thompson, the Netscape phenomenon was a product of the arrogance of youth that is not prevalent in the country boys at Symantec.
If you're only working to serve someone else. stop. Only when you're following your true passions - in the case of Peter Diamandis, founder of X PRIZE and multi-time space entrepreneur and enthusiast - can you withstand the bumpy path to success. And if you're unsure of where your passions lie, simply revisit what you daydreamed about most from your childhood. This, says Diamandis, is where all the biggest ideas first hatch.
Cop Story, Review Of Rapidly Decreasing Functions, Generalized Functions (Distributions) (Delta Function, Etc.), Viewing Delta As A Limit V. Operationally, Definition Of A Distribution, Delta As A Distribution, Discussion Of How To Consider Ordinary Functions In This Space; Pairing Through Integration