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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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New Metal Content
Life imitates Star Trek.
http://www.physorg.com/news167925273.html Pete -- Pete Snell Department of Physics Royal Military College Kingston, Ontario, Canada ----------------------------------------------------------------------- In a car everything you see is just more TV. You're a passive observer and it is all moving by you boringly in a frame. On a cycle the frame is completely gone. You're completely in contact with it all. You're in the scene, not just watching it anymore, and the sense of presence is overwhelming. Robert Pirsig Zen and the Art of Motorcycle Maintenance. (1974) |
#2
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New Metal Content
Pete Snell wrote:
Life imitates Star Trek. http://www.physorg.com/news167925273.html In this week’s Nature Physics an international team, led by Oxford University scientists, report that a short pulse from the FLASH laser ‘knocked out’ a core electron from every aluminium atom in a sample without disrupting the metal’s crystalline structure. This turned the aluminium nearly invisible to extreme ultraviolet radiation. |
#3
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New Metal Content
"Louis Ohland" wrote in message ... Pete Snell wrote: Life imitates Star Trek. http://www.physorg.com/news167925273.html In this week’s Nature Physics an international team, led by Oxford University scientists, report that a short pulse from the FLASH laser ‘knocked out’ a core electron from every aluminium atom in a sample without disrupting the metal’s crystalline structure. This turned the aluminium nearly invisible to extreme ultraviolet radiation. but it wasn't around for very long: "Whilst the invisible effect lasted for only an extremely brief period - an estimated 40 femtoseconds - it demonstrates that such an exotic state of matter can be created using very high power X-ray sources." |
#4
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New Metal Content
"Pete Snell" wrote in message ... Life imitates Star Trek. http://www.physorg.com/news167925273.html Pete -- Pete Snell Department of Physics Royal Military College Kingston, Ontario, Canada ----------------------------------------------------------------------- In a car everything you see is just more TV. You're a passive observer and it is all moving by you boringly in a frame. On a cycle the frame is completely gone. You're completely in contact with it all. You're in the scene, not just watching it anymore, and the sense of presence is overwhelming. Robert Pirsig Zen and the Art of Motorcycle Maintenance. (1974) Another Pirsig fan....His book had more applicability to metal working, electronic trouble shooting, marriage encounter, and just about every endeavor of peoplekind. |
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