“The two main concepts of time are presentism and the block universe view of time. In presentism view of time only present is real while past and future do not exist and passage of time is just an illusion. Presentism may appear more intuitive however the block universe view is more popular among physicists and is supported by heavy weights in physics like Einstein. In block universe view time is laid out as a time-scape. This is based on theory of special relativity and an interpretation of Lorentz transformation equations called the Putnam argument. Physicist Roger Penrose advanced another variation of this argument called the Andromeda paradox. These paradoxes and anomalies arise from lack of simultaneity due to Einstein postulate of constancy of the speed of light in theory of special relativity. There is no free will in the block universe of time. All times in past and future already exist. There is however no explanation of lack of visitors from a futuristic technologically advanced civilization. Block universe also cannot explain what causes us to move through time towards the future and why we cannot willfully move back and forth through this time-scape. Neither of the two views on time can explain what time really is and what the cause of time is.” -from: timephysics.com
Ivorie Manning, an N.B.A. shooting consultant, highlights the key components of a good jumper, using sharp shooters from the N.B.A. playoffs.
“The hips should always move as a natural consequence of actions initiated in the legs. Since they have no mechanism by which to move in and of themselves, it is an error to think that we move from our hips. Like a tree being swayed by the wind, the hips are caused to move. An ignorance of this critical concept has left some practitioners struggling for decades, trying to find root, fluidity and true sticking ability. The hips must allow movement. They must acquiesce to pressure, letting force, movement and energy transfer up, down, forward, backward and side to side. While the pressure may come from the opposite leg¹s driving force or from a partner¹s pushing, the hips themselves must remain receptive, passive and clear. We do not try to move the hips in relation to force but, like the axle of a wheel, allow them to rotate as a matter of course. Usually it is the passive rotation into one hip which causes the passive rotation out of the other hip. This is often described as folding the hip or kua.”
An artificial intelligence system learning about the outer world. Teach gnod about the relations between the things out there.
interactive visualization tool for music and books.
interactive map of all genres of music
“Music-obsessed designer Glenn McDonald works at the sonic data hubEcho Nest. Recently, he unveiled a new project: the algorithm-based map of musical genres called Every Noise At Once. It’s a fairly comprehensive look across the vast and sundry types of music, including plenty of kinds you probably never knew existed.” — http://www.fastcocreate.com/1682883/music-map-reveals-what-melodic-death-metal-and-every-other-genre-actually-sounds-like#1
Interested in learning about house music?
This is an awesome house mix compiled by Future (DJ Future the Shaman). He’s an amazing teacher and artist as well: Check out his blog for more information: http://future-ninja.tumblr.com/
An unfolding history of the major events of the Civil War, starting with the election of Abraham Lincoln.
Timeline of events of the civil war from the NYTIMES. Great teaching resource for educators and kids.
Could what looks like A.D.H.D. be a sleep disorder in disguise?
“For some people — especially children — sleep deprivation does not necessarily cause lethargy; instead they become hyperactive and unfocused. Researchers and reporters are increasingly seeing connections between dysfunctional sleep and what looks like A.D.H.D., but those links are taking a long time to be understood by parents and doctors.”
From Debussy on, non-musical systems have influenced composers. Here’s how Mihaly Csikszentmihalyi’s concept of flow shaped my work for strings.
“…someone in flow loses a sense of self-consciousness: the activity is entirely rewarding in and of itself, as one gains a sense of personal control over the activity.”
“thinking about thinking”