Lunar Module Eagle stands in the morning sun on the Moon in July As originally conceived the entire Apollo spacecraft with a crew of three would have risen from Earth and landed on the Moon, blasting off to return home.
See also the talk about Machine Intelligence below. Stream analysis and segregation is a fundamental process of the brain. Machine Intelligence as derived from biological processes Jeff Hawkins of Numenta gives a fascinating talk about pattern recognition in the brain. Foundations of Machine Intelligence" https: He has been eminently successful with his products, which are knowingly designed to sound good, to last forever, with rare model changes, and which are readily serviced in the unlikely event that they ever need it.
Nelson ran out of time for his talk. What he covered is written up at firstwatt almost verbatim. See also the stereophile CAS6 summary of his talk. MP3 gegen CD " Peter Aczel - " The Audio Critic " - What I have learned after six decades in audio call it my journalistic legacy - 30 April A month before his 89th birthday Peter Aczel published his Audio Legacy ending a long obsession with no nonsense and trustworthy audio journalism.
Don Barringer helped to set them up and tweaked them to his "Subjective Neutrality" version in later years.
Still, Peter could not resist to also eventually own the LX built by Dr. Frank Brennerthus following the progress that has been made since his initial challenge to me. Congratulations, Dear Peter, on your 89th! I wish you many more years of acceptable health, companionship with your wife and joyful listening to come!
As always he gives a lucent presentation, arguing for a flat on-axis frequency response, non-resonant behavior and a smoothly controlled directivity index, e.
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DIY Power amplifiers with extremely low distortion On his Neurochrome Audio website Tom Christiansen describes and offers solid-state and vacuum tube power amplifier designs, circuit boards and construction plans for DIY.
Power levels are well suited to my LX series speaker designs. Specifications are excellent but I have no listening experience with such low levels of distortion. Most importantly, the amplifier must not go into spurious oscillation, or DC output generation, or other misbehavior when internally voltage or current clipping.
My active crossover, multi-channel loudspeakers put much less demand on the individual amplifiers, than the typical n-way passive crossover speakers that are common place, because each amplifier sees a benign load made up of the speaker cable, the voice coil impedance and the motional back emf.
Listen to the examples on the MEDIA page of my website as well as the samples that are available on the three compact discs that are linked to on the NEWS page of my website. My interest is in stereo upmixes which include distinct, stable separation of vocal and instrumental elements from the original mono source, i.
The attached file represents what I expect when I refer to a mono source upmixed to stereo. While I realize that there is a big difference between real-time upmixing from mono to stereo, as with the Voicode plug-in www. It is spatial distortion, which his upmix to pan-pot stereo removes to a high degree.
To me pan-pot or multi-track mixes are still distortions of the spatial context in which natural sounds always exist. Furthermore, listening to the examples I have the impression that new, unpleasant timbre distortions have been introduced.
Without hearing the original mono version I cannot tell which form of distortion I would prefer to live with in order to enjoy the musical content of the old mono recordings. But the technology presented here is certainly a big step up from earlier attempts to add spaciousness to mono recordings.
The problem is plasticity of the brain.
Perception depends upon brain processes, which are not stable with time.Type or paste a DOI name into the text box. Click Go. Your browser will take you to a Web page (URL) associated with that DOI name. Send questions or comments to doi. Backtrack magazine:illustrated journal about railway and locomotive history.
Backtrack magazine:illustrated journal about railway and locomotive history. Vibration Analysis Rotating Equipment - Ebook download as PDF File .pdf), Text File .txt) or read book online.
Introduction to Statistical Thinking for Decision Making. This site builds up the basic ideas of business statistics systematically and correctly. The bell curve, that characterizes the normal distribution, was refined by other mathematicians, including Laplace and Gauss, and the distribution is still referred to as the Gaussian distribution.